x402 List

x402 Protocol Service Directory

All x402 Services

SERVICES ── 534 total ── showing 534 ── for live status visit /status

STATUS ── ● online · ◐ degraded · ○ offline · ─ unknown ── live health, see /status.

TIER ── ✓ = verified: we paid a real call to the endpoint and it delivered · ◦ = payment-ready: answers a valid x402 challenge and is live · blank = listed. See /methodology.

VOL 30D and BUYERS 30D are a measured 30d floor across listed services, not an ecosystem total; an unmeasured service is not counted as zero.

·sh = shared payout address; volume attributed pro-quota (buyers left whole).

All x402 services with live status, name, verified status, description, category, endpoint count, cheapest per-request price, 24-hour uptime, measured 30-day on-chain volume, distinct 30-day buyers, and supported networks (testnet networks are marked). Click a column header to sort.
STATUS NAME TIER DESCRIPTION CATEGORY EP FROM $/REQ UPTIME 24H VOL 30D BUYERS 30D NETWORKS
Web Scraping API AI-powered web scraping API with 28 endpoints. Extract data from Google Maps, LinkedIn, Reddit, Instagram, Airbnb, and more. Powered by real 4G/5G mobile proxies. Pay per call with USDC via x402. Data 11 $0.003 100.00% $0 0 SOL
PII Scrubber Strips PII from text � SSNs, emails, API keys, phone numbers, addresses, credit cards, IPs. GDPR/HIPAA aligned. Pay-per-request via x402 (USDC on Base). Data 1 --- 0.00% --- ---
QuickSilver Pro Pay-per-use USDC top-up for OpenAI-compatible LLM inference. Pay a fixed denomination over x402 and receive a prepaid OpenAI-compatible API key — no account, no card; the key meters per-token against the prepaid balance. Base mainnet, Coinbase CDP facilitator. AI 3 $1.00 100.00% $0 0 BSE
Money AI Autonomous agent producing work to order and delivering it on payment. Ten services. For agents: classify, extract-fields, rewrite ($0.003-0.03, JSON out, sub-second). For humans: website, landing-copy, code-review, sql-query, summary, technical-writing, data-extraction ($0.25-15). No account, no signup, no human in the loop: quote, pay the exact amount, the file is built and returned. USDC on Base via x402 exact (CDP facilitator), with an exact-amount-onchain fallback. AI 1 $0.002 100.00% $0 0 BSE
JarvisClaw AI API gateway settling in USDC on both Base and Solana. 320 models through one OpenAI-compatible endpoint, plus 21 AIP intent types so callers need not know the URL layout. Every paid response carries an EIP-712 signed settlement receipt verifiable offline. AI 5 $0.041 100.00% $0.37 3 BSE / SOL
TNT House Risk-Data API Solana token risk scoring for AI trading agents: 0-100 safety score, on-chain insider wallet cluster detection via shared first-funder tracing, mint/freeze authority status, holder concentration, live price/liquidity/volume. Finance 1 $0.02 100.00% $0 0 SOL
BlinkCodes Buy real-world digital goods with USDC on Base via x402: gift card codes (Steam, Razer Gold, PSN, etc.), game top-ups, and travel eSIMs. Single-call purchase: POST /api/v1/buy returns 402 priced for the chosen catalog item; replay with X-PAYMENT delivers the code. Catalog of 1200+ products at /api/public/products. Other 1 $0.01 100.00% $0.36 1 BSE
Momentum Signals Volatility-adjusted cross-sectional momentum rankings for the top-50 crypto assets and 40 US equities/sector ETFs. Multi-horizon blended returns divided by annualised volatility, ranked cross-sectionally with long/short quintile flags. Pay 0.05 USDC on Base and the transaction hash IS your API key - no signup or account needed, which is what an autonomous buyer requires. Free previews at /v1/crypto/preview and /v1/preview. Also exposes an MCP server at /mcp and an A2A agent card. Data 2 $0.05 100.00% $0 0 BSE
Lazaretto Deterministic pre-install malware verification for npm packages, AI agent skills, and MCP tools. Behavioral scan with file-and-line evidence for 0.03 USDC per call over x402 on Base, plus a free lockfile check against OSV/OpenSSF malicious-package advisories and signed portable verdicts (Ed25519 attestations). Verification 2 $0.03 100.00% $0 0 BSE
Gondola Pay-per-request LLM inference over x402. 263 models on Venice AI supply, including uncensored lines. OpenAI-compatible chat and images plus Anthropic messages. Each request routes to the cheapest supplier and the 402 challenge quotes the exact price. Overpayment banks as reusable credit for the paying wallet. AI 3 $0.01 100.00% $0 0 BSE
Japan Diet API Japanese Diet members and full-text minutes search over the official National Diet Library archive. x402-enabled for AI agents. Data 4 $0.004 96.15% $0 0 SOL / BSE / POL
Concordance Aggregates 18 free and keyed data sources (SEC EDGAR, FRED, GDELT, arXiv, court opinions, market data, Wikipedia, and more) into 6 x402-priced tools: full-text search, economic/financial time series, cross-category digest, cross-source company briefs, source corroboration scoring, and chronological timelines. Data 6 $0.01 100.00% $0 0 SOL / BSE
Permit Verdict Settlement Oracle Settlement oracle for crypto price events. Answers whether an asset traded or closed above/below a threshold during a window, with YES/NO/DISPUTED, per-venue evidence from Hyperliquid, Coinbase and Kraken, and stated confidence. Touch and close modes give different answers, and that difference is the most common settlement dispute. A paid attestation returns a signed decision_id anyone can decode for free and re-verify later. Also serves US building-permit history and address activity verdicts across seven cities. No API key, no account, no signup. Verification 4 $0.01 100.00% $0 0 BSE
TopPot Agent Arena Agents-only football (FPL) score-prediction pots. AI agents discover open pots, submit score predictions, and pay the USDC entry fee on Base over x402. All entries fund the prize pool and winners are paid out on-chain automatically once every match is scored — tie-aware prize splitting included. Free machine-readable discovery at https://toppot.io/api/predictor/agent-pots and docs at https://toppot.io/api/predictor/agent-pots/docs. Finance 1 $5.00 100.00% $0 0 BSE
TaskFleet Structured-data and data-access APIs for AI agents: web search (with recency filter) via Serper+Brave failover, JS-rendering scraper to clean Markdown or schema-driven JSON, on-chain Base wallet analysis (balances, holdings, activity tags), schema-validated JSON extraction, bulk translation, and structured code review. Every response is a guaranteed-valid JSON envelope. No account or API key — pay per call in USDC on Base via x402. Data 8 $0.01 100.00% $0 0 BSE
DomainSignal Deterministic domain classification, DNS and email-security audits, website metadata, and batch lead-list qualification paid per call with x402 USDC on Base. Data 4 $0.001 100.00% $0 0 BSE / SOL
AgentToll Base-native onchain data for AI agents, pay-per-call in USDC via x402 v2. Token prices by contract, wallet portfolios valued in USD, token safety checks (honeypot/taxes/owner powers), new-pool radar with per-pool token addresses, Basename resolution, gas costing, stateless watch diffs. 16 paid endpoints ($0.001-$0.005), 4 free. Every 402 quote carries the endpoint's request and response schema. Failed requests are never charged. Open source (MIT), MCP server on npm (agenttoll-mcp). Data 15 $0.001 100.00% $0.03 4 BSE
agente-jefe Pay-per-call text processing for agents: structured summarization with entity extraction, custom-category classification with 0-1 scoring, and short-form SEO content generation (titles, meta descriptions, slugs). JSON in, JSON out. No account or API key required. $0.005-$0.02 per call in USDC on Base. AI 3 $0.005 100.00% $0.005 1 BSE
ServoSignal Evidence-backed B2B company intelligence for AI agents: recent company signals, prospect qualification, why-now reasoning, actionable deal briefs, and deep account research. Pay per request in USDC on Base through x402 v2; no account or API key required. Data 3 $0.05 100.00% $0 0 SOL / BSE
PocketFactory Korean Data API Pay-per-call Korean official-data APIs for business registration status, disclosed tax delinquency records, and Korean news search. x402 v2 with USDC on Base mainnet. Data 3 $0.01 100.00% $0 0 BSE
zlv402 Deterministic Solana token security risk scanner for AI agents — analyzes liquidity, LP lock, holder concentration, and mint/freeze authority to flag rug-pull risk before you trade AI 1 $0.002 100.00% $0.008 2 SOL
BentCrypto Solana pre-trade token intelligence APIs for AI agents and automated applications, providing token risk scoring and authority/Token-2022 security analysis through x402 USDC micropayments. Blockchain 2 $0.01 100.00% $0 0 SOL
mossgate onchain trust api for ai agents: token risk verdicts (ok/caution/danger) and wallet reputation on base, paid per call in usdc via x402. no signup. Other 3 $0.01 0.00% $0 0 BSE
Polymarket Signal Detector Polymarket wallet-reputation and insider-signal data, gated by x402: per-wallet reputation lookup, per-market wallet-flow by persona, a free-to-verify signal track record, resolved-signal drill-down, feedback channel, and push-notification signal subscriptions (day/week/month). Finance 8 $0.01 95.65% $0 0 BSE
Data Quality Gate Deterministic dataset-quality gate for AI agents. POST a JSON dataset, get back a RELIABLE / USABLE_WITH_CLEANING / UNRELIABLE verdict with exact, recomputable facts (completeness, nulls, types, impossible values, duplicates, outliers) and a 0-100 score -- no LLM, same input always produces the same output. On financial/trading data, also detects cross-source price divergence for the same asset (e.g. the same trading pair quoted very differently by two exchanges), reported as additional facts. Built to be called per-batch before a decision, not as a real-time/streaming feed. Verification 1 $0.01 100.00% $0 0 BSE / SOL
rue render any url or raw html to pdf, png or jpeg via headless chromium. ssrf-guarded. pay per call in usdc via x402. Other 1 $0.003 0.00% $0 0 BSE
cogDepot Anonymous B2B broker for AI-agent service exchanges. Agents list capabilities, negotiate deal terms, finalize, and receive a direct peer-to-peer channel. Paid per call over x402. AI 2 $0.50 100.00% $0 0 BSE
DAO Proposals — Onchain Verified Live DAO governance proposals for ENS, Arbitrum, and Uniswap — verified directly against each DAO's onchain Governor contract, not just Snapshot. Catches votes a public tracker showed as quiet while they were actually live — see the discrepancy field. $0.02/call, Base mainnet, x402 v2. Free /preview on every paid route. Blockchain 2 $0.01 100.00% $0.02 1 BSE
Ask Cairn Paid answers from Cairn, a fully disclosed autonomous AI agent running a public experiment at cairnwake.com. Pay 1.5 USDC via the x402 exact scheme on Solana (or 0.02+ SOL with a memo) and the question gets a researched answer plus a permanent page in the agent public record. The same rail sells x402 conformance reports (25 USDC: hostile-payload battery, one real settlement with the agent own USDC, permanent ed25519-signed report) and commissioned sealed-prediction experiments (100-500 USD by scope). Every payment and answer is on-chain and public. AI 1 $1.50 100.00% $0 0 SOL
ByKaranteli Crypto Derivatives Data Pay-per-call crypto derivatives depth: multi-exchange liquidation map levels, Deribit options tape history, and VPIN order-flow toxicity history for BTC, ETH and SOL. Live snapshots stay free and unmetered; paid calls buy depth and history. Data 3 $0.002 96.23% $0.15 5 SOL / BSE
FiatDock Marketplace An MCP marketplace where AI agents discover and pay for other people's MCP services per call in USDC over x402. Payment settles directly buyer-wallet to seller-wallet on Base — non-custodial, no accounts, no API keys, no subscriptions. 33 services are listed today (24 currently buyable); agents browse them with the free search_services tool and pay with call_service. FiatDock also runs 12 first-party paid endpoints of its own: Base chain reads (gas, blocks, balances, tx status, ERC-20 metadata) from $0.001, token-safety and rug screening, address intelligence, a full token report, and a non-custodial USDC-to-bank ramp. Five tools are free and need no wallet at all. Blockchain 12 $0.001 100.00% $0.04 3 BSE
Recurrence Expander Turn RFC 5545 RRULEs and cron expressions into exact UTC instants. IANA timezones and daylight saving are handled correctly. The two hard cases are flagged by name. A spring-forward time that never happens is flagged nonexistent. A fall-back time that happens twice is flagged ambiguous. Results are deterministic and reproducible. Every response reports the tzdata and library versions it used. Every response also carries an Ed25519-signed reproducibility receipt. The receipt binds the input hash, the output hash and the engine versions. WHAT YOU ARE NOT BUYING: secrecy. You can expand the rule yourself and check every instant we return. The fee buys current timezone data, the two daylight-saving edge cases handled rather than assumed, and a reproducible record of which versions produced the answer. Free preview endpoint at /v1/preview. Operated by Oddments. Paid per call in USDC on Base via x402. Data 1 $0.02 98.11% $0.10 2 BSE
API Acre Thirty-five pay-per-call x402 APIs for web and document analysis, structured-data transformation, developer audits, SEC filings and financial facts, and EVM utilities. Settles USDC on Base through CDP with machine-readable schemas and samples. Data 35 $0.001 100.00% $2 2 BSE
x402 Shop ASR Audio Services ASR audio services: transcribe a podcast feed (RSS) or any direct audio URL into a clean timestamped transcript, optionally with an AI summary (thesis, key points, verbatim quotes). Two modes: synthesis (transcript + summary, from $0.10/30-min block) and transcript (transcript only, from $0.06/30-min block). Exact USDC price quoted in the 402 challenge; pay per job on Base. AI 1 $0.01 0.00% $1 1 BSE
Official Source Evidence Pay-per-call exact OFAC identifier evidence and SEC filing-trigger deltas for autonomous agents, with official-source URLs, source hashes, freshness data, and signed receipts. Verification 2 $0.05 100.00% $0.77 3 BSE
Busker Content-to-context toolkit for AI agents, live on Base mainnet. Twelve deterministic pay-per-call tools: HTML to markdown (~80-85% token reduction), PDF to markdown, OCR for scanned PDFs, structured JSON extraction, RAG chunking, sentence embeddings, cross-encoder reranking, URL fetch-and-clean, JSON/YAML/CSV/XML conversion, QR generation, image ops, and object detection. $0.001-$0.01 USDC per call, settled via CDP. Machine-readable discovery at /.well-known/x402, /openapi.json and /llms.txt. Content 12 $0.001 100.00% $0.06 2 BSE
Mazza Group AI APIs 21 AI-powered API endpoints with x402 pay-per-call micropayments in USDC on Base. No API keys, no subscriptions. AI 9 $0.60 100.00% $0 0 BSE
Dokimo Verify API Pay-per-call x402 endpoint that independently recomputes a Merkle evidence proof to its committed root and returns a signed attestation. Part of Dokimo, a non-custodial ASC-606 revenue subledger that turns x402 / AP2 / Stripe agent payments into audit-ready, verifiable books. Verification 1 $0.01 100.00% $0.07 4 BSE
Blixtworks img-categorize Vision toolbox for AI agents paid per call via x402 (USDC on Base): zero-shot image categorization with custom labels, image captioning, OCR text extraction, and CLIP embeddings. No accounts or API keys; free demo endpoint; buyers are never charged for failed requests. AI 4 $0.015 100.00% $0 0 BSE
Jobero job search Paid job search for agents: send a candidate profile and CV, get 7 matched roles back, each with a tailored CV and cover letter. Pay per search in USDC on Base via x402 (exact scheme, EIP-3009), or buy a credit pack. Also reachable as an MCP server at https://jobero.ai/mcp, where start_job_search speaks the x402 MCP transport. AI 3 $2.50 100.00% $0 0 BSE
Resonant Glyph Research Synthesis Cross-domain research synthesis. $0.05 per query via x402. Data 1 $0.05 0.00% --- --- BSP (testnet)
ClawMerchants LinkedIn Profile Rewrite Protocol x402/MPP skill endpoint: SKILL.md protocol for LinkedIn profile rewrites. Asset https://clawmerchants.com/v1/data/6dc9c756-2d43-4b74-bdb5-bbfdc78b3ac3 priced at 5 USDC on Base. AI seller Moneymaker disclosed. AI 1 --- 0.00% --- ---
Comrades of War — Spanish Gaming Community Archive API Research nearly five years of a popular Spanish Call of Duty clan and a rich SA-MP role-play community corpus. The archive preserves 110,023 posts and exposes 39,309 curated public posts for free search. Selected pages return citation-ready JSON or Markdown with authors, dates, conversation order, canonical URL, and source fingerprint. Data 1 $0.02 100.00% $0 0 BSE
AI Data Marketplace x402-paywalled data marketplace for AI agents with 10 endpoints: B2B leads, crypto candles, government contracts, foreclosures, GitHub developer emails, flight data, crypto signals, gig leads, and market research. Multi-chain USDC payments on Base, Arbitrum, and Solana. MCP tools for autonomous agent discovery and purchasing. Data 10 $0.05 100.00% $0 0 BSE
First Fold Conversion Briefs Paid x402 API for AI agents that turns a product offer, audience and proof into a structured conversion-ready landing-page message map. Returns objections, trust language, CTA options and testable first-fold copy in JSON; payments settle in USDC on Base. AI 2 $0.25 100.00% $0 0 BSE
Canu Verify Machine-first verification APIs for autonomous agents: deterministic MCP package security audits, isolated website and WebGL release QA, and structured invoice normalization or OCR verification with signed technical receipts. Verification 5 $0.29 0.00% $0 0 BSE
PayBox Agent Tools Three deterministic one-cent USDC utilities for AI agents: prompt-injection and secret-exfiltration risk scanning, canonical JSON profiling with SHA-256 fingerprints, and tabular data-quality profiling. AI 3 $0.01 100.00% $0 0 SOL / BSE
Herramientas Cobrables Small deterministic pay-per-use services for AI agents: JSON contract validation, business margin and break-even calculations, and public stock quotes. Payments settle with x402 v2 using USDC on Base. Verification 3 $0.01 100.00% $0 0 BSE
Cloud World Model Multi-cloud infrastructure simulation API with native x402 pay-per-request support — no signup required. Lets developers, architects, and AI agents model AWS, GCP, Azure, OCI, and DigitalOcean deployments without provisioning real resources. Supports RL autoscaling training, chaos engineering, multi-cloud cost/latency comparison, predictive scaling validation, and AI-generated architecture analysis. All metered endpoints accept USDC on Base mainnet via X-PAYMENT header — no account or API key needed. Compute 10 $0.001 100.00% $0.14 1 BSE / SOL
ALTAHUB — VIVARIUM autonomous machine services Pay-per-call machine services run by an autonomous entity: sovereign local-LLM text digest, live multi-source surveillance fleet items, and deterministic data transforms. USDC on Base via x402 v2, direct on-chain settlement verified against issued quotes. No human in the loop. AI 2 $0.0234 0.00% $0 0 BSE
Hermes Commerce — DACH x402 compliance The DACH compliance layer for x402 agents: Impressum/imprint, BFSG, DSGVO, cookie, outreach micros + content packs. USDC on Base. Other 7 $0.01 100.00% $0.17 3 BSE
x402-extract-api Pay-per-call API for AI agents: clean webpage extraction to markdown/text, schema-validated structured JSON extraction, HS/tariff code classification, and trade-compliance document (commercial invoice / packing list) field extraction. Priced per call in USDC via x402 -- no accounts or API keys required. Data 4 $0.002 100.00% $0 0 ARB / BSE / POL / SOL
Verdoc Deterministic GitHub repository analysis for coding agents. Returns an AGENTS.md with build and test commands quoted from the repository's own manifests, each tagged with the file it came from, plus a directory map and entry points. No language model is used: every path is checked against the git tree and ambiguous areas are marked unverified rather than guessed, so the same commit always returns the same answer. Pay per call in USDC on Base, Polygon or Arbitrum - no account and no API key. Data 2 $0.01 100.00% $0 0 ARB / BSE / POL
ToolFeeds SEC EDGAR Normalized SEC EDGAR company fundamentals. Divergent XBRL tags are resolved to a stable metric vocabulary and fiscal periods aligned across filers, so figures are directly comparable. Company lookup, filings and the metric vocabulary are free; financials, single-metric series and cross-company comparison are $0.04–$0.10 per call. Data 3 $0.04 100.00% $0.05 1 BSE
Compacthost AI Tools Pay-per-call generative AI tools for autonomous agents: full song generation (ACE-Step) and image generation (Chroma), settled in USDC on Base via x402. AI 2 $0.05 100.00% $0 0 BSE
FractalAI � Post-Quantum Proofs for AI Agents Post-quantum (CRYSTALS-Dilithium-2, NIST FIPS 204) services for autonomous agents, payable per call in USDC on Base: Dilithium-2 signing, PQC signature verification, AI decision attestation (VAID-1), training-data attestation (C2PA), provenance sealing (drand + on-chain), CBOM cryptographic-inventory sealing, and Know-Your-Agent identity verification. Self-facilitated (EIP-3009 gasless) with a facilitator-less txHash fallback. Signatures are anchored on the FractalAI L1 with a public, verifiable attestation permalink. Verification 7 $0.01 100.00% $0 0 BSE
Marz Greta-Lock Network — AI Text Human-Likeness Benchmark Scores how human AI-generated text sounds against 28 real personality profiles (EQ, formality, directness, hesitation, delay cadence). Free trial scoring; paid validated benchmarks, duels and job-specific coaching settle per-call via x402 — SOL on Solana (signature-proof, no custody) or USDC on Base, Polygon, Arbitrum and Avalanche. AI 2 $0.05 100.00% $0.13 1 SOL / ARB / AVX / POL / BSE
witnessd A neutral witness for the machine-readable web. Pay $0.02 USDC to have any URL or API response independently fetched, hashed, timestamped and archived by a third party, Merkle-anchored on Base hourly. Certified evidence retrieval ($0.05) for agent-commerce disputes. Certificates verify for free — by anyone, without trusting us. AI 3 $0.02 100.00% $0.11 2 BSE
agent-reader Two cheap, agent-native utility endpoints paid per call over x402 on Base: POST /extract turns any public URL into clean, LLM-ready Markdown with metadata (title, author, published date, links, word count) for $0.02; POST /repair-json repairs malformed JSON and optionally validates it against a supplied JSON Schema for $0.005. x402 v2, USDC, settled via the Coinbase CDP facilitator. Data 1 $0.005 100.00% $0.08 2 BSE
Trend Signals Derived crypto trend data for autonomous agents — not a price feed. PP-SuperTrend trend state across ~1,600 crypto assets: bull/bear direction on 1D, 4H and 1W, how many bars ago each asset flipped, the band level at which the trend invalidates, RSI divergences and 14-day momentum. These are computed signals over years of history from a continuously running pipeline, so an agent cannot cheaply reproduce them. Pay per call in USDC on Base from $0.01 — no signup, no API key, no subscription. Finance 4 $0.01 100.00% $0 0 BSE
Romny Polymarket + Copy Trade Data Paid Polymarket panel/outcomes/edges/rules alerts and copy-trade monitored wallets, wallet profiles, and trades via x402 on Base (0.01 USDC/query). Data 8 $0.01 100.00% $0.02 2 BSE
FabTally Agent API Pay-per-call utilities for AI agents: (1) instant slicer-accurate FDM 3D-printing quotes from an uploaded STL/3MF/STEP (print time, filament grams, priced quote) and (2) signed point-in-time URL attestations from a neutral third party. Other 2 $0.005 100.00% $0 0 BSE
Hyperliquid Intelligence API (FrostyFi) Full market intelligence for any Hyperliquid market — core crypto perps or HIP-3 equities/commodities/FX. Prices, funding regime (realized + cross-venue predicted), order-book depth & imbalance, aggressor flow, 24h momentum, plus an AI analyst desk note. $0.02 USDC per call via x402 on HyperEVM (eip155:999). Data 1 $0.02 100.00% --- ---
Lotus Network API Five pay-per-call services on Base: FLUX image generation, PDF-to-Markdown conversion, and an auditable gas forecasting loop (preflight, decision journal, and on-chain audit). Priced $0.002 to $0.05 per call in USDC. No API key, account, or subscription. Data 4 $0.002 100.00% $0.007 2 BSE
BaseSentinel Base threat-intel API for AI agents (M2M). HTTP 402 + USDC on Base. On-demand contract scan (SAFE/SCAM), daily threat feed, and live threat stream. Settlement via X-Payment-Proof (USDC tx hash). Blockchain 3 $0.005 0.00% $0 0 BSE
pagecheck — page audits and backtests, paid in USDC Two x402 endpoints on Base. /api/audit returns a deterministic technical audit of any product or landing page as JSON (1 USDC); /api/backtest runs a trading rule you POST as data, segmented out-of-sample against buy-and-hold, every fold reported including the losers (2 USDC). Both have free live samples. Settles EIP-3009 exact with no facilitator. AI 3 $1.00 86.54% $0 0 BSE
Arch Tools 63 AI-agent tools behind one API: per-call USDC via x402 v2 on Base and 8 more chains, prepaid credits, and an MCP endpoint (https://archtools.dev/mcp). AI 50 $0.01 100.00% $0.58 8 BSE / POL
GBLIN Protocol Treasury and risk data for a NAV-backed basket token on Base (cbBTC/WETH/USDC) with an automated on-chain crash-response policy. Agents can read live NAV and basket weights, the current market risk regime, MEV-safe swap quotes, and ready-to-broadcast calldata for redeeming to USDC just in time to pay an invoice. Settled via the Coinbase CDP facilitator; a free read-only MCP server is published on npm as @gblin-protocol/mcp-server. Finance 3 $0.001 100.00% $0.11 7 BSE
x402-farm Pay-per-call data & security tools for AI agents: honeypot / rug-pull token security checks (verdict OK/CAUTION/HIGH_RISK/AVOID, 8 chains), residential-IP web scraping that reaches sites blocking datacenter/cloud IPs (clean markdown), live token & DeFi market data, and global company data (US SEC EDGAR, UK Companies House, FR KYB/SIREN). Each route is a named job at a fixed USDC price. x402 on Base, no account, no API key. Data 6 $0.003 100.00% $9 4 BSE / SOL
Structured Extraction API Pay-per-call structured data extraction over x402. Nine endpoints covering PDF and text extraction against a caller-supplied JSON Schema, table parsing, web page extraction, HTML to Markdown, classification, translation, PII redaction and summarisation. No account, API key, subscription or minimum — each request settles in USDC on Base. Runs on owned GPU hardware, so document extraction is priced per call rather than the $15-30 per 1,000 pages typical of cloud document AI. Data 9 $0.001 100.00% $0.05 1 BSE
Tollmint Pay-per-call data for autonomous agents. A curated behavioural-science corpus with citations, replication grades and effect sizes; regulatory enforcement actions over deceptive design citing the regulator source; dark-pattern detection; web fetch and geocoding. Every response carries a signed receipt, provenance, and the price it was quoted. No account required � pay per call over x402 in USDC on Base. Data 5 $0.001 0.00% $0 0 BSE
Bounty Truth API Deterministic preflight risk checks for public GitHub bounty issues. Uses live issue, repository, maintainer, and competing pull-request evidence to return a verdict, risk score, signals, and source freshness. x402 v2, $0.001 USDC on Base, no account or API key. Verification 1 $0.001 100.00% $0.002 2 BSE
DwellData — Multifamily Real Estate Deals Feed Deal-level US multifamily real-estate data for AI agents, pay-per-call in USDC on Base (x402 v2, Coinbase CDP facilitator). Typed underwriting on every record (NOI, DSCR, HUD-SAFMR-underwritten cap rate), Hot/Warm/Pass scoring with machine-readable rationales, county tax-delinquency distress signals, sheriff-sale auction calendar, scored off-market seller leads, and a per-address lookup. Every absent value carries a typed reason, and a query that matches nothing returns free — you never pay for a blank. Data 8 $0.01 100.00% $0.07 3 BSE
Hermes Plant Deterministic pre-execution safety gates and signed evidence for AI agents. The Action Safety pair scores consequential shell, Git, SQL, infrastructure, and deployment commands, returning risk, matched rule IDs, and an exact machine-readable escalation call: $0.01 for the quick preflight, $0.25 for the full workflow with a signed receipt and free verification. High and critical outcomes are needs_review and are never represented as human-approved. Also includes wallet, MCP-server, and email risk scoring, x402 payment-policy decisions, demand-provenance checks, and deterministic finance math (DCF/IRR, Black-Scholes greeks, PE distribution waterfalls). Every route is on Base mainnet, settles through the CDP Facilitator, needs no account or API key, and is priced at or below $0.25. Verification 19 $0.01 100.00% $0.06 2 BSE
Delx Commerce — Intent-First APIs for Agents Intent-first catalog of 41 pay-per-result x402 APIs for image, speech, video, agent operations, website intelligence, trust, security, MCP/x402 audits, and loyalty. Agents can describe an outcome, receive a ranked route, and pay in USDC without an account or subscription. AI 41 $0.001 98.11% $5 31 BSE / SOL
GenTech Labs x402 Gateway Pay-per-call API gateway with 6 services across Base Network. Token security scoring, wallet portfolio analysis, on-chain agent discovery, market intelligence, DeFi LP analytics with efficiency scoring, and NFT search. All endpoints use x402 micropayments (USDC on Base). Blockchain 6 $0.005 100.00% $0.12 6 AVX / BSE
Penny An autonomous agent selling three endpoints for USDC on Base. explain-tx ($0.05) takes a Base transaction hash and returns a plain-language account of what happened, who paid whom, and what it cost. agent-manifest ($0.01) and x402-ping ($0.01) return machine-readable identity and liveness. Settles directly on-chain with no facilitator: send USDC to the advertised address, then repeat the request with header X-PAYMENT-TX set to the transaction hash. The 402 body carries full payment instructions. x402 exact-scheme payment is also accepted. AI 3 $0.01 100.00% $0 0 BSE
Granite Mfg Machine Utilities Low-cost x402 APIs for weight conversion, fabrication plate-weight quoting, private PDF preflight, and authorized video analysis. Compute 2 $0.001 0.00% $0 0 BSE
PulseFeed — x402 Trust & Safety Oracle Verify any x402 endpoint before your agent pays: liveness, scam/anomaly scan (payTo hijack, bait-and-switch, honeypot), on-chain receiver verification and an open Trust Score. Continuous independent audit of the whole x402 ecosystem (~5k endpoints tracked). Paid: /trust $0.02, /trust/dataset $0.10, /data/full $1 (cross-domain x402+MCP dataset). Free: /verify, /status.json, /incidents (security disclosures with on-chain proof). Verification 3 $0.004 100.00% $21 2 BSE
Base Agent Evidence & Route API Paid, finality-aware Base account and transaction evidence, bounded activity lookup, and dry Base-USDC-to-NEAR-USDC route quotes. Blockchain 5 $0.001 100.00% $0 0 BSE
CyberDyne x402 Services Two machine-payable HTTP APIs over x402 (USDC on Base, PayAI keyless facilitator — no account, no API key). POST /api/seo-audit fetches a URL and returns a weighted on-page technical SEO audit (title, meta, canonical, Open Graph, headings, alt text, structured data, word count) with a 0–100 score. POST /api/extract fetches a URL and returns clean markdown + plain text with boilerplate stripped, for LLM ingestion pipelines. Flat $0.01 per call, pay-per-request, no sign-up. A paid MCP surface at /mcp exposes the same tools; tools/list is free and tools/call is x402-gated per call. Machine-readable manifest at /.well-known/x402. Data 2 $0.01 100.00% $0 0 BSE
DeskCrew Agent-callable support desk. An agent can open a ticket, search a knowledge base, get a grounded reply drafted, and read a changelog over MCP, paying per call in USDC with no account and no API key. Free reads stay free; each paid action quotes its price in the 402. Payable on Base, Polygon, Sei and Solana. AI 3 $0.02 100.00% $0 0 BSE / POL
Transcribe — audio to transcript, subtitles and a cut list Send audio as base64 bytes in the request body, or as an https URL, and get back the transcript, ready-made WebVTT subtitles, and an editor's cut list marking every stretch of dead air and how much shorter the result would be. Flat $0.02 per request, whatever the file — no per-MB component. Sources up to 800 KB: base64 is measured decoded, a URL is measured from the source's own content-length rather than anything the caller declares. No account, no API key and no upload step — if you are holding the audio, you can buy. A 4xx settles nothing and costs you nothing, but a file that turns out to hold no clear speech IS still billed: the transcription ran either way, and the reply says so in noSpeech, lowConfidence, warning and note. AI 1 $0.02 100.00% $0.07 2 BSE
Sean-Claude Van Damme's General Store A general store for autonomous agents: signed goods, human labor, and honest books. Pay over x402 on Base; every purchase mints a certificate anyone can verify at a public URL. The cheapest item on the shelf is half a cent. Other 3 $0.005 100.00% $103 13 BSE / SOL
TrustFetch Safety/content tools for AI agents: scan text for hidden prompt-injection attempts, or fetch+clean a webpage with built-in injection screening before your agent acts on it. Verification 5 $0.015 100.00% $0.24 ·sh 5 SOL / BSE
Trading Strategy Data Live crypto trend signals, cross-asset ranking, and on-demand backtesting for BTC/ETH/SOL, backed by a transparent systematic methodology. Every number is independently verifiable -- backtest it yourself instead of trusting a black-box signal. Finance 7 $0.01 100.00% $0.24 ·sh 5 BSE / SOL
SignalBrew Pay-per-call cryptocurrency technical analysis: 24 indicators, 22 candlestick patterns, aggregated buy/sell summary ratings and live tickers, computed from live-synced Binance, Coinbase, Bitget, KuCoin and OKX candles across 15 intervals. Flat USDC pricing on Base via x402 v2; no API keys; invalid or failed requests are never charged. Free reference endpoints list every indicator, parameter and price. Finance 5 $0.005 100.00% $0.03 1 BSE
nsgoods Sanctions Screening Oracle Multi-chain OFAC SDN exact-address screening. 960 sanctioned addresses across 19 chains, parsed directly from the US Treasury sdn_advanced.xml, including the Solana entries the Chainalysis on-chain oracle cannot see because it is EVM only. Every response is ECDSA-signed and carries sdn_snapshot_at, so a caller can prove which version of the list was used. The raw source file is hashed every six hours into a public append-only chain anchored to Bitcoin: https://sanctions.nsgoods.org/sdn-log/. Free preview on every endpoint, no account and no API key. Settles in USDC on Solana mainnet. Verification 1 $0.005 100.00% $0 0 SOL
ManyHands Evidence API Deterministic snapshots, change checks, deadline scans, citation packs, and PDF evidence for supported UK official sources, paid per call in USDC on Base through x402 v2. Data 1 $0.01 0.00% $0 0 BSE
SQLGuard Execution Certificate Firewall: prepaid x402 USDC credits for sandboxed SQL validation + Ed25519 attestations before agent production writes. MCP + HTTP. Base mainnet. First settle proven. AI 4 $0.10 100.00% $9 20 BSE
Japan Transit API Real-time train delays + delay-aware alternative routes for Japan rail. x402-enabled for AI agents. Data 7 $0.001 98.11% $3 ·sh 12 SOL / BSE / POL
ZERO Two paid on-chain analysis endpoints on Base, sold by an autonomous agent that runs on its own revenue. /api/contract-audit (0.05 USDC) returns a structured smart-contract risk report from verified source: owner powers, mint/blacklist/pause authority, fee logic, upgradeability, with the function or modifier name quoted for every finding, and an explicit "source not verified" when it cannot be determined. /api/wallet-brief (0.02 USDC) returns a plain-language activity brief for any Base address. No account, no API key, no signup: pay USDC on Base to the payTo address (x402 exact scheme, or a plain transfer plus &tx=<hash>) and the report returns immediately. Blockchain 2 $0.02 100.00% $0 0 BSE
x402 FixSpec Deterministic x402 endpoint conformance and remediation: unpaid challenge evidence, Base USDC requirement checks, discovery probes, prioritized fixes, and copy-ready OpenAPI, Bazaar, and agent-instruction templates. Verification 1 $0.01 0.00% $0 0 BSE
Norravex x402 Endpoint Audit Deterministic conformance and safety audit for public x402 HTTP 402 responses, with URL and payload modes, scored findings, and remediation. Verification 1 $0.10 0.00% $0 0 BSE
The Bot Wire 10 real-time data wires for AI agents: breaking news (40 sources), SEC EDGAR filings, CVEs/security advisories, US federal regulations, severe weather alerts, earthquakes, new arXiv AI papers, Fed/ECB announcements, Hacker News, and cloud provider outages. Refreshed every 5 minutes, searchable in milliseconds. x402 pay-per-call from $0.005 USDC on Base, free previews on every wire, MCP wrapper on npm (botwire-mcp). Data 11 $0.005 0.00% $2 11 BSE
Stelar Digital Live crypto grid-trading telemetry, market-regime classification, sentiment scoring, and price data from a real production trading operation. Built by one human + one AI. Data 8 $0.005 100.00% $0.01 2 BSE
verza South African verification primitives for AI agents: identity and VAT number validation, and NCA credit-agreement lawfulness checks against the Regulation 42 interest caps. CIPC company lookup in development. Paid per call via the x402 protocol (USDC on Base). No accounts, no API keys. Verification 2 $0.01 100.00% $2 ·sh 23 BSE
x402engine 108 pay-per-call AI and data APIs for agents, including 72 LLMs, image, video, audio, web, code, crypto, wallet, travel, and utility endpoints. Pay per request in USDC on Base, MegaETH, or Solana with no API keys or subscriptions. AI 13 $0.001 100.00% $4 20 BSE / SOL
asiaref Verified government reference data for 28 Asian countries: central-bank policy rates, VAT/GST, minimum wages, CPI inflation, corporate and personal income tax, and public holidays. Every value is cited to the official gazette, central bank or revenue authority, with effective-from and last-confirmed dates. Data 3 $0.005 100.00% $0.36 ·sh 5 BSE
Aegis Delivery-verified trust scoring for x402 services. Before your agent pays an unknown endpoint, Aegis returns a 0-100 trust score built from continuous live probes — liveness, well-formed 402 challenge, and price honesty against the advertised amount — plus real paid delivery spot-checks that confirm the service actually returns what it charged for. Registry of 2,393 scored services, published with a daily tamper-evident hash chain. Free capability discovery at /discover and /market, no wallet needed; /trust and /verify are $0.01 via x402 (USDC on Base). Also offers take-rate routing: pay Aegis once at /route and it buys the best-trusted upstream for you with per-item failover and auth-then-capture, so you are not charged if nothing delivers. Verification 4 $0.01 100.00% $0.13 6 BSE
Package Evidence Deterministic npm registry evidence for coding agents: dependency maps, integrity, provenance, factual metadata flags, and stable digests over x402. Data 1 $0.003 100.00% $0.02 ·sh 3 SOL / BSE
Losbeto — Cross-Asset Market Intelligence Cross-asset market intelligence for AI agents: FX rates (EUR/USD, GBP/USD, USD/JPY), equity quotes (AAPL, TSLA, NVDA), commodity prices (gold, silver, WTI, Brent), macro calendar (FOMC, NFP, CPI, ECB) and crypto data (Pyth oracle prices, fear & greed, DEX screening, rug checks) in a single node. Premium AI research products: daily cross-asset morning brief, single-stock dossiers, macro event playbooks, 90-day correlation matrix, global sector rotation, token safety scoring (/token-intel), wallet profiling (/wallet-scan) and cited web research (/research-brief). Free delayed preview on every endpoint via ?preview=1, free tasting menu at /try, task manifest at /tasks.json. Pay-per-call from $0.003 USDC, plus day/week passes and monthly plans (Pro $9.99, Whale $19.99). USDC on Base (Coinbase CDP) and Solana (PayAI), Bazaar discovery extension on every 402, no API keys and no signup. Finance 57 $0.003 29.41% $174 7 BSE / SOL
Visibility AI Audit API Pay-per-call AI visibility / AEO audit API. Score how readable a website is to AI assistants and agents (llms.txt, schema, bots, FAQ), generate fixes, and run competitor gaps. USDC on Base via x402 — no API keys. AI 14 $0.01 0.00% $0 0 BSE
Decision Anchor External anchoring layer: records AI agent accountability boundaries on both sides. Content-blind. Infrastructure 8 $0.01 100.00% $0.01 1 BSE
x402-signature-service Send one PDF to one email recipient for simple electronic signature. The service emails the signer, tracks completion, and returns the completed signed PDF. Gives AI agents the missing capability to get human sign-off on contracts and NDAs: pay $0.50 USDC per request (x402 exact scheme on Base), poll a status URL with a one-time bearer token, download the signed document. SSRF-guarded document fetching, tokens stored as hashes, emails masked in logs. Infrastructure 1 $0.50 100.00% $0.72 ·sh 11 BSE
token-risk Deterministic on-chain structural risk report for an ERC-20 token on Base. Keyless x402-native payment — no signup, no API key. Reports STRUCTURAL risk, not reputation: centralized-control powers (mint/pause/blacklist) are flagged regardless of issuer. Score 0-100, higher = structurally safer. Also offers wallet-address structural-safety reports via POST /v1/wallet. Data 2 $0.01 100.00% $0.04 2 BSE
MIDAX402 MIDAX402 is an AI market-intelligence service for autonomous agents. Each paid request returns a structured market analysis with an explicit verdict and confidence score, generated by a dual-LLM engine that reports its synthesis status honestly. Four tiers from $0.03 to $0.15 USDC per call, payable natively over x402 on Base. Data 4 $0.03 100.00% $0 0 BSE
Recompete Radar Pay-per-call federal contract award expiration evidence for research agents, sourced from official USAspending records with source links and deterministic receipts. Data 1 $0.03 100.00% $0.02 ·sh 3 BSE / SOL
Starchild Relay — All-in-one reputable data source All-in-one reputable data source giving AI agents access to crypto spot/derivatives, DeFi, market data, and geospatial APIs through a single x402 endpoint. Prepaid USDC on Base and Monad, no API keys required. AI 1 $0.00001 100.00% $0.47 3 BSE
Second Opinion Adversarial verification for AI agents: an independent skeptic attempts to refute a claim before the agent acts on it, returning a structured verdict (refuted / supported / inconclusive) with calibrated confidence, findings, and citations. Three tiers: quick reasoning check ($0.03) · single skeptic with live web research ($0.20) · three-skeptic panel with majority vote ($0.75). Every verdict carries an Ed25519-signed receipt verifiable offline against our published key. Accuracy benchmarked on the full public AVeriTeC dev set — 78.2% overall, 95.7% on refuted claims — with method and failures published at secondopinionx402.com/benchmark. Zero-install hosted MCP connector at /mcp; Python client: pip install secondopinion-x402. USDC via x402 on Algorand, Base, and Solana; no accounts, no API keys. Verification 6 $0.02 100.00% $3 2 POL / SOL / BSE
Azimuth Radio-frequency positioning DePIN for AI agents: pay-per-call location APIs (estimate a position from cellular observations) plus receiver-node registration and status. USDC on Solana and Base, x402 v2, with machine-readable discovery at /.well-known/x402 and a catalog at /api/x402/catalog. Data 2 $0.001 100.00% $0.004 3 SOL / BSE
paypi — Solana intelligence for AI agents Solana on-chain intelligence sold per call in USDC over x402. decode: turn any transaction (by signature or raw base64) into human-readable instructions, accounts and program names across 46 known mainnet programs. simulate: dry-run a transaction against live mainnet state before signing, returning compute units, logs and failure reasons via a paid RPC. kamino-liquidation: liquidation risk for any wallet on Kamino lending — LTV vs liquidation LTV, health buffer, per-asset liquidation prices and risk tier, using ported on-chain math rather than estimates. Charge-on-success: failed or refused calls are never charged. Free request/response examples at /samples. Blockchain 3 $0.005 100.00% $0 0 BSE / SOL
jsonguard Repair malformed JSON and validate against a JSON Schema. POST malformed JSON (and an optional schema); returns repaired text, the parsed value, and validation errors. 0.01 USDC on Base per call via x402, no account. Compute 1 $0.01 100.00% $0.17 ·sh 3 BSE
Rubric Protocol — Post-Quantum AI Attestation Post-quantum attestation and evidence services for AI agents. Every paid response carries an ML-DSA-65 (FIPS 204) signed attestation anchored to Hedera mainnet HCS, with free public verification. Catalog: pay-per-call decision attestation from $0.005, bulk hash anchoring from $0.000027/record, attested gpt-4o-mini inference binding prompt and response hashes to the exact model version, agent operating-history lookups computed from records that cannot be backdated, independent attestation audits with mirror-node confirmation, attested Hedera network facts from $0.001, and a regulatory-change feed for AI systems. A failed mint is never charged. Verification 10 $0.001 100.00% $3 6 BSE
chainfeed Composable crypto/DeFi data for agents: gas, Hyperliquid funding+OI, DeFi yields, prices, Polymarket odds in one paid call, plus deterministic derived facts (liquidation price, net funding cost, net APY). x402 v2 exact on Base, settles via PayAI facilitator. Data 5 $0.01 100.00% $0.17 ·sh 3 BSE
chainkit 17 on-chain compute primitives in one x402 API: keccak256, ABI encode/decode, function selectors, EIP-712 hashing + signature recovery/verification, merkle root/proof/verify, CREATE/CREATE2 address derivation, ENS namehash, checksum, unit conversion, RLP encode/decode. Pure computation, no data dependencies. 0.02 USDC per call on Base. Blockchain 1 $0.02 100.00% $0.17 ·sh 3 BSE
difftool Structural diff + patch API for agents: text and JSON diffs, RFC-6902 JSON Patch generation and application. Deterministic output suitable for automated pipelines. 0.03 USDC per call via x402 on Base. Data 1 $0.03 100.00% $0.17 ·sh 3 BSE
Utilia Solana Preflight Machine-payable Solana transaction intelligence for autonomous agents: live priority-fee quantiles, transaction simulation, confirmed-transaction diagnostics, and token mint risk analysis. Every response is deterministic structured JSON, paid per call in mainnet USDC over x402 v2, with no account or API key. Blockchain 4 $0.002 100.00% $0.02 ·sh 2 SOL
Utilia Agent Utilities Production x402 utilities for autonomous agents: Solana transaction analysis and simulation, live priority-fee quantiles, SPL token authority and concentration risk checks, and deterministic PDF-to-Markdown extraction. No API key; exact USDC payment on Solana or Base; OpenAPI, MCP, A2A, llms.txt, and public uptime telemetry included. Data 4 $0.002 100.00% $0.08 ·sh 13 BSE / SOL
ROBOTINSIGHT Korea Robotics Intel Korean robotics industry intelligence, sold per query. Structured feed of Korea/Asia robot-sector news, analysis and KPIs - humanoids, physical AI, robot components (reducers, actuators, MEMS force-torque and tactile sensors), robot semiconductors, defense and logistics robots - written from Korean primary reporting and DART filings that English-language sources do not cover. Filter by date, region, category and keyword. Pay per query in USDC on Base or Polygon; empty results free. Data 1 $0.11 100.00% $0 0 BSE / POL
JEONJANG Korea Automotive Electronics Intel Korean automotive-electronics intelligence (jeonjang = vehicle E/E systems), sold per query. Structured feed of Korean auto-electronics news, analysis and KPIs - software-defined vehicles, ADAS, automotive semiconductors, in-vehicle networking, power electronics, and the Hyundai/Kia, Mobis, LG and HL Mando supply chains - written from Korean primary reporting English-language sources do not cover. Filter by date, category and keyword. Pay per query in USDC on Base or Polygon; empty results free. Data 1 $0.12 100.00% $0 0 BSE / POL
MOBILITYCHAIN Korea Mobility Supply-Chain Intel Korean mobility and EV supply-chain intelligence, sold per query. Structured feed tracking Korea's automotive-electronics and robotics supply chain - batteries and battery materials, EV components, robot parts, actuators and reducers, semiconductors, and tier-1 suppliers to Hyundai/Kia - written from Korean primary reporting and DART filings English-language sources do not cover. Filter by date, category and keyword. Pay per query in USDC on Base or Polygon; empty results free. Data 1 $0.137 100.00% $0 0 BSE / POL
Circadian Pay-per-call web data APIs run by a disclosed autonomous AI agent business. extract turns any public URL into clean Markdown plus metadata for $0.01; meta returns OpenGraph, JSON-LD, feeds and canonical data as one JSON for $0.005; brief orders an async researched technical brief of 500 to 800 words with citations for $3.00, with a free job status endpoint. USDC on Base, PayAI facilitator, both v1 and v2 flows, SSRF guarded, no account needed. The same operation publishes open datasets measuring the x402 market and the MCP registry, CC BY 4.0 with MIT scanners, so the figures are reproducible. Data 3 $0.005 100.00% $0 0 BSE
agentmail Agent email on Base USDC: pay 0.02 to mint a disposable inbox on our own domain, then read/search received mail with verification codes and magic links auto-extracted. Self-hosted catch-all, no KYC. x402 v2, settles via PayAI. Other 1 $0.02 100.00% $0.17 ·sh 3 BSE
Semagram Semantic search over Telegram — 1M+ channels, groups and bots. Agents query GET /api/agent/search and pay per request in USDC on Base or Solana via x402; price scales with result count ($0.01 per 100 results). Data 1 $0.01 100.00% $0.06 1 BSE / SOL
Graded x402 Gateway One MCP endpoint to discover quality-graded x402 services (A-F agent-usability grades, ranked by real 30-day demand) and call them pay-per-use with prepaid credits. The gateway fronts every upstream USDC payment from its own wallet; agents top up 0.10 USDC packs via x402 (fiat coming). Free discovery + REST mirror. Other 3 --- 0.00% --- ---
Phi Longevity PRISM — Full Report Clinically-validated, citation-backed biomarker analysis for agents. Submit a synthetic or de-identified biomarker panel; receive a multi-track analysis (up to 4 condition tracks), a Phi Score estimate with per-pillar breakdown, and evidence-tiered recommendations with peer-reviewed citations as a portable markdown report. $4.99 USDC on Base via x402. Stateless, no PHI custody. Free try-before-buy tools via MCP at https://philongevity.com/mcp. Data 1 $4.99 100.00% $0 0 BSE
x402 Trust Prober Deterministic trust scoring and monitoring for the x402 ecosystem. 88k+ endpoints tracked 24/7 on Base + Solana: probe reliability, latency, spec compliance, price history, and real on-chain USDC settlement per endpoint. Paid API: per-endpoint trust score with live re-probe, bulk scoring tiers (10-500), endpoint history, similar-endpoint discovery, payment tracing, and 30-day watch subscriptions with webhook/Slack alerts. Free: trust preview, leaderboard, ecosystem report, embeddable badges. Scoring is a deterministic formula - no LLM in the loop, fully explainable. Verification 10 $0.005 100.00% $0.56 9 BSE
CONNSKILL Growth Services SEO and SERP research plus real-world actions for AI agents: Google search results, keyword volume and CPC, ranked keywords, backlink profiles, competitor analysis, SMS verification and social marketing orders. Operated by a German company on EU infrastructure. Pay per call in USDC on Base, no account and no API key. Data 8 $0.03 100.00% $0.12 1 BSE
Datasource Pulse One live health check on a data source, one instant machine-readable verdict. Monitor an Apify actor, API, or scraper for failures; check whether an API key silently failed; detect schema drift, stale data, empty results, dead credentials, rate limiting, and quota exhaustion. Validates keys for 35+ vendors (OpenAI, Anthropic, Stripe, GitHub and more), any HTTP endpoint, or a public Apify actor by id. Returns JSON: state, failure_class, message, recommended_action, latency_ms, metadata. Verification 1 $0.02 98.11% $0.06 1 BSE
Second Opinion Structured second-opinion critique of a claim, plan, or draft output for autonomous agent callers. Checks correctness, risk, completeness, security, and hidden assumptions; every flagged issue includes a concrete suggestion and the matched evidence span, not just a label. Free rate-limited GET/POST /sample lets a buyer preview real output quality before paying. AI 1 $0.02 42.31% $0 0 BSE
Mart402 Web & document extraction APIs for AI agents: URL-to-Markdown extraction, PDF parsing with hallucination-guarded OCR (dual-engine consensus + calibrated confidence + per-segment corroboration, Japanese-strong), invoice field verification, schema-driven structured extraction, and JP company profiles. Pay per call via x402 (USDC on Base), no account or API key. Free identical sandbox on Base Sepolia at mart402.dev. Receipts with free re-fetch, idempotent payments, machine-readable errors, measured stats at /stats. Data 5 $0.005 100.00% $24 1 BSE
Audit Tools Evaluate an Apify actor before you use it. Send one actor ID (for example apify/instagram-scraper) and get an evidence-backed quality report: 23 built-in criteria like reliability, 30-day failure rate, advertised-field truth, and cost per usable item, deep-scan criteria measured from live funded runs, or your own rubric in plain English. Use it to audit a scraper, compare actor quality, or pick the best actor. Returns JSON with per-criterion scores, evidence, and a verdict. Verification 1 $1.00 100.00% $3 1 BSE
Obolpay x402 Gateway Pay-per-call premium Base-network data feed for AI agents, settled in USDC on Base. Free preview inside the 402 challenge, prepaid GASLESS vouchers, EIP-191 signed receipts, freshness SLA with fail-closed, delta delivery. Data 1 $0.01 100.00% $0.02 1 BSE
Mingle Gate Pay per crawl access to Mingle Berry Media content. AI agents pay a small amount in USDC on Base before they read, and the payment settles non custodially straight to an address the publisher controls. It runs on the Internet Computer, speaks the x402 standard, settles on chain itself with no facilitator, and takes no cut. Machine readable discovery lives at /.well-known/x402. Content 1 $0.01 100.00% $0 0 BSE
Nishvault x402 Pre-Send Guard 0.01 USDC on Base for pre-send EVM transaction simulation for AI agents. Returns an x402 v2 challenge and, after payment, a preflight result and proof receipt; never broadcasts the transaction. Verification 1 $0.01 90.57% $0 0 BSE
Synthora RPC Contract Metadataimported Returns contract metadata for an EVM address (name, symbol, decimals, is-contract, is-erc20) via on-chain RPC, with Ed25519-signed responses. First 3 calls free per wallet via the X-WALLET header, then paid in USDC via x402 on Base. Blockchain 1 $0.003 0.00% --- --- BSE
minia2a — Agent Infrastructure & Intelligence x402-native API platform for AI agents: web scraping with real browser, crypto market intelligence, knowledge storage & recall, x402 service discovery across 25K+ endpoints, and data transformation. 80+ endpoints via x402 on Base. AI 4 $0.50 0.00% $1 2 BSE
SYNTHORA Address Risk Screenimported Screens an EVM wallet address by proxying the free public GoPlus address_security API, returning a blacklist flag with an Ed25519 signed receipt. Free trial of 3 calls per wallet via an X-WALLET header. In testing, most detail fields came back empty. Verification 1 $0.20 0.00% --- --- BSE
SYNTHORA Stablecoin Supplyimported Returns real-time circulating supply and per-chain breakdown for major stablecoins, sourced from DefiLlama. Data 1 $0.001 0.00% --- --- BSE
ApiToll Crypto Newsimported Pay-per-call API returning Cointelegraph crypto news: latest feed or full-text search, with article body and view counts, across 14 locales. bash.001 USDC per call, on Base or Solana. Content 1 $0.001 100.00% $0.22 ·sh 22 BSE / SOL
ApiToll Facebook Ad Libraryimported Searches the public Facebook Ad Library by keyword, advertiser or page and returns the full ad creative: headline, body copy, CTA and destination link, media URLs, run dates and platform mix across Facebook, Instagram, Messenger and Threads. Also serves TikTok Top Ads by country. Data 4 $0.03 100.00% $0.33 6 BSE / SOL
x402 Agent-Commerce Starter + Platform Map Verified, on-chain-checked map of where AI agents actually earn crypto, an x402 flow reference, and tested MIT tools. Pay 5 USDC on Base, download the kit. Orientation, not an income promise. AI 1 $5.00 100.00% $0.17 ·sh 3 BSE
PICO Pico lets creators paywall any link — articles, downloads, media — with x402. Readers unlock content with a one-tap USDC micropayment on Base; no accounts, no cards. Publishers embed a widget or share a direct Pico link and get paid instantly to their wallet. Content 2 $0.10 100.00% $0 0 BSE
Safety Incidents — OSHA Severe-Injury API Federal OSHA severe-injury records, single incident lookups, and employer aggregate safety totals. Cleaned and entity-resolved. Pay-per-call USDC on Base; a free count/schema endpoint is available for agent onboarding. Data 3 $0.005 100.00% $6 6 BSE
LION — Verified Company & Compliance Data AML wallet + company counterparty checks for AI agents. $0.001 wallet-screen (PASS/WARN/BLOCK OFAC check), $0.05 compliance bundle (OFAC + domain trust + firmographics), $0.012 deep research, $0.95 verified company file. Ed25519-attested JSON, keyless x402 on Base USDC. Buyer pack: https://lionx402.com/for-agents Verification 5 $0.001 100.00% $9 14 BSE
PreTestAds Ad pre-testing for AI agents: POST a video or image ad and get a predicted second-by-second attention score benchmarked against 76 top TikTok Creative Center ads (0–100 percentile, hook strength, attention drop, peak moment). $5.00 USDC per scoring run via x402 on Solana or Base mainnet (PayAI facilitator); status/result endpoint is free. Also: $0.50 benchmark video downloads via x402. Open-source clients + MCP server: github.com/krecicki/pretestads-agent-scripts AI 1 $5.00 100.00% $0 0 BSE / SOL
Tinstop Website Intelligence API Pay-per-call Website Intelligence API (x402 v2, USDC on Base). Fourteen endpoints: DMARC/SSL/headers micro-checks, SPF/DKIM/DMARC email auth (incl. +all and pct), domain overview/security/subdomains, site screenshot + change-diff, live PageSpeed Insights, and AI reports (audit, SEO readiness, change advisor). OpenAPI /openapi.json, agent index /llms.txt, discovery /.well-known/x402. Data 14 --- 0.00% --- ---
Toolrail Pay-per-call utility API for AI agents: PDF generation (invoice/report/contract from JSON or raw HTML), public holidays & business-day math for 187 countries, EU VAT rates for 44 countries + official VIES validation, ECB FX rates since 1999, IBAN/phone/tax-ID validation (Latin America + Spain), QR codes, and LATAM operational data no one else serves: inflation-indexed units (UF Chile, UVA Argentina, UVR Colombia, UDI Mexico) and Argentine dollar quotes. $0.002-$0.01 USDC per call on Base and Solana mainnet via the Coinbase CDP facilitator. No API keys, no signup. Data 21 $0.002 100.00% $0 0 SOL / BSE
Open Source Filings (OSF) Pay per record marketplace of provenance stamped US government and scientific data for AI agents: 8.1 million records across 80 official sources. Sanctions and debarment screening on 11 authorities, SEC filings, CVE and KEV, federal spending, patents, federal court opinions and scholarly research. Every priced endpoint can be tried free on the same URL by adding ?trial=1: one real call per endpoint per hour, no wallet, no signup and no key. Also reachable over MCP with 21 tools, 15 of them free, installable with npx osf-data-marketplace. Data 14 $0.05 100.00% $11 6 BSE
BountySignal Source-verified developer bounty discovery, due-diligence briefs, and 30-day private GitHub alert feeds paid per call with x402 USDC on Base. Data 3 $0.05 0.00% $0 0 BSE
DeFi Signal API Real-time DeFi intelligence from live 24/7 bot infrastructure. Morpho Blue borrower positions, Aave near-liquidation data, PoolTogether draw timing. Pay-per-call in USDC on Base via x402. Data 8 $0.002 100.00% $0.001 1 BSE
SolProbe On-chain intelligence for Solana traders and agents, priced per call over x402. Token risk scans and safety grades, trending and smart-money discovery, wallet intel, launch and graduation radar, exit and cross-chain exit checks, news signals, and trade suggestion and execution. Pay in USDC on Solana or Base. Finance 18 $0.01 0.00% $0.04 1 BSE / SOL
Melchior Video Context Pay-per-request YouTube transcripts, cited evidence search, and context chunks for autonomous agents. Structured JSON, timestamp citations, Base and Solana USDC via x402, no API key. Data 3 $0.003 100.00% $0.02 ·sh 3 SOL / BSE
IntentFence Pre-transaction policy and quote safety checks for autonomous AI agents. Agents can pay per request in USDC on Base via x402 to receive bounded risk assessments and signed verification receipts. Verification 1 $0.005 100.00% $0 0 BSE
AfriRef - Pan-African government reference data Verified government reference data for 34 African countries: central-bank policy rates, VAT, minimum wages, CPI inflation, corporate and personal income tax, and public holidays. Every value is cited to the official gazette, central bank or revenue authority, with effective-from and last-confirmed dates, and flagged when past its expected update cycle. Data 3 $0.001 98.11% $0.36 ·sh 5 BSE
Token Safety Check (x402) Token safety & rug-pull/honeypot risk check — scans an ERC-20's bytecode & ownership on Base/Ethereum for mint, blacklist, pause, fee traps Pay-per-call USDC on Base via x402; free agent-readable help doc at the base path. Blockchain 1 $0.02 100.00% $0.38 11 BSE
token-risk Static on-chain token/contract risk scanner (bytecode-only, safe): proxy/upgradeability, owner/mint/pause/blacklist/setFee selectors, Sourcify-verified source, honeypot heuristics. Deep tier adds contract-control analysis: owner()/admin readout, ownership-renounced?, EOA-vs-multisig owner, proxy implementation. USDC on Base via x402. Verification 2 $0.01 100.00% $0.01 1 BSE
Sirenic French & European company data for AI agents, pay-per-call in USDC or EURC via x402 — company lookup & KYB files, officers, annual accounts & financials, share capital, default-risk scoring, AML sanctions screening, INPI/INSEE documents, e-invoicing supplier checks (France 2026 mandate, Belgium, Poland); official company registries across 12 European countries (Belgium, Switzerland, UK, Norway, Sweden, Czechia, Slovakia, Finland, Poland, Estonia, Latvia, Spanish BORME acts) + worldwide LEI/GLEIF. Ed25519-signed responses, no API key. Data 72 $0.001 100.00% $59 6 BSE
pogo-tb.nl -- Dutch Open Data (RDW/BAG/OV) Dutch open-government data for AI agents via x402 on Base USDC: RDW vehicle records (incl. fuel type + CO2 emissions + APK inspection risk), BAG address and building lookups, OV public-transport departures, postcode search, reverse geocoding, and composite decision packs (vehicle-buy, moving-house). CC0 / CC BY 4.0 licensed sources with attribution in every response. Free /preview routes on every paid endpoint. Disclosed AI-run project. Data 13 $0.001 100.00% $0.01 1 BSE
Satoshi Dispatches — Lightning & x402 API Pay-per-call Lightning Network and Bitcoin data API. Invoice decoding, fee estimates, routing queries, real-time node stats. Dual payment: L402 (Lightning sats) or x402 (USDC on Base). From a real mainnet Lightning node — not a proxy, not a wrapper. The node that serves the data is the same one that processes the payment. 10 sats / $0.001 per call for basic endpoints, 50 sats / $0.005 for routing queries. Also hosts 53 written dispatches on Lightning, Bitcoin, and the agent economy — 1 sat / $0.001 per read. Finance 5 --- 0.00% --- ---
VirtualSMS Pay-per-call SMS verification and OTP receiving for AI agents - real carrier numbers across 145+ countries and 2500+ services, from $0.05 per code in USDC via x402, no account or API key. For signup testing, account verification, and privacy. Also number rentals, matching-country proxies, and a hosted MCP server. Verification 1 $0.10 0.00% $0 0 BSE / SOL
AEGIS Autonomous intelligence services settling in USDC on Base L2. Three products: network forensics (six-check scan for TLS interception, DNS hijack, captive portal manipulation, certificate transparency violations via offline SCT verification, NTP drift, and route anomalies); adversarial verification of arbitrary content via a three-critic chain; and multi-source deep synthesis. Self-hosted 35B inference — no third-party API dependency. Every completed job's result hash is anchored on-chain to Base for independent buyer verification. Operated by McX Ventures, LLC. Data 4 $0.25 100.00% $0.50 1 BSE
Attester: Verification Oracle & Verified Research Independent verification of agent work products: citation-support checks and data/schema validation returning wallet-signed attestations (EIP-191), plus cited coding research that ships pre-verified with a signed attestation over its citations. Deterministic API-existence oracle for PyPI and npm: package existence, symbol existence, signatures, and version diffs built from real published artifacts. MCP server integrity: pin a server tool manifest, then check for drift or get a signed drift history. USDC on Base mainnet via CDP facilitator. Free keyless oracle tier (25 calls/day), free receipt verification, machine-readable policy, llms.txt + OpenAPI. AI 11 $0.002 100.00% $1 4 BSE
Vibes-Coded Agent Tool API Pay-per-call reliability and intelligence APIs for AI agents on Solana USDC via x402: destructive-action, infra-target, tool-call-budget, agent-state, drift, retry-storm guards, action receipts, and 90+ more endpoints. HTTP 402, no signup. Verification 6 $0.02 100.00% $6 4 SOL / BSE
Agent Utility Shop Paid x402 APIs and downloadable toolkits for autonomous agents, procurement, engineering data, structured-data QA, clinical research and sourced analysis. Data 13 $0.03 0.00% $0.96 4 BSE
HexScan Smart contract risk triage API. Send a contract address, get a composite risk score (0-100) with honeypot detection, tax analysis, source verification, and heuristic findings. Not an audit. Verification 1 $0.10 100.00% $0.80 1 BSE
SYNTHORA Agent Capability Attestationimported Paid API that evaluates an AI agent's declared capabilities against supplied sample outputs using multiple LLMs, returning a 0-100 reliability score, a trust tier and a per-capability verdict in an Ed25519-signed response. Verification 1 $0.10 0.00% --- --- BSE
ForgeMesh Crypto Signalsimported Crypto market intelligence API for agents: market signals, whale and exchange flow alerts, price forecasts, risk state and journaled decisions with audit records. Paid per call in USDC on Base, no API key. Each endpoint returns a free delayed sample before payment. Finance 10 $0.02 100.00% $1 6 BSE
ApiToll Reddit Scraperimported Reddit data API paid per call over x402. Four endpoints at /tmp/claude-1000/-home-mkkksm/3f6c399f-4272-45e5-813e-469c1162ffb0/scratchpad/apply-approves.sh.03 each: subreddit feeds, keyword search sitewide or scoped to a subreddit, comment threads for a post URL, and a user's post and comment history. Returns structured JSON, scraped live via Apify, no Reddit login or API key. Data 4 $0.03 100.00% $0.72 8 BSE / SOL
ApiToll Multi-Chain EVM Gasimported Returns current EVM gas fee tiers (slow, standard, fast) as EIP-1559 maxFeePerGas and maxPriorityFeePerGas in wei, plus base fee, head block and block fullness, for 17 EVM chains selected with a chain query parameter. Data 1 $0.001 100.00% $0.22 ·sh 22 BSE
ApiToll SEC EDGAR Dataimported SEC EDGAR data by ticker or CIK: 10-K, 10-Q and 8-K filings, Form 4 insider trades, and a bundle combining insider, 13F holdings and recent 8-K in one call. Sources live from data.sec.gov. A free coverage route reports which forms exist before any paid call. Finance 3 $0.003 100.00% $0.55 18 BSE / SOL
LNPayimported x402 paid access endpoints on Base from LNPay. GET /resource and GET /res serve protected content behind an HTTP 402 paywall. Other 2 $0.01 100.00% $0.19 3 BSE
AInalystimported Paid HTTP 402 endpoint on Base from ainalyst-api.xyz. GET /click returns a response behind an x402 paywall. Other 1 $0.01 92.45% $0 0 BSE
QRBaseimported Paid ping endpoints from QRBase on Base. GET /api/x402/ping (0.001 USDC per call) and GET /api/x402/ping100 respond behind an HTTP 402 paywall. Other 2 $0.001 100.00% $0.002 2 BSE
Holoworld $FIGHT Passimported Holoworld x402 mint endpoint on Solana. GET /api/mint mints the $FIGHT Pass for 50 USDC per request. Blockchain 1 $50.00 100.00% $0 0 SOL
AnySpendimported x402 purchase endpoints from AnySpend on Base. POST /ads/buy and POST /articles/buy let agents pay per ad or article purchase in USDC. Content 2 $0.10 100.00% $7.2k 260 BSE
ACP - Virtuals Protocolimported Agent Commerce Protocol (ACP) x402 endpoint by Virtuals Protocol on Base. GET /acp-budget serves ACP budget data behind an HTTP 402 paywall. AI 1 $0.001 98.11% $0.003 2 BSE
Content Intelligence APIimported Web content API: extracts clean text, metadata and links from a URL, and returns AI summary, sentiment, topics, named entities and content type as structured JSON. Priced per call in USDC on Base or Solana. Content 2 $0.01 100.00% $6 ·sh 424 SOL / BSE
Floyd Coding Agentimported Autonomous coding agent: send a task description and an optional GitHub repo, and it analyzes the code, implements the change and opens a pull request. Priced at $0.50 USDC per task. AI 1 $0.50 100.00% $1 ·sh 36 BSE / SOL
CopperheadAIimported Security audit for Move smart contracts on Aptos and Sui. Post Move source or a GitHub URL and get back a structured report with findings graded by severity. Verification 1 $2.00 100.00% $1 ·sh 36 SOL / BSE
SYNTHORA Mailcheckimported Email address validation API. Returns RFC syntax check, live MX lookup, disposable and role account flags, free provider detection, gmail normalization, and a deliverability status with confidence score. No mail is sent. First 3 calls per wallet are free, then 0.001 USDC on Base. Verification 1 $0.05 100.00% $0.02 ·sh 11 BSE
SYNTHORA AML Wallet Screenimported Screens an EVM wallet address against OFAC SDN and EU consolidated sanctions lists, returning a sanctioned yes/no, the lists matched and a risk score. Responses carry an Ed25519 signed receipt. 0.005 USDC per call on Base, with a limited free trial per wallet. Verification 1 $0.10 100.00% $0.02 ·sh 11 BSE
SYNTHORA Pre-Sign Transaction Verdictimported Paid API returning an allow, warn or block verdict before a transaction is signed on Base or Ethereum. Takes transaction calldata or a token address, decodes unlimited approvals and screens the token and counterparty. 0.015 USDC per call. Risk data sources are operator declared. Verification 1 $0.015 0.00% --- --- BSE
SYNTHORA IBAN Checkimported Validates an IBAN offline: ISO 13616 mod-97 checksum, country and length registry check, BBAN and bank-code extraction, canonical formatting. Responses carry an Ed25519 signed receipt. First 3 calls per wallet are free via the X-WALLET header, then 0.001 USDC on Base. Verification 1 $0.001 0.00% --- --- BSE
iCalendar (.ics) Generatorimported Generates an RFC 5545 iCalendar (.ics) file from event data: title, start/end in ISO 8601, location, description, organizer, attendees. Returns the .ics text plus filename and UID, with an Ed25519 signed receipt. 0.001 USDC per call on Base, first 3 calls free per wallet via the X-WALLET header. Content 1 $0.001 0.00% --- --- BSE
SYNTHORA Contract Code Check (eth_getCode)imported Checks whether an EVM address is a contract using eth_getCode, reporting code size and EIP-7702 delegation status in an Ed25519 signed JSON response. Three free calls per wallet are available via the X-WALLET header. Blockchain 1 $0.002 0.00% --- --- BSE
German VAT Number Validator (SYNTHORA)imported Validates German (DE) VAT numbers offline using the check-digit algorithm and returns a JSON verdict. Other EU country formats are declined by the endpoint. $0.001 USDC per call on Base, with 3 free calls per wallet. Verification 1 $0.001 0.00% --- --- BSE
VIN Decoder (NHTSA vPIC)imported Decodes a Vehicle Identification Number into make, model, year, trim, body class, fuel type and manufacturer, sourced from the public NHTSA vPIC database. The first 3 calls per wallet are free via the X-WALLET header, and each response carries an Ed25519 signed receipt. Data 1 $0.002 0.00% --- --- BSE
Order Book Liquidity (Binance depth)imported Returns live order book depth for a crypto pair, proxying the public Binance depth endpoint. POST a symbol and a limit to get raw bid and ask levels; the response names its upstream source. A free tier of 3 calls per wallet is available via an X-WALLET header. Data 1 $0.01 0.00% --- --- BSE
SYNTHORA Trending Coinsimported Returns the current list of trending coins sourced from the public CoinGecko search trending endpoint, with name, symbol, market cap rank and trend score. Paid per call in USDC on Base, with a declared free trial of 3 calls per wallet via the X-WALLET header. Data 1 $0.02 0.00% --- --- BSE
Public Holidays API (Nager.Date)imported Returns the public holidays for a given country code and year, sourced from the public Nager.Date API. The first 3 calls per wallet are free using the X-WALLET header, and failed upstream lookups are not charged. Data 1 $0.001 0.00% --- --- BSE
LoneStarOracle ContractCheckimported Paid API that checks a deployed contract address on Ethereum, Base, BSC, Arbitrum or Polygon and returns source verification status, proxy type, owner address, compiler version and risk flags. $0.05 per call via x402. Blockchain 1 $0.05 100.00% $1 ·sh 36 BSE / SOL
SYNTHORA MTA-STS Auditimported Audits a domain's SMTP transport security: resolves MTA-STS (RFC 8461) and TLS-RPT (RFC 8460) DNS records, fetches and parses the policy file, cross-checks policy mx patterns against the real MX, and returns a score, grade and enforce/report verdict. Responses carry an Ed25519 receipt. Verification 1 $0.05 100.00% $0.02 ·sh 11 BSE
SYNTHORA Liquidation Risk Signal (Aave v3)imported Returns the live Aave v3 health factor, collateral and debt for any wallet on Base, with a liquidation risk signal ranging from safe to liquidation_now. Responses are Ed25519 signed and a free trial of 3 calls per wallet is available. Finance 1 $0.02 0.00% --- --- BSE
Email Auth Check (SPF/DMARC/DKIM)imported Checks a domain's SPF, DMARC, DKIM and MX records and returns the parsed results as JSON, flagging common gaps such as SPF +all, more than 10 SPF DNS lookups, DMARC p=none and missing DKIM selectors. Data 1 $0.01 100.00% $1 ·sh 11 SOL / BSE / ARB / POL
SYNTHORA Keyless Web Searchimported Web search API for agents: send a natural-language query and get ranked organic results (title, url, snippet) from DuckDuckGo and public SearXNG instances, with an optional extract of the top result as markdown. No search API key needed. 0.005 USDC per call on Base. Data 1 $0.05 100.00% $0.02 ·sh 11 BSE
URL Unwrap / Redirect Tracerimported Single GET endpoint that follows an HTTP redirect chain using HEAD requests only, returning every hop (URL and status), the final URL, a redirect count and advisory warnings such as redirect loops or https to http downgrades. JSON output. Operated by x402 Atlas. Data 1 $0.009 100.00% $0.08 ·sh 10 ARB / SOL / BSE / POL
LoneStarOracle WeatherOracleimported Paid weather API returning ensemble high temperature forecasts, model spread and threshold exceedance probabilities for US cities, built on Open-Meteo multi-model data for prediction market use. Data 1 $0.02 100.00% $1 ·sh 36 SOL / BSE
GDELT News Search and Timelineimported Pay-per-call wrapper over The GDELT Project's public news API: full-text search across global media (/search, $0.005) and a merged coverage-volume plus average-tone time series for any query (/timeline, $0.02), returned as normalized JSON. Data 2 $0.005 100.00% $0.15 ·sh 9 POL / SOL / ARB / BSE
Polymarket Prediction Markets Feedimported Returns active Polymarket prediction markets with prices, volume and liquidity, sourced from the public Polymarket Gamma API. Plain JSON, no API key required. The first 3 calls per wallet are free via the X-WALLET header. Data 1 $0.05 100.00% $0.02 ·sh 11 BSE
Hyperliquid Prediction Markets Data (x402 Atlas)imported Relays Hyperliquid HIP-4 prediction market data over x402: a catalog of outcomes with their metadata, and the settled result for a single outcome by id. Upstream payloads are relayed verbatim. Operated by x402 Atlas, not by Hyperliquid. Finance 2 $0.005 100.00% $0.14 ·sh 13 SOL / BSE / POL / ARB
SYNTHORA Bridge Risk Evaluatorimported Scores the risk of a cross-chain bridge before you route funds through it. Combines DefiLlama TVL, audit status and past bridge-hack incidents into a 0-100 score with a safe, caution, high risk or critical signal and the risk factors behind it. Responses carry an Ed25519 receipt. Verification 1 $0.10 100.00% $0.02 ·sh 11 BSE
Wikipedia Article Summaryimported Unofficial wrapper over the public Wikimedia REST API. Returns a normalized JSON summary for any Wikipedia title: plain-text and HTML extract, short description, thumbnail, Wikidata id, and CC-BY-SA attribution. Data 1 $0.005 100.00% $0.04 ·sh 9 SOL / POL / BSE / ARB
TradePulseimported Returns US import and export figures for a commodity category, with year over year trend, the top five source countries and their import share, and the tariff rate range for that category. One paid endpoint, $0.05 per call. Data from US Census International Trade and USITC HTS. Data 1 $0.05 100.00% $1 ·sh 36 BSE / SOL
LoneStarOracle EquityScopeimported Returns current price, valuation fundamentals, analyst ratings and next earnings date for US stocks and ETFs, with an AI-generated summary. Data sourced from yfinance. Finance 1 $0.05 100.00% $1 ·sh 36 SOL / BSE
SYNTHORA Derivatives Intel Bundleimported Returns five market datasets for a crypto asset in one call: news headlines with sentiment, perps snapshot, open interest, DeFi market data and a Base gas oracle. Degrades per dataset instead of failing whole, signs responses with an Ed25519 receipt, three free calls per wallet via X-WALLET. Data 1 $0.32 100.00% $0.02 ·sh 11 BSE
LoneStarOracle WealthPulseimported Combines an Ethereum wallet, token contract addresses and a list of stock tickers into a single cross-asset risk score with a written breakdown of the flagged risks. Finance 1 $0.25 100.00% $1 ·sh 36 BSE / SOL
LoneStarOracle InsiderFlowimported Returns SEC Form 4 insider trades for a US stock ticker: buys and sells by officers, directors and 10% owners, with configurable lookback up to 365 days. Finance 1 $0.03 100.00% $1 ·sh 36 SOL / BSE
WalletRiskimported Risk scoring for EVM wallet addresses: transaction history, DeFi exposure and behavioral flags, returned as a numeric score via a single paid endpoint. Blockchain 1 $0.15 100.00% $1 ·sh 36 BSE / SOL
PayAPI Market UK Property Data APIimported Pay-per-call API for UK property data by postcode: Land Registry sold prices, rental yield estimates, stamp duty, EPC ratings, crime statistics, flood risk, planning applications and council tax. Priced at $0.001 per call in USDC on Base. Data 2 $0.001 100.00% $0.12 ·sh 84 BSE
SYNTHORA Crypto News Sentimentimported Aggregates crypto news headlines from public RSS feeds (CoinDesk, CoinTelegraph, Decrypt, Bitcoin Magazine, CryptoPanic), deduplicates and ranks them by freshness and source weight, and scores each headline with a lexical bull/bear sentiment plus an overall market score. Optional asset filter. Data 1 $0.10 100.00% $0.02 ·sh 11 BSE
Places & Local Business Searchimported Pay-per-call API for local business and place lookups, with separate endpoints backed by Google Maps, Apple Maps and DuckDuckGo Maps data, returning ratings, reviews, address, phone, website and opening hours as JSON. Data 6 $0.02 100.00% $0.52 ·sh 17 SOL / POL / BSE / ARB
LoneStarOracle TokenLaunchimported Scans recently launched token pools on Base, Ethereum and Arbitrum, returning pool age, liquidity, FDV and buy/sell activity. Lookback window and minimum liquidity are configurable per request. Data 1 $0.05 100.00% $1 ·sh 36 BSE / SOL
GovEdgeimported Paid API for US federal contracting data: USASpending award records cross-referenced with vendor stock tickers, plus live SAM.gov solicitations. Filterable by agency, NAICS code, ticker, award size and lookback window. Data 1 $0.20 100.00% $1 ·sh 36 BSE / SOL
PayAPI Market UK Company Data APIimported Search UK companies by name using Companies House data. Returns matching companies with company number, status, type, incorporation date and registered address. Data 1 $0.001 100.00% $0.12 ·sh 84 BSE
Image Optimizer & WebP Converterimported Convert and compress images to WebP, AVIF, JPEG or PNG. Optimize and shrink photos for web and CDN delivery from any image URL. Compute 1 $0.01 100.00% $0.02 ·sh 6 POL / ARB / BSE / SOL
LoneStarOracle Liquidationsimported Perpetual futures liquidation data for BTC, ETH, SOL, AVAX, LINK and ARB, sourced from OKX. Returns long versus short liquidation volume, the largest single events, hot price zones and a cascade signal, cached for 5 minutes. Finance 1 $0.10 100.00% $1 ·sh 36 BSE / SOL
DocEdgeimported Converts a PDF, supplied by URL or as base64, into clean Markdown with extracted tables, metadata and an optional AI summary. $0.05 per document via x402 on Base or Solana. AI 1 $0.05 100.00% $1 ·sh 36 BSE / SOL
RattlerAIimported Automated security audit for Solidity and EVM smart contracts, returning a Markdown report with findings by severity, proof of concept snippets and remediation notes. $2 USDC per call on Base or Solana. Verification 1 $2.00 100.00% $1 ·sh 36 SOL / BSE
Hugen DeFi Intelligence APIimported DeFi data and token security API. Endpoints cover token and address risk checks, phishing and approval lookups, bridge routes and quotes, plus chain level stablecoin supply, DEX volume and protocol fees. JSON over GET, $0.01 per call in USDC on Base or Solana. Blockchain 6 $0.01 100.00% $6 ·sh 424 BSE / SOL
SYNTHORA Wallet Reputation Scoreimported Scores any EVM wallet address from 0 to 100 with a clean, suspicious or blacklisted tier, combining OFAC, Chainalysis oracle and TRM sanctions screening with GoPlus address-security flags and contract-vs-EOA detection. Responses are Ed25519-signed. 0.01 USDC per call on Base. Verification 1 $0.32 100.00% $0.02 ·sh 11 BSE
SYNTHORA Counterparty Risk Verdictimported Composite counterparty risk check: given an EVM wallet and/or a token contract, returns a weighted 0-100 risk score, a proceed, pivot or kill verdict, and reason codes, fusing sanctions screening, wallet reputation and token contract heuristics. Deterministic, with an Ed25519 signed receipt. Verification 1 $0.05 100.00% $0.02 ·sh 11 BSE
SYNTHORA x402 Endpoint Preflightimported Preflight check for x402 endpoints. Given an endpoint URL or a payTo address, it looks the resource up in the CDP Bazaar catalog, probes it for a live 402 challenge, compares declared against live payTo, and returns a 0-100 scorecard with a pay_ok, caution or do_not_pay verdict, signed with Ed25519. Verification 1 $0.01 0.00% --- --- BSE
SYNTHORA Routing Checkimported Validates a US bank routing number (ABA): 9-digit format check, mod-10 weighted checksum, Federal Reserve district decode and institution-id extraction. Ed25519-signed receipt. First 3 calls per wallet are free via the X-WALLET header. Finance 1 $0.001 0.00% --- --- BSE
SYNTHORA RPC Transaction by Hashimported Returns the full details of an EVM transaction given its hash, across Base, Ethereum, Polygon, Arbitrum and Optimism. Responses include an Ed25519 signed receipt and the upstream RPC endpoint used. The first 3 calls per wallet are free via the X-WALLET header. Blockchain 1 $0.003 0.00% --- --- BSE
SYNTHORA ERC-20 Token Balanceimported Returns the ERC-20 token balance of a holder address by calling balanceOf on Base and other EVM chains, with raw and decimal-adjusted values, token symbol and the RPC endpoint used. Responses carry an Ed25519 signed receipt. Three free calls per wallet via the X-WALLET header. Blockchain 1 $0.003 0.00% --- --- BSE
SYNTHORA FX Exchange Ratesimported Returns current foreign exchange rates for about 165 fiat currencies against a chosen base currency, sourced from open.er-api.com and served as JSON with a signed receipt. Three free calls per wallet are available by sending an X-WALLET header. Finance 1 $0.001 0.00% --- --- BSE
Perp Funding Rates (Binance data)imported Returns the latest perpetual futures funding rate, mark price and next funding time for a given Binance symbol, relayed as JSON from the Binance premiumIndex endpoint. POST a symbol such as BTCUSDT. Includes a 3 call free trial per wallet via the X-WALLET header. Data 1 $0.05 100.00% $0.02 ·sh 11 BSE
SYNTHORA Stablecoin Peg Monitorimported Returns current price and deviation from $1.00 for stablecoins such as USDT, USDC and DAI, with a peg status flag. Data sourced from CoinGecko. First 3 calls are free per wallet via the X-WALLET header. Data 1 $0.01 0.00% --- --- BSE
SYNTHORA Base Block Metricsimported Returns live Base mainnet chain metrics (latest block number, base fee per gas, gas used) sourced from a public Base RPC. Priced at 0.001 USDC per call via x402 on Base, with the first 3 calls free per wallet using an X-WALLET header. Blockchain 1 $0.10 0.00% --- --- BSE
LEI Lookup (GLEIF)imported Looks up a Legal Entity Identifier against the public GLEIF registry and returns legal name, legal and headquarters address, registration status and registration dates. Three free calls per wallet via the X-WALLET header. Verification 1 $0.002 0.00% --- --- BSE
SuVerse Freight Load Positionimported Returns the current position of a tracked freight load from its load number, including coordinates, timestamp and transit status. Single POST endpoint by SuVerse Labs, priced at $0.01 per call in USDC on Base and Solana. Data 1 $0.02 100.00% $5 ·sh 29 BSE / SOL
Agent Card Validator (A2A)imported Validates an A2A Agent Card, given as a URL or inline JSON, against the A2A spec: required fields, skill schemas, endpoint reachability, security schemes and provider transparency. Returns a compatibility score, schema errors, warnings and an Ed25519-signed receipt. AI 1 $0.05 100.00% $0.02 ·sh 11 BSE
SYNTHORA Tx Intent Classifierimported Decodes a Base or Ethereum transaction from a tx hash or raw calldata and returns the decoded function, risk flags such as unlimited token approvals, and a risk verdict with an Ed25519 signed receipt. Blockchain 1 $0.10 100.00% $0.02 ·sh 11 BSE
SYNTHORA DeFi Strategy Verdictimported Scores a caller-supplied DeFi yield, LP or staking position (protocol, pool address, APY, TVL, duration) and returns an execute/monitor/avoid verdict with risk flags plus an Ed25519-signed receipt. The pool address is checked on-chain for contract code; APY and TVL are caller-supplied, not fetched. Finance 1 $0.05 0.00% --- --- BSE
Crypto Perp Signalsimported Pay-per-call API for crypto perpetual futures: funding rates ranked across roughly 100 Binance perp markets, the list of covered symbols, and the current Fear and Greed sentiment index, returned as structured JSON. Finance 3 $0.005 100.00% $0.19 ·sh 9 ARB / POL / BSE / SOL
x402watchimported Analytics API for the x402 ecosystem. Returns an 8-label classification with confidence for a buyer wallet, plus on-demand wash trading checks for any wallet or seller address. Data 2 $0.005 100.00% $6 ·sh 218 BSE / SOL
SYNTHORA Forex Rates (ECB)imported Returns European Central Bank daily reference exchange rates for 30+ currencies, for any base and quote pair, proxied from the public Frankfurter API. Three free calls per wallet via an X-WALLET header before payment is required. Finance 1 $0.05 100.00% $0.02 ·sh 11 BSE
HTTP Security Headers Checkimported One HEAD request against a URL, returning its parsed HTTP security headers as JSON: HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, plus advisory warnings and any disclosed Server or X-Powered-By. $0.01 per call on Base. Operated by x402 Atlas. Data 1 $0.01 100.00% $0.11 ·sh 13 ARB / SOL / POL / BSE
Hugen Intel APIimported Crypto due diligence API. Token, wallet, contract and DeFi yield reports combining security checks, market data and an AI risk score from 0 to 100 with red and green flags. Full report $0.50, lite variant without AI prose $0.02, in USDC on Base or Solana. Blockchain 3 $0.50 100.00% $6 ·sh 424 BSE / SOL
X (Twitter) Media Downloaderimported Resolves a public X (Twitter) post URL into direct CDN media links: mp4 video URLs with thumbnails plus every image in the post. Returns link URLs only, not the media bytes; posts with no media return 404. $0.005 per call in USDC on Base. Content 1 $0.005 100.00% $0.03 ·sh 8 ARB / POL / SOL / BSE
Hyperliquid Market Dataimported Pay-per-call REST API serving Hyperliquid market data on Base: spot and perp context, mid prices, order book, OHLCV candles, funding and predicted funding, open-interest caps and perp metadata. Nine endpoints, $0.005 to $0.01 per call. Operated by x402 Atlas, not by Hyperliquid. Finance 9 $0.005 100.00% $0.46 ·sh 13 BSE / POL / SOL / ARB
SYNTHORA Native Balance (eth_getBalance)imported Returns the native coin balance of an EVM address (wei and decimal) via eth_getBalance on Base, Ethereum and other chains, with an Ed25519 signed response receipt. 0.001 USDC per call over x402 on Base; first 3 calls per wallet are free with the X-WALLET header. Blockchain 1 $0.001 0.00% --- --- BSE
Email Deliverability Audit (SPF, DKIM, DMARC)imported Audits a domain's email deliverability from DNS only: SPF, DKIM selectors, DMARC policy strength, BIMI, MTA-STS and MX, returning a 0-100 score and prioritized fixes. Responses carry an Ed25519 signed receipt. 3 free calls per wallet via the X-WALLET header, then 0.001 USDC on Base. Verification 1 $0.05 100.00% $0.02 ·sh 11 BSE
Crypto Fear & Greed Indeximported Returns the current crypto Fear and Greed index (0-100) with its classification label, relayed from the public alternative.me feed. POST /service with a JSON limit field. First 3 calls per wallet are free via an X-WALLET header. Data 1 $0.05 100.00% $0.02 ·sh 11 BSE
StrategicMaterialsimported Returns supply concentration data for 77 mineral commodities: top producing countries with shares, an HHI concentration score, US net import reliance with major foreign sources, and USGS critical mineral designation. Source: USGS Mineral Commodity Summaries. Data 1 $0.05 100.00% $1 ·sh 36 SOL / BSE
LoneStarOracle OptionsFlowimported Options market data API returning unusual options activity, put/call ratio and the largest block trades for a given ticker, paid per call via x402. Finance 1 $0.05 100.00% $1 ·sh 36 BSE / SOL
Atlas Market Dataimported Pay-per-call market data API for stocks, crypto, forex, options and futures: OHLC bars, ticker reference, technical indicators, US macro series, corporate actions, insider trades, short interest and news. Flat $0.015 per call in USDC on Base, data passed through from upstream providers. Finance 10 $0.015 100.00% $2 ·sh 14 BSE / ARB / SOL / POL
LoneStarOracle ChainScoutimported Paid on-chain intelligence API returning whale transfers, trending tokens and DeFi protocol TVL shifts on Base and Ethereum, priced per query in USDC. Blockchain 5 $0.05 100.00% $1 ·sh 36 BSE / SOL
LoneStarOracle NewsSentimentimported Scores recent news headlines for a given ticker, company or market topic, returning a bullish/bearish/neutral distribution and an aggregate sentiment score from -1 to +1. One endpoint, 0.05 USDC per query. Finance 1 $0.05 100.00% $1 ·sh 36 SOL / BSE
Gotobi Calendar APIimported Returns Japanese FX gotobi (五十日) settlement dates and Japanese public holidays for a given month, with today and next-date lookups. Holiday data covers substitute holidays. Six paid endpoints at $0.01 per request in USDC on Base or Solana. Finance 3 $0.01 100.00% $6 ·sh 424 BSE / SOL
Hyperliquid Perps Snapshotimported Single call snapshot of Hyperliquid perpetual futures. Returns mark and oracle price, hourly funding rate with 8h and APR derivations, open interest, premium and 24h volume across 232 perps, with an Ed25519 signed receipt. 3 free calls per wallet, then 0.001 USDC on Base. Data 1 $0.02 100.00% $0.02 ·sh 11 BSE
SYNTHORA DNS + WHOIS Domain Reportimported Combined DNS and WHOIS report for a domain: A, AAAA, MX, TXT, NS, CNAME, SOA and DNSSEC records over DNS-over-HTTPS, registrar and registration/expiry dates via RDAP, plus a 0-100 hygiene score with letter grade. Responses are Ed25519 signed. 3 free calls per wallet via X-WALLET header. Data 1 $0.001 100.00% $0.02 ·sh 11 BSE
SYNTHORA Open Interest Oracleimported Pay-per-call API returning live Hyperliquid perpetuals data for 230+ assets: open interest, funding rate (hourly, 8h, APR), mark and oracle price, premium, 24h volume and a crowded long/short signal, plus cross-venue funding vs Bybit and Binance. Ed25519-signed. First 3 calls free per wallet. Data 1 $0.10 100.00% $0.02 ·sh 11 BSE
LoneStarOracle WhaleAlertimported Returns large on-chain transfers on Base and Ethereum above a chosen USD threshold, over a lookback window of up to 24 hours, with wallet labels and explorer links. Data 1 $0.05 100.00% $1 ·sh 36 BSE / SOL
ForgeMesh Fare Intelligenceimported Pay-per-call flight fare API on Base. A single paid endpoint returns price observations for an origin and destination route, a historical median comparison, and a buy or wait recommendation. Fare data comes from the Travelpayouts provider. $0.10 per query. Data 1 $0.10 100.00% $0.20 2 BSE
SYNTHORA DeFi Data (Hyperliquid perp feed)imported Multi-asset perpetual futures feed sourced from Hyperliquid: mark and oracle price, open interest, funding rate with 8h and APR derivations, 24h volume, spread and a directional signal, with optional single-asset detail. Responses are Ed25519 signed. Free trial calls via an X-WALLET header. Data 1 $0.05 100.00% $0.02 ·sh 11 BSE
ForgeMesh Disruption Intelligenceimported Pay-per-call API over US WARN Act layoff filings on Base: company search and profiles, event severity, amendment history and relationships, state and county rollups, plus briefs on downstream sector impact. Endpoints priced $0.01 to $0.25, no signup. Data 10 $0.01 100.00% $3 6 BSE
Domain Intelligence APIimported Domain intelligence lookups: WHOIS, multi-resolver DNS, SSL/TLS certificate, technology stack, security headers, subdomain discovery and redirect chain. Each check is available on its own, or combined into a single full report. Paid per call in USDC on Base or Solana. Data 1 $0.02 100.00% $6 ·sh 424 BSE / SOL
AeroCheckimported Takes an Aerodrome or Uniswap v2 compatible pool address on Base and returns per token risk scores, honeypot status, risk flags and a safe, caution or avoid verdict for the pair. Blockchain 1 $0.05 100.00% $1 ·sh 36 SOL / BSE
CottonmouthAIimported POST /audit with Rust smart contract source or a GitHub URL and it returns an LLM generated security audit report, with per finding severity, description, proof of concept and fix. Covers CosmWasm, Anchor/Solana, Soroban and NEAR. $2 USDC per call on Base or Solana. Verification 1 $2.00 100.00% $1 ·sh 36 BSE / SOL
SYNTHORA Translateimported Machine translation API with automatic source-language detection. POST a text and a target language code, receive JSON with the translation and an Ed25519 signature over the result. A limited free trial is available per wallet. AI 1 $0.05 100.00% $0.02 ·sh 11 BSE
SYNTHORA Token Riskimported Takes a token contract address on Base or Ethereum and returns a safe, caution, risky or rug_pull verdict, combining GoPlus token security data (honeypot simulation, buy and sell tax, holder count, ownership flags) with a bytecode scan, owner renounce check and honeypot.is. Ed25519 signed. Verification 1 $0.32 100.00% $0.02 ·sh 11 BSE
SYNTHORA Contract Watchimported Monitors an EVM contract on Base or Ethereum and returns the current security verdict plus a diff of what changed since the last check: owner, proxy implementation, proxy admin, Sourcify verification, honeypot and tax flags. Ed25519-signed. 0.02 USDC per call on Base. Verification 1 $0.32 100.00% $0.02 ·sh 11 BSE
SYNTHORA BIC/SWIFT Checkimported Validates a BIC/SWIFT code (ISO 9362) from its structure: 8 or 11 character format, bank code, ISO 3166 country check, location and branch decode, live/test/passive flag. Structural check only, it does not query the SWIFT registry. First 3 calls free per wallet via the X-WALLET header. Verification 1 $0.02 0.00% --- --- BSE
SYNTHORA RPC Receiptimported Returns an EVM transaction receipt (status, gas used, block number, log count) for a given transaction hash via eth_getTransactionReceipt, with an Ed25519 signature over the response. First 3 calls per wallet are free using an X-WALLET header. Blockchain 1 $0.003 0.00% --- --- BSE
SYNTHORA RPC Proxy Detectimported Checks an EVM contract for EIP-1967 style proxy slots and returns implementation, admin and beacon addresses when present. Responses are Ed25519 signed. Legacy or non standard proxy slots are not resolved. 3 free calls per wallet via the X-WALLET header, then $0.001 USDC on Base. Blockchain 1 $0.003 0.00% --- --- BSE
FX Exchange Rates (ECB)imported Foreign exchange reference rates for 30+ currencies, sourced from European Central Bank data via the Frankfurter API. Keyless JSON endpoint; the first 3 calls per wallet are free. Finance 1 $0.002 0.00% --- --- BSE
Crypto OHLCV Candles (Binance data)imported Returns OHLCV candles (open, high, low, close, volume) for a given crypto pair and interval, proxied from Binance public klines. The first 3 calls per wallet are free via the X-WALLET header. Data 1 $0.05 100.00% $0.02 ·sh 11 BSE
DEX Token Price (GeckoTerminal data)imported Current on-chain USD price for a token on a given chain, sourced from GeckoTerminal. Input is a network plus a token address. Volume and liquidity fields appear in the response but returned null in testing. First 3 calls per wallet are free via the X-WALLET header. Data 1 $0.05 100.00% $0.02 ·sh 11 BSE
Wikipedia Article Summaryimported Returns a Wikipedia article summary for a given title: title, extract, page ID and canonical URL, sourced from the Wikipedia REST API. No API key required. 0.001 USDC per call on Base, with 3 free calls per wallet via the X-WALLET header. Data 1 $0.001 0.00% --- --- BSE
SYNTHORA Agent Pre-Trade Safetyimported Returns a pre-trade risk verdict (SAFE, CAUTION or BLOCK) for an EVM address in one call, combining sanctions screening, stablecoin peg deviation in bps and a counterparty on-chain signal into an Ed25519-signed attestation. Scoring only, it never moves funds. Verification 1 $0.20 0.00% --- --- BSE
SYNTHORA MCP Server Security Scanimported Scans an MCP server for security issues. Send a target URL or a pasted manifest; a deterministic rule engine checks embedded secrets, shell and filesystem capabilities, prompt injection surface and permissive input schemas, returning a security score, a risk tier and findings with remediation. Verification 1 $0.05 100.00% $0.02 ·sh 11 BSE
SYNTHORA MEV Exposure Detectorimported Checks a Base transaction hash for MEV exposure. Identifies whether it is a DEX swap and scans neighbouring transactions in the same block for sandwich, frontrunning or backrunning patterns, returning one of no_swap, swap_exposed, frontrun_risk or sandwich. Heuristic, Ed25519-signed. Blockchain 1 $0.03 0.00% --- --- BSE
Apple App Store Search, Reviews & App Dataimported Unofficial Apple App Store data API: search apps by term, fetch app details by product id, and pull user reviews. Returns developer, price, rating, genres, screenshots and version history as JSON. $0.02 per call in USDC on Base. Data 3 $0.02 100.00% $0.52 ·sh 17 SOL / ARB / BSE / POL
SYNTHORA Gas & MEV Oracleimported Returns a recommended gas price, an estimated transaction cost, a congestion level and an MEV risk rating for Base. Responses are Ed25519 signed. Three free calls per wallet via the X-WALLET header, then paid per call in USDC. Blockchain 1 $0.001 0.00% --- --- BSE
RWA Riskimported Risk profile for tokenized real world asset vaults on Base, covering admin and freeze controls, contract upgradeability, and secondary market exit liquidity across 14 vaults. Data 1 $0.10 100.00% $1 ·sh 36 BSE / SOL
SYNTHORA Slippage Oracleimported Pre-trade slippage estimate for a Uniswap v3 swap on Base, returning expected output and price impact for a token pair, amount and fee tier. Note: on free-tier testing it returned no quote for major pairs. Finance 1 $0.10 100.00% $0.02 ·sh 11 BSE
SYNTHORA RPC Network Metadataimported Returns chain metadata for five EVM chains (Ethereum, Base, Polygon, Arbitrum, Optimism): chain ID, latest block, gas price and finality, read from public RPC endpoints and returned with an Ed25519 signed receipt. Three free calls per wallet via the X-WALLET header. Blockchain 1 $0.001 0.00% --- --- BSE
Hyperliquid Account Intelligenceimported Paid API returning a Hyperliquid account's trading state for any 0x address: perpetuals positions and margin, spot balances, HYPE staking, open orders, recent fills, portfolio history and fee tier. Relays Hyperliquid's public upstream data, billed per call in USDC on Base. Finance 7 $0.01 100.00% $0.47 ·sh 10 SOL / POL / BSE / ARB
SYNTHORA ENS Resolverimported ENS lookups on Ethereum mainnet: name to address, or address to primary name with forward verification. Responses carry an Ed25519 signature. First 3 calls per wallet are free via the X-WALLET header. $0.001 USDC per call on Base. Blockchain 1 $0.005 100.00% $0.02 ·sh 11 BSE
SYNTHORA Inference Routerimported Pay-per-prompt LLM inference: POST a prompt and get a completion, with no API key or account. Requests are routed to third-party model providers and responses carry an Ed25519 signature. Priced at 0.002 USDC per call on Base. The first 3 calls per wallet are free via an X-WALLET header. AI 1 $0.02 100.00% $0.02 ·sh 11 BSE
IPIntel.ai Satellite & GeoRisk APIimported Paid API returning satellite imagery and location data for coordinates. Four endpoints: Sentinel/Copernicus observations (true color, vegetation, water, thermal, radar), current natural hazard risk, forward geocoding and reverse geocoding. JSON responses, with PNG URLs for imagery. Data 4 $0.002 100.00% $0.07 ·sh 25 BSE
CascadeWatchimported Paid API returning DeFi liquidation cascade risk for Morpho Blue and Aave V3 lending markets: at-risk positions, liquidatable collateral and a cascade risk score. Finance 1 $0.10 100.00% $1 ·sh 36 BSE / SOL
CrownBlockimported US oil and gas market data: WTI, Brent and Henry Hub prices, refined products, US rig count, crude inventory versus the five year average, and production by basin, returned as JSON with a written market brief. Sourced from EIA and Baker Hughes, refreshed every six hours. Data 1 $1.00 100.00% $1 ·sh 36 BSE / SOL
ForgeMesh x402 Routerimported Paid search API over a registry of x402 services, with filters for category, tag, health status and reputation score. AI 1 $0.001 100.00% $0.005 4 BSE
Web Search, News & Page Readerimported Pay-per-call web search API for AI agents. Returns ranked JSON results with title, URL, snippet and relevance score, plus an optional LLM-generated answer. A batch endpoint extracts page content from up to 5 URLs as clean markdown. Date, domain and exact-phrase filters. Billed in USDC on Base. Data 3 $0.01 0.00% --- --- ARB / POL / SOL / BSE
LoneStarOracle GeoPulseimported Returns a geopolitical risk score from 0 to 10 for a country or region, combining a base risk score with news sentiment over a configurable 1 to 72 hour window, plus signal direction and key risks. Data 1 $0.07 100.00% $1 ·sh 36 SOL / BSE
LoneStarOracle PortfolioRiskimported Portfolio risk API: returns 95% VaR, Sharpe ratio, max drawdown, annualized volatility and a pairwise correlation matrix for a list of tickers, with optional weights. Finance 1 $0.10 100.00% $1 ·sh 36 SOL / BSE
ForgeMesh Utility APIsimported Pay-per-call API grid from ForgeMesh Labs, about 415 POST endpoints for small agent tasks: unit and timezone conversion, reference lookups, text and number utilities, chess logic, and read-only Robinhood Chain token registry data. From $0.001 per call in USDC on Base. Data 10 $0.001 100.00% $2 31 BSE
SYNTHORA x402 Registry Watchimported Paid JSON feed of change events in the x402 endpoint registry: new listings, payTo changes and endpoint up or down, with each row signed Ed25519. POST /service with a since cursor or ISO timestamp, an optional slug filter and a limit up to 200. Data 1 $0.05 100.00% $0.02 ·sh 11 BSE
Global Crypto Market Stats (CoinGecko data)imported Returns global crypto market statistics from CoinGecko: total market cap in USD, total 24h volume, and market cap dominance for top coins including BTC and ETH. Single POST /service endpoint at 0.001 USDC per call on Base, first 3 calls free per wallet via an X-WALLET header. Data 1 $0.05 100.00% $0.02 ·sh 11 BSE
LoneStarOracle EarningsCalendarimported Earnings calendar API for US equities: upcoming report dates, EPS estimates (low, average, high) and revenue estimates for up to 30 tickers, sorted by soonest report date. Finance 1 $0.03 100.00% $1 ·sh 36 SOL / BSE
DefiLlama Data API (x402 Atlas)imported Pay-per-call proxy over DefiLlama public data: DeFi TVL, yield pool APY, token prices, DEX and fee volumes, stablecoin supply. 30 endpoints at $0.005 per call in USDC on Base. Operated by x402 Atlas, not affiliated with DefiLlama. Finance 10 $0.005 100.00% $0.27 ·sh 15 ARB / SOL / BSE / POL
LeaseEdgeimported Paid API with a single /report endpoint returning Gulf of Mexico federal offshore oil and gas lease reports built from public BOEM data, filterable by area code, lease status or lease number. $0.15 USDC per query on Base or Solana. Data 1 $0.15 100.00% $1 ·sh 36 BSE / SOL
ConsumerPulseimported Returns a US consumer demand signal built from Census retail and food services sales: headline sales with month and year trends, core spending excluding autos and gasoline, e-commerce versus restaurant spending, and a 13 sector year over year breakdown. Data 1 $0.05 100.00% $1 ·sh 36 BSE / SOL
Twitter/X Advanced Tweet Searchimported Unofficial third-party bridge to X (Twitter) advanced search. One GET /search endpoint takes structured filters or raw X search syntax and returns up to 20 tweets per page as JSON, with author profile, engagement metrics and a pagination cursor. Data 1 $0.005 0.00% --- --- SOL / POL / BSE / ARB
PayAPI Market UK Finance Data APIimported UK financial data API with four paid endpoints: Bank of England base rate history, currency exchange rates, UK CPI inflation figures, and a mortgage payment calculator. Finance 1 $0.001 100.00% $0.12 ·sh 84 BSE
LaborPulseimported US labor-market signal (jobs, unemployment, wages, JOLTS) Data 1 $0.05 100.00% $1 ·sh 36 SOL / BSE
GridPulseimported US electricity grid data for 7 regions: demand, generation mix by source (renewable, gas, nuclear) and grid stress signals, sourced from EIA-930. Data 1 $0.03 100.00% $1 ·sh 36 SOL / BSE
RealEstatePulseimported Paid API returning US housing and mortgage indicators: 30-year and 15-year fixed rates, ARM rates, housing starts, building permits, existing home sales and the Case-Shiller home price index, sourced from FRED and refreshed weekly. Single GET /report endpoint, 0.03 USDC per call on Base or Solana. Finance 1 $0.03 100.00% $1 ·sh 36 BSE / SOL
StakeEdgeimported Staking yield API comparing protocol staking, liquid staking and liquid restaking rates (including ether.fi, Renzo, Kelp) across ETH, SOL, ATOM, ADA, DOT, AVAX and MATIC, with a best_strategy field. One report endpoint at $0.05 USDC per call, payable on Base or Solana. Finance 1 $0.05 100.00% $1 ·sh 36 SOL / BSE
ForgeMesh Anomaly Trackerimported Pay-per-call anomaly and signal API: sequence anomaly scoring on chain event windows, mempool and whale monitoring, stablecoin depeg checks, plus aviation and GitHub signal endpoints. USDC on Base, from $0.01 per call, no signup. Blockchain 10 $0.01 100.00% $0.58 7 BSE
FundingRatesimported Perpetual futures funding rates for BTC, ETH, SOL, AVAX, LINK and ARB across OKX, Hyperliquid and dYdX, with a long/short skew signal per asset. Data 1 $0.05 100.00% $1 ·sh 36 SOL / BSE
Crypto 24h Trading Stats (Binance data)imported Returns 24 hour rolling trading statistics for a Binance spot pair (last price, price change and percent, high, low, base and quote volume, trade count), proxied from Binance's free public ticker endpoint. First 3 calls free per wallet via the X-WALLET header. Data 1 $0.03 100.00% $0.02 ·sh 11 BSE
LatAmPulseimported Returns Latin American economic data: official FX rates for BRL, ARS, COP, MXN, CLP and PEN, the Argentina dolar blue premium, commodity prices (corn, soybeans, coffee, sugar, copper) and World Bank macro indicators, plus an AI written narrative. Single paid endpoint at /report. Finance 1 $0.05 100.00% $1 ·sh 36 SOL / BSE
PayAPI Market UK Vehicle Data APIimported UK vehicle data by registration plate: DVLA vehicle details, MOT test history, tax status and CO2 emissions. Data 1 $0.001 100.00% $0.12 ·sh 84 BSE
ForgeMesh Travel Agentimported Pay-per-call travel planning API on Base: transit provider lookups, weather-aware plans, day trip and weekend itinerary briefs, and location disruption signals. Free calls return a skeleton listing the withheld fields; paid calls return the full result. Data 6 $0.01 100.00% $0.46 6 BSE
OpenInterestimported Pay-per-call API returning perpetual futures open interest for BTC, ETH, SOL, AVAX, LINK and ARB across OKX, Hyperliquid and dYdX: USD totals, per-exchange breakdown, 5-minute delta and an accumulating or deleveraging signal. $0.05 in USDC per call on Base or Solana. Finance 1 $0.05 100.00% $1 ·sh 36 BSE / SOL
CyclePulseimported Pay-per-call API returning the US manufacturing and trade inventory-to-sales ratio, factory new orders for durable goods and core capital goods, and a plain-language cycle phase label. Data from US Census MTIS and Advance M3. Data 1 $0.05 100.00% $1 ·sh 36 BSE / SOL
UK HMO Licence APIimported Checks whether a UK property holds a House in Multiple Occupation licence, by postcode and house number, by postcode area, or by licence number, returning council, licence type, expiry and occupancy limits. Data 3 $0.02 100.00% $0.12 ·sh 84 BSE
ComputePulseimported Returns GPU spot prices collected from Vast.ai, RunPod, AWS EC2 Spot and Lambda Labs, with the cheapest option per GPU tier (H100, H200, A100, L40S, RTX 4090), a market signal and a short text summary. One paid endpoint at 0.05 USDC per call. Data 1 $0.05 100.00% $1 ·sh 36 SOL / BSE
StablePulseimported Returns peg deviation (current, 24h and 7d) for the top stablecoins by market cap, plus a 0 to 10 stability score and a risk category, sourced from DeFiLlama and CoinGecko. Finance 1 $0.05 100.00% $1 ·sh 36 SOL / BSE
StableFinanceimported Pay-per-request API for US equities data: prices, financial statements, SEC filings, 13F holdings, insider trades and central bank rates. Wraps the Financial Datasets AI API at $0.02 per successful call, no upstream account needed. Finance 10 $0.02 100.00% $6 21 BSE / SOL
CoinGecko Crypto Price & Data (x402 Atlas)imported Pay-per-call REST API serving CoinGecko data on Base: spot prices, OHLC candles, market-cap rankings, coin metadata, 24h trending coins and historical price snapshots, at $0.005 per call. Operated by x402 Atlas, not by CoinGecko. Finance 6 $0.005 100.00% $0.52 ·sh 27 BSE / ARB / SOL / POL
DNS & WHOIS Domain Lookupimported Pay-per-call DNS and domain lookup API with six endpoints: A, TXT and MX records, WHOIS text, parsed RDAP registration data and DNSSEC status, all returned as structured JSON. Flat $0.005 per call, payable on Base or Solana. Data 6 $0.005 100.00% $0.93 ·sh 18 ARB / POL / BSE / SOL
CoinopAI ImageGenimported Pay-per-call AI image generation on Base. Four tiers return a hosted image URL plus the prompt, aspect ratio and timestamp: standard and background-removed on FLUX Schnell, HD on FLUX 1.1 Pro with 4x upscale, and Pro on FLUX Kontext Max. AI 4 $0.25 100.00% $5 7 BSE
IndustrialMetalsimported Industrial metals prices with momentum signals, category analysis, and AI brief Data 1 $0.05 100.00% $1 ·sh 36 BSE / SOL
SupplyChainPulseimported Paid API returning a global supply chain stress report: dry bulk and container shipping rates, BLS producer price indexes, the NY Fed GSCPI, a 0-10 stress score and a short AI written summary. Data 1 $0.05 100.00% $1 ·sh 36 SOL / BSE
OT Intel APIimported Pay-per-call OT/ICS threat intelligence API. Endpoints cover CVE triage with OT-adjusted severity, internet-exposed device lookup, threat actor and campaign profiles, IOC enrichment, detection artifacts and compliance framework mapping. Responses are LLM-enriched. Priced in USDC on Base. Data 10 $0.01 100.00% $27 8 BSE
Hugen Visual APIimported Renders any public URL to a base64 JPEG or PNG screenshot, with full-page capture, CSS selector targeting, device presets and dark mode. Returns page title, file size and render time. Paid per capture in USDC on Base or Solana. Compute 1 $0.02 100.00% $6 ·sh 424 SOL / BSE
OnchainPulseimported Pay-per-query intelligence API for onchain finance: pre-trade token safety verdicts on Solana and EVM, RWA and tokenized asset data, crypto regulation summaries, ETF flow figures and a terminology decoder, all returned as structured JSON. Data 10 $0.015 100.00% $272 110 SOL / BSE / ARB / POL
AgriPulseimported Agricultural commodity price data for corn, soybeans, wheat, cotton, coffee, sugar and livestock, with trend series and an AI-generated market summary. Sourced from FRED, priced per query. Data 1 $0.03 100.00% $1 ·sh 36 SOL / BSE
TechAnalysisimported Pay-per-query API returning technical analysis for crypto, equity and forex tickers: indicator readings such as RSI, MACD, Bollinger Bands and ADX across multiple candle timeframes, with a confluence score and a signal summary generated by a language model. Finance 2 $0.05 100.00% $1 ·sh 36 SOL / BSE
IPIntel.ai IP Lookup & Risk APIimported Pay-per-call IP intelligence API. Send an IPv4 or IPv6 address and get JSON with a risk score and label, ASN, ISP, organization, geolocation, reverse DNS, hosting/proxy/Tor flags, verified bot detection and a short threat summary. Priced at $0.001 per call in USDC on Base. Data 1 $0.001 100.00% $0.07 ·sh 25 BSE
TeleSintimported Threat intelligence API that extracts indicators of compromise, C2 infrastructure, threat actor profiles, breach disclosures and CVE signals from public Telegram security channels, returned as structured JSON with MITRE ATT&CK tags and confidence scores. Data 10 $0.01 100.00% $4 6 BSE
cn402imported Pay-per-call API for Chinese calendar and culture data: lunar and solar calendar, jieqi, BaZi astrology, I Ching, feng shui, hanzi to pinyin and simplified/traditional conversion, TCM references and China geo lookups. Priced from $0.002 to $0.16 in USDC on Base and Solana. Data 10 $0.0022 100.00% $91 ·sh 212 SOL / BSE
ForgeMesh x402 Adsimported Paid analytics on x402 agent traffic: network totals with a user agent breakdown ($0.005) and top requested endpoints and categories ($0.01). Counts come only from services running the ForgeMesh x402-ads middleware, which also injects recommendation blocks into their 402 responses. AI 2 $0.005 100.00% $0.67 9 BSE
molty.cashimported Runs pay-per-view (CPM) content campaigns that pay creators in a Solana SPL or Base ERC-20 token, with views read from X or reported by the campaign owner's agent. Also exposes per-user endpoints for hiring individual creators. Payments settle on-chain via x402 on Base and Solana. Content 3 $1.00 100.00% $4 2 SOL / BSE
IPIntel.ai x402 Toolsimported Pay-per-call x402 API package on Base: satellite observation from coordinates using Sentinel/Copernicus imagery, plus DNS, WHOIS, reverse DNS, domain health and availability, IP lookup, email validation and HTTP latency checks. Prices from $0.001 to $0.09 per call. Data 10 $0.001 100.00% $0.07 ·sh 25 BSE
Vibe Springsimported Pay-per-call data API serving many endpoints on one host: weather and forecasts, earthquakes, flood and marine conditions, fiat exchange rates and conversion, on-chain address risk, plus alert and invoice workflows. No accounts or API keys, USDC micropayments on Base. Data 10 $0.002 100.00% $62 54 BSE
Whale Intelligence APIimported Resolves Ethereum addresses to entity labels, name tags and categories from a database of about 412,000 labeled addresses, and returns large ETH transfers with labeled counterparties. Paid per call in USDC on Base. Blockchain 2 $0.01 100.00% $5 ·sh 416 BSE
Stratalizeimported x402 API serving about 196 endpoints of benchmark and reference data across finance, governance, compliance, healthcare and real estate. Priced $0.02 to $0.50 USDC on Base and Solana. The operator states each response carries a signed receipt checkable at trust.stratalize.com. Finance 10 $0.02 100.00% $8 12 BSE / SOL
SYNTHORA Contract Guardimported POST a Base contract address and receive a JSON safety verdict covering honeypot, rug pull, hidden mint and owner privileges, returned with an Ed25519 signature. One endpoint on the SYNTHORA agent services mesh operated by Hergert Synthora. Verification 1 $0.005 0.00% --- --- BSE
LoneStarOracle TokenScopeimported Returns a risk report for an ERC-20 token contract: risk score, GoPlus security flags, honeypot detection, liquidity, top-holder concentration, ownership status and an AI analyst verdict. Blockchain 1 $0.15 100.00% $1 ·sh 36 SOL / BSE
TensorFeedimported Real-time data API for the AI industry: aggregated news, provider status, model pricing and benchmarks, historical series and security feeds. Free no-auth endpoints plus premium x402 endpoints at $0.02 per call in USDC on Base or Solana. Data 10 $0.02 100.00% $4 21 SOL / BSE
Apiosk Gatewayimported Pay-per-call API gateway on x402. Routes requests to about 67 third-party and federated APIs covering weather, finance, IP data, transcription and search, settling in USDC on Base with no accounts or API keys. Endpoint prices range from about 0.02 to 0.83 USD. AI 10 $0.02 100.00% $58 14 BSE
Scout Multi-Source Intelligence APIimported Search API for agents that queries 18 sources in parallel (Hacker News, GitHub, npm, PyPI, arXiv, Stack Overflow, X/Twitter, Product Hunt and others) and returns structured JSON, plus aggregated multi-source research reports. Paid per call in USDC on Base or Solana, from $0.01. Data 10 $0.01 100.00% $6 ·sh 424 BSE / SOL
CoinOpAI Kronos Market Intelligenceimported Pay-per-call crypto market intelligence API on Base: calibrated 80% price ranges for BTC, ETH, SOL, XRP and ADA, plus market risk state, decision journals with an audit trail, and anomaly scoring. Free delayed samples are available without payment. Finance 10 $0.005 100.00% $3 21 BSE
IXSimported Pay-per-call API exposing IXS tokenized real world asset vaults: vault listings with their underlying asset and on-chain details, returned as JSON. bash.001 per request in USDC on Base. Finance 1 $0.001 100.00% $0.03 14 BSE
Hacker News Stories & Searchimported Hacker News endpoint of the kadec0 API: top, new and best front page stories plus full text story search, returning title, score, comment count and author. The same host also serves other data and research endpoints. Data 10 $0.01 100.00% $16 14 BSE
Bitrefillimported API to search gift cards, eSIMs and mobile top ups and pay for them in USDC via x402, priced per call and with no account. Endpoints cover catalog search, product detail, and invoice creation, payment and status, on Base, Arbitrum, Polygon and Solana. Finance 8 $0.001 100.00% $821 98 ARB / BSE / POL / SOL
DeFiRiskimported DeFi protocol risk score: TVL, hack history, audit status, contract safety, AI verdict, plus current supply/lending yields (APY) Finance 1 $0.10 100.00% $1 ·sh 36 BSE / SOL
TickersFeedimported Pay-per-call market data API for AI agents: stock quotes, earnings and news, crypto prices, DeFi TVL and yields, gas prices, SEC filings and FX rates, plus AI generated analysis. Prices range from $0.001 to $0.08 USDC per call on Base. Finance 10 $0.001 100.00% $9 52 BSE
LoneStarOracle MacroPulseimported Pay-per-query API returning US macro data (Fed funds rate, curve yields and spreads, CPI and Core PCE, M2, GDP, unemployment, VIX, Fear and Greed index) together with a macro regime summary generated by a language model. Finance 1 $0.05 100.00% $1 ·sh 36 SOL / BSE
DripStackimported Paid API returning, as JSON, single stock calls extracted from financial newsletters and podcasts, with an optional filter by UTC day and a price that varies with the number of attributed sources returned. Finance 1 $0.10 100.00% $20 29 SOL / BSE
the402imported Marketplace API where AI agents discover listed services and pay for them in USDC on Base, via x402 or a pre-funded balance. Covers participant registration, job postings and bids, escrow held work, subscriptions and provider payouts. The service catalog is readable for free. AI 10 $0.001 0.00% $39 30 BSE
x402stockimported Pay-per-call market and economic data API for agents: US stocks, ETFs and options, macro series, SEC filings, crypto and market sentiment. Paid in USDC via x402 on Base, no API key required. Finance 10 $0.01 100.00% $38 42 BSE
Deepline GTM APIimported Pay-per-call GTM data API on Base: company and person enrichment, work and personal email lookup, phone and LinkedIn lookup, decision maker identification and ad intelligence. Origin hosted on AgentCash, which exposes Deepline tooling. Data 2 $0.10 100.00% $185 115 BSE
MiroSharkimported Runs a 25-agent social-media simulation across Twitter, Reddit and Polymarket over 10 rounds from a prompt, URL or article, then returns a markdown report with belief drift, top posts and prediction-market trajectories. AI 1 $1.00 100.00% $12 7 BSE
Atelier AI Agent Marketplaceimported x402 marketplace of services delivered by AI agents: hire an agent by sending a brief and pay per call in USDC on Base or Solana. Exposed endpoints cover image generation, competitive intelligence reports and quiz generation. AI 4 $0.011 100.00% $4 8 BSE
x402nodeimported Pay-per-call API with more than 500 endpoints on a single host: exchange rates, crypto and stock prices, on-chain and DeFi data, commodities, text and web utilities. x402 payment in USDC on Base and Solana, full catalog at /openapi.json. Data 10 $0.004 100.00% $91 ·sh 212 BSE / SOL
Stock Trends Market Intelligenceimported Per-request paid API exposing weekly Stock Trends data for North American equities and ETFs: prices, trend indicators, market regime, screener, leadership rotation and history. Priced from $0.0025 to $0.50 per call in USDC on Base. Finance 10 $0.0025 100.00% $54 20 BSE
Apify Agentic Endpoint (AGI)imported Sells a prepaid, spend capped Apify API token paid in USDC on Base, to be used afterwards as a Bearer token against the Apify APIs to run scraping and automation Actors. Minimum amount 1 dollar. Data 1 $1.00 100.00% $319 ·sh 37 SOL / BSE
glim.shimported Pay-per-call API returning live data from Twitter, Reddit, the web, GitHub, Amazon, YouTube and Telegram, plus a chat completions compatible inference endpoint. Data 10 $0.001 100.00% $22 459 BSE / SOL
Apify Actors APIimported Run Apify Actors (scrapers, crawlers and web automation tools) paying per call in USDC on Base via x402, with no account or API key. The 402 challenge declares a cap of 1 USDC per run and the JSON schema of the required input. Data 5 $1.00 100.00% $315 ·sh 36 BSE
ReadXimported Public X/Twitter data as read-only JSON: profiles, timelines, single tweets and conversations, search, hashtags, lists, followers and following. Paid per single call via x402, $0.01 in USDC on Base or Solana, with no API key or registration. Data 10 $0.01 100.00% $17 24 SOL / BSE
StableSocialimported Pay-per-request API for public social media data across TikTok, Instagram, YouTube, X, LinkedIn, Facebook, Reddit and other platforms, priced at $0.06 per call. Aggregates third-party scraping providers (Scrape Creators, Data365, Lightreel) behind one x402 endpoint set. Data 10 $0.06 100.00% $398 128 SOL / BSE
StableBrowserimported Remote browser sessions for AI agents, priced at 0.10 USDC on Base per session. Once a session is created, actions on it (navigate, act, extract, observe, screenshot) are included. Built on Browserbase and Stagehand. AI 1 $0.10 100.00% $19 18 BSE
Google Trends SEO Keyword Dataimported Pay-per-call API over Google Trends data: interest over time for a keyword, interest by region within a country, related topics and queries. Returns JSON, built for keyword research and search demand analysis. Data 4 $0.03 100.00% $63 ·sh 17 ARB / POL / SOL / BSE
Hirescrapeimported Pay-per-call scraping API for LinkedIn, Instagram, TikTok and TikTok Shop profiles and content, plus job posting search across multiple job boards. Price per record is declared in the 402 response, paid in USDC on Base. Data 5 $0.00225 100.00% $2 19 BSE
RegimeShift Clearinghouseimported Pay-per-call market data API on Base. Returns BTC and ETH volatility risk premium (Deribit DVOL minus Parkinson realized vol, 72h) and Agent-SOFR, an operator-computed USD short-rate benchmark, with raw inputs and a LOW/MID/HIGH regime label. Data 2 $0.001 100.00% $0.45 16 BSE
Agent402.toolsimported Catalog of pay-per-call HTTP tools for AI agents: web search, browser rendering, PDF and OCR, crypto and stock data, SEC EDGAR filings, plus an OpenAI compatible LLM gateway. Paid in USDC via x402 on Base and other chains, with some tools available free through proof of work. AI 10 $0.005 100.00% $121 133 AVX / SOL / ARB / POL / BSE
ip402.xyzimported Paid IP intelligence endpoint returning normalized geolocation and ASN data for a single IPv4 or IPv6 address. Data 1 $0.01 100.00% $0.98 16 BSE / SOL
SuVerse Payimported Pay-per-call x402 API by SuVerse Labs with around 500 data endpoints (crypto prices, DeFi TVL, FX rates, weather, IP geolocation, prediction markets) wrapping public sources. Settles in USDC on Base, Solana and Noble, typically $0.05 to $0.10 per call. Data 10 $0.001 100.00% $14 ·sh 31 BSE / SOL
toon.haus Financial Data APIimported Pay-per-call financial data API: stock quotes, metrics, earnings, insider transactions, SEC filings, options, market news, forex and crypto. Finance 10 $0.001 100.00% $0.52 25 BSE
PayAPI Market Weather Data APIimported Weather API returning current conditions, forecasts up to 16 days, historical data and air quality for any location worldwide, backed by Open-Meteo data, at $0.001 per call in USDC on Base. Data 1 $0.001 100.00% $0.12 ·sh 84 BSE
KR Crypto Intelligenceimported Korean crypto market data for AI agents: Upbit and Bithumb prices, kimchi premium, USD/KRW rate, arbitrage scanning across 189+ tokens, and AI sentiment built from Korean news. Pay per request via x402 on Base, Polygon or Solana. Data 10 $0.001 100.00% $6 ·sh 218 SOL / POL / BSE
Tick Aggregator FX APIimported Best bid/ask FX aggregated from multiple sources across 14 instruments (major pairs and XAUUSD), with quality metadata: number of fresh sources, quality status and spread comparison against the single source. Paid per call in USDC on Base or Solana. A delayed demo feed and service status are available for free. Finance 3 $0.005 100.00% $5 ·sh 416 SOL / BSE
Usenamiimported Pay-per-call API for perpetual futures market data across 30+ CEX and DEX venues: funding rates and cross-venue spreads, orderbook depth and slippage, open interest, basis and carry, and funding arbitrage signals. Data 10 $0.001 100.00% $2 11 BSE
Aubrai x402 APIimported Paid access to the Aubrai longevity research agent (VitaDAO/BIO): chat and scientific literature synthesis, including HPKE encrypted variants routed to a Tinfoil confidential compute enclave. AI 4 $0.02 100.00% $8 5 BSE
DripMetrics AIimported Pay-per-call API returning crypto market microstructure and risk metrics as JSON (VPIN, Kyle lambda, Roll spread, CVD, Amihud illiquidity, gamma exposure), paid per request in USDC on Base with no API key. Standard metrics $0.05, market summary $0.25. Data 10 $0.05 100.00% $19 8 BSE
Clash of Coins Checkoutimported x402 checkout gateway for the Clash of Coins game: exposes the catalog, quotes and purchase of NFT sale lots and in-game shop items, paid in USDC on Base. Other 2 $0.001 100.00% $10.9k 188 BSE
Creative Tim shadcn/ui Blocksimported Returns the source code of Creative Tim shadcn/ui blocks after a payment in USDC on Base, either as JSON via API or as an HTML page. Official demo by the operator: the same blocks are available for free on the Creative Tim site. Content 2 $0.01 88.68% $2 141 BSE
StableUploadimported Paid file and static site hosting for agents. Pay in USDC to obtain an upload URL, then the file or site stays served from a public link until it expires. Tiered pricing, from 0.005 to 2 dollars. AI 2 $2.00 100.00% $13 81 BSE / SOL
Hugen Weather APIimported Pay-per-call weather API: given a city name or coordinates it returns current conditions and daily forecasts up to 7 days as structured JSON, with x402 payment in USDC on Base or Solana. Data 2 $0.01 100.00% $6 ·sh 424 BSE / SOL
x402scanimported Paid x402 API from x402scan returning its ecosystem datasets: merchants, resources, buyers, facilitators and origin registry, priced per call in USDC on Base. Data 8 $0.01 100.00% $12 49 BSE
Linked Pandaimported Read-only x402 API over LinkedIn data: profile and company enrichment, verified work email lookup, post reactions, job posting and ad search. Paid per single request in USDC on Base. Data 10 $0.01 100.00% $91 57 BSE
StableEstateimported Pay-per-request US real estate data API: rental and for sale listings, property records with attributes, taxes and owner, value and rent estimates, market statistics by postal code. MLS data supplied upstream by RentCast. Data 10 $0.01 100.00% $4 17 BSE
StableTravelimported Pay-per-request travel API for flight search, award seat availability, hotels, activities, transfers and flight tracking, built on Amadeus, Seats.aero, SerpAPI and FlightAware. No account or API key required. Data 10 $0.0054 100.00% $182 96 SOL / BSE
Hibra AI Swapimported Executes token swaps on Base, routing across multiple DEXes including Uniswap, Aerodrome and SushiSwap. Charges 0.1 USDC per approved transaction. Finance 1 $0.10 100.00% $0 0 BSE
OneSourceimported RPC API for Ethereum mainnet and Sepolia, with 25 pay-per-call endpoints (blocks, balances, transactions, receipts, event logs, ENS, contracts, NFTs) payable in USDC on Base via x402, with no API key. Blockchain 10 $0.001 100.00% $148 1479 BSE
Deepnets APIimported Solana on-chain analysis API: token safety scoring, holder breakdowns, wallet funding-network graphs, social research, trending feed and watchlist. Paid per call in USDC on Solana via x402. Blockchain 10 $0.01 100.00% $250 15 SOL
Loyal Sparkimported Paid API for onchain loyalty programs on Base: loyalty token deployment, minting to customer wallets, rewards catalog, vouchers and P2P exchange, usable by agents over REST or MCP. Blockchain 10 $0.001 100.00% $158 84 BSE
BlockRunimported x402 gateway giving pay-per-call access to LLM inference, web search, prediction market data and crypto data, paid in USDC on Base with no account or API key. AI 10 $0.003 100.00% $166.7k 877 BSE
StableEnrichimported Pay-per-request access to third party web search and enrichment APIs, including Exa, Firecrawl, Clado, Google Maps, Whitepages, Reddit and PDL, behind a single endpoint with no auth, paid in USDC on Base or Solana. Data 10 $0.002 100.00% $1.6k 535 BSE / SOL
Tavily Searchimported Web search API for AI agents. POST /search returns ranked results, an optional generated answer, raw page content and images. Search depth is always advanced. $0.01 per call in USDC on Base, no API key or account required. AI 1 $0.01 96.23% $0 0 BSE
twit.shimported Paid API for X/Twitter data: tweet search, user profiles, followers, lists and communities returned as X v2 compatible JSON, plus write endpoints such as posting and interactions. Paid per single request in USDC on Base via x402. Data 10 $0.0025 100.00% $524 161 BSE
Sippar Token Market Data Canonical token market data for a ticker: price, market cap, FDV, liquidity, 24h change and volume with buy/sell split and netflow, launch date, on-chain total supply (Nansen token-screener plus on-chain reads; response includes the required "Powered by Nansen API" attribution). Neutral facts only, no ratings, no predictions, not investment advice. Data 1 $0.10 86.79% $0 0 BSE
Sol Node Labs Pseudonymous pay-per-call crypto risk intelligence: deterministic Solidity triage, Base token risk screening, and vetted crypto bounty intelligence. USDC via x402 on Base and Solana; no account or API key. Blockchain 3 $0.01 0.00% $0 0 SOL / BSE
botsmith Pay-per-call web and on-chain intelligence for AI agents, no API keys. read (URL to markdown), dossier (domain intelligence: DNS/SPF/DMARC/RDAP/TLS), onchain (EVM address due-diligence on Base/Ethereum/Optimism). USDC on Base via x402 v2, Bazaar discovery, MCP server. Data 3 $0.003 0.00% $2 31 BSE
SEC fundamentals API Normalized SEC financial data, priced per call, built for agents. Company financials, XBRL facts, filings, industry benchmarks, peer comparison and screening across 20,000+ US public companies — parsed nightly from SEC EDGAR, normalized to 61 canonical concepts, and payable in USDC per request via the x402 protocol. No signup. No API key required. Your agent pays $0.005–$0.25 and gets JSON back. Finance 1 $0.10 100.00% $0.40 3 BSE
BridgeNode DeepSeek V4 Flash v2 inference via x402. OpenAI-compatible chat completions with SSE streaming. Pay per call with Solana USDC. No registration, no API keys. AI 1 $0.002 100.00% $0.46 1 SOL
DeFi Signals API Paid market-data API for AI agents (x402, USDC on Base): cross-venue perpetual funding rates (OKX, Kraken Futures, dYdX) with a ready-to-use arbitrage spread signal, outlier-cleaned DeFi yields from DefiLlama, and a low-cost BTC/ETH/SOL market snapshot with Fear & Greed index. Clean JSON, exact scheme, from $0.002 per request. OpenAPI at /openapi.json. Data 3 $0.002 100.00% $0.72 ·sh 11 BSE
Agent Exchange Pay-per-call data gateway for AI agents — 62 x402 endpoints, USDC on Base, no API key or signup, just a wallet. Coverage: pre-trade token security / rug-check (honeypot, buy/sell tax, mintable, holders), DEX price & liquidity, new-token launch feeds, on-chain reads (balance, gas, tx status, plain-English tx decode, token supply, ENS), web search (Hacker News + GitHub + Stack Overflow + Wikipedia in one call), live prediction-market odds, DeFi yields, and macro data. Flagship: AI-visibility / answer-engine checks — does ChatGPT, Claude, Perplexity or Gemini recommend a given brand — plus category leaderboards. Machine-readable: /openapi.json, MCP server at /mcp, A2A agent card. Payable by both x402 v1 (x402-fetch) and v2 clients. Data 20 $0.005 100.00% $6 25 BSE / SOL
Concierge Agent 24 pay-per-call routes for market intelligence, DeFi research, creative AI, RWA signals, and passive security scans over x402. AI 24 $0.02 100.00% $9 14 ARB / BSE / SOL
mdapi HTML to clean, LLM-ready Markdown. POST a URL (or raw HTML) and get back readable markdown with nav, scripts, and footers stripped — Readability article extraction, tables preserved. Also POST /extract for structured JSON (title, byline, links, meta). $0.005 per call via x402 (USDC on Base), no signup, no API key. Data 2 $0.005 100.00% $0.14 8 BSE
fry.farm x402 Agentic Actions 15 pay-per-call USDC endpoints on Algorand mainnet: DeFi/DePIN data feeds plus non-custodial transaction builders (staking, LP farming, NFT mint, P2P offers). Builders return unsigned atomic groups - agents sign with their own wallet and submit. No API keys, no accounts. Free machine-readable catalog at https://fry.farm/x402/catalog Blockchain 15 $0.001 100.00% --- ---
Orisha Data Structural market data over x402 on Base. D1: real-time support/resistance levels for CME micro futures (MES, MNQ, MYM) with zone status, freshness fields, and a stated coverage window (Mon–Fri 09:30–16:10 ET, 3-min cadence, 600s freshness contract) — $0.07/call. C1: BTC-USD spot feed — $0.01/call. Free unsigned previews and machine-readable docs at /docs. Validation-first serving: stale or market-closed data is refused unpaid, never sold. Data 1 $0.01 0.00% $0 0 BSE
Watchtower Deterministic sanctions screening for AI agents across OFAC/UN/EU/UK lists; x402 USDC on Base, no signup. Verification 1 $0.02 100.00% $0 0 BSE
MeshPilot Text or image to production-ready 3D models (GLB, PBR textures, up to 1M triangles) in one API call. Built for AI agents: x402 USDC on Solana, settle-upfront with automatic refund on failure. Also auto-rigs models (skeleton + skinning) and segments them into named parts with attachment points. Self-describing: GET /api/generate returns live prices, every knob, and examples. AI 3 $0.10 0.00% $0 0 SOL
Tollbooth 56 verified financial, tax & legal calculators for AI agents — pay-per-call in USDC on Base. Every answer carries a formula trace, its 2026 source, and a reproducible SHA-256 hash you can re-derive for free at /v1/golden. Neutral /v1/verify + open Golden-Vector Provenance spec. Finance 50 $0.01 100.00% $7 4 BSE
Runbot Strategy Copilot StratForge: build + AI-optimize + export a crypto trading strategy in ONE paid x402 call. Tiers by optimizer depth - Flash 2min $2.99, Deep 15min $8.99, Ultra 60min $24.99. Perp futures (OKX Top-20) and Polymarket Up&Down. Paper now, live soon on app.apevsbot.com. Finance 4 $0.25 100.00% $46 1 BSE
Coil Scanner board AI stock-scanner board sold per read over x402: ~560 S&P 500 / Nasdaq-100 / Macro names scored for opportunity, entry state, and hold strength, with per-book regime verdicts and buy-list lanes. $0.25/read in USDC on Base, refreshed ~every 5 minutes during US market hours. Free previous-day sample at /api/board/free. Impersonal research, not investment advice. Finance 1 $0.25 100.00% $3 11 SOL / BSE
BrazilMCP Brazilian company data for AI agents, paid per call in USDC (x402 v1+v2) on Base. Official-source KYB: Receita Federal registry lookup by CNPJ or name ($0.005), sanctions screening across the 5 federal lists ($0.02) and a full due-diligence dossier with litigation signal and government-contract history ($0.25). Also exposed as an MCP server at https://api.brazilmcp.dev/mcp. Data 3 $0.005 0.00% $1 1 BSE
DataForAgents Pay-per-request JSON datasets for autonomous agents via x402 (USDC on Base). Steam catalog search/insights, FIFA World Cup 2026 player data, and news Alpha/Shift pulses. No API keys — unpaid calls return HTTP 402. Data 6 $0.01 100.00% $0 0 BSE
StillOS Notary Signed x402 verification and screening primitives: claim notarization, resolver-graded verdicts, OFAC SDN screening, and validated corporate distress scoring, backed by an on-chain correctness bond. Verification 2 $0.10 100.00% $0.21 1 BSE
timezone-toolkit Timezone converter, world clock, DST-aware date math and meeting scheduler for AI agents. Pay-per-call x402 endpoints (USDC on Base) covering timezone conversion, world clock / now-in-city, city or country to IANA timezone lookup, UTC offsets, batch conversion, calendar-aware date math, public-holiday checks, and cross-timezone meeting-slot finding. IANA/DST-accurate. Also available as a free MCP server (no API key). Data 8 $0.001 0.00% $0.09 2 BSE
Toolcall Keyless pay-per-call APIs for AI agents: 30 tools across compliance (sanctions/AML, HS codes, company/VAT), safety (chemical, FDA drug/device, product recalls), web (search, reader, screenshot, tech-stack), and data (SEC financials, electronic parts, jobs, local places). Pay per call with USDC on Base via x402. No account, no API key. Data 8 $0.008 100.00% $6 14 BSE
MIND Protocol Paid Solana data cards for autonomous agents: price signals, wallet market intelligence, and risk scoring over x402 v2 and USDC. Finance 3 $0.008 100.00% $0 0 SOL
AgentData API Real-time crypto market data for AI agents: prices, perp funding rates and predictions, volatility, liquidation levels, correlation, on-chain vs CEX spreads, technical indicators, sentiment, plus differentiated institutional signals (trader positioning, spot ETF flows, macro/on-chain context, supply). NEW: /api/market-pulse bundles the eight most-polled signals into one call for $0.018 — 18% cheaper than the $0.022 the parts cost, and one settlement instead of eight, which matters when the facilitator pays the gas. Pay-per-request in USDC on Base via x402 - no account, no API key. Self-hosted facilitator. MCP endpoint and A2A agent card included. Data 22 $0.002 100.00% $6 5 BSE
EVA MCP Ask Eva: the autonomous research desk for crypto, DeFi and global markets, from the Everything.inc ecosystem. Eva is a multi-step AI agent that writes and runs code over live, institutional-grade data instead of guesswork: real-time prices, TVL, volumes, open interest, funding rates, liquidations, order-book depth, on-chain flows, news and sentiment. One paid call runs the ask tool and returns a plain-text answer. AI 1 $0.01 100.00% $0.03 1 ARB / BSE
US CPI Data & Inflation Report API Gives you official United States inflation numbers from the government's BLS Consumer Price Index. Ask for the newest reading, a specific month in the past, or a whole range of months, and get back clear percentages for overall inflation and 'core' inflation (which ignores food and energy prices), plus a plain-English summary sentence. Finance 1 $0.01 100.00% $10 ·sh 27 SOL / BSE
contract-guard API Pre-interaction risk signals for any EVM contract/token address. USDC on Base via x402. Blockchain 1 $0.005 100.00% $4 13 BSE
Signalis Global intelligence for AI agents on x402: a 4-hourly Master Intelligence digest cross-synthesized from a 20-source roster — each digest reports the exact subset it used in its sourcesUsed field — plus Pulse, AI-business narrative intelligence (lifecycle-staged narratives, per-narrative detail, historical digests, raw content). Current digest is free to poll; history and Pulse settle per call in USDC on Base. Signalis is the dedicated home of this surface after the 2026-07 Moltalyzer product split; Moltalyzer's legacy /api/intelligence and /api/pulse routes permanently 308-redirect here. Data 4 $0.01 98.11% $6 ·sh 21 BSE
x402dir Facilitator Recommend Recommend the best x402 payment facilitator by chain, token, and monthly volume. Returns ranked facilitators with fee estimates as JSON. Paid via x402 at $0.001 USDC per query on Base. Data 1 $0.001 100.00% $0.005 1 BSE
Isocast Agents buy per-signal bundles via x402 and get pushed (Telegram) the instant a city's daily-high temperature crosses into a new Polymarket bucket — market URL, old/new reading, and live odds for every bucket. 37 cities. Data 2 $0.10 100.00% $2 5 BSE
OrcaTrace Polymarket intelligence on x402. Real-time prediction-market signals across 42K markets: quality-gated repricings with order-book microstructure, tracked-whale entries annotated with each wallet's hold-to-resolution calibration (follow/fade), and AI-detected predetermined-outcome markets — one unified, index-polled feed. The whale track record is verifiable and free. Paid endpoints settle per call via x402 (USDC on Base) — no account, no API key. Data 6 $0.01 98.11% $6 ·sh 21 BSE
Moltalyzer Agentic community intelligence — hourly digest of AI agent discussions (Moltbook). Free brief/latest/sample feeds; paid historical digests and a Viral Advisor that predicts post virality and suggests rewrites, settled per call via x402 (USDC on Base). AI 2 $0.02 98.11% $6 ·sh 21 BSE
Vindex Vehicle Intelligence for AI agents. Pay per call with x402 (USDC on Base) to decode any 17-char VIN with factory warranty terms ($0.01), read merged US (NHTSA) + Canada (Transport Canada) recalls ($0.01), get LLM-clustered known-issue reports with reliability aggregates ($0.05), and itemized used-car closing costs for all of Canada + 50 US states ($0.02). Free /v1/sample/* endpoints return every response shape. Informational data only — not a vehicle-history report. Data 4 $0.01 98.11% $3 9 BSE
gitBeacon GitHub trend intelligence for AI agents. A daily scan of trending new GitHub repos, LLM-analyzed into a structured digest (categories, language trends, emerging tools, notable projects, sentiment), plus the raw trending-repo rows behind it. Paid endpoints settle per call via x402 micropayments (USDC on Base) — no account, no API key. Data 2 $0.01 98.11% $6 ·sh 21 BSE
AgentFeed Real-time crypto and sports trading data for AI agents, paid per call in USDC via x402 on Solana and Base. No API keys, no accounts, no subscriptions. Records every liquidation across ~600 USDT perpetuals on Bybit, OKX and Binance — including Bybit's allLiquidation, the only complete unthrottled public liquidation stream among the major perp venues — and detects cascades in real time. Also serves sharp-money detection on World Cup betting odds, long/short positioning, open interest, funding rates, Pyth prices, and Solana token rug-risk checks. 18 tools over REST and MCP. Data 15 $0.001 100.00% $2 14 BSE / SOL
Japan Address API Normalize, geocode, and parse Japanese addresses. x402-enabled for AI agents. Data 6 $0.001 96.23% $3 ·sh 12 POL / SOL / BSE
zaref South African reference data for AI agents: 33 verified series (fuel prices, repo and prime rate, CPI, income tax tables, minimum wage, FX rates, bond yields, ZARONIA and more), two live feeds (government tenders, crypto ZAR prices) and 29 calculators, paid per call in USDC on Base via x402. Every value carries its official source URL, effective date and freshness flag. Every parameter is enumerated in the OpenAPI spec; unrecognised values are rejected with a free 400, never silently defaulted. Data 36 $0.005 100.00% $2 ·sh 22 BSE
AgentServices 50 paid data, market intelligence, and inference APIs for AI agents. Crypto prices, DeFi yields, on-chain analytics, portfolio intelligence, deep research. x402 micropayments via USDC on Base. MCP endpoint with 36 tools. Data 6 $0.01 100.00% $0.22 2 BSE
Agent402 Website Release & Offline Tools Five Base-USDC x402 developer resources: deterministic website release and x402 launch audits, a low-cost HTTPS preflight, and two offline toolkits. Public OpenAPI and x402 metadata are available on the service origin. AI 2 $5.99 100.00% $0 0 BSE
Producer by Suede Labs AI music and video generation agent selling fixed-price, pay-per-request media jobs via x402 and Virtuals ACP on Base. Original music generation, general video generation, and product showcase video. AI 2 $8.00 0.00% $0 0 BSE
MUGEN Radio Independent AI-run internet radio (24/7 lofi/ambient, publicly declared AI-generated, survival-mode budget shown live on mugenradio.com/status.html). Sells 44.1kHz WAV studio masters of released singles via x402 micropayments in USDC on Base. Catalog grown from 1 to 7 sellable tracks since first listed. Content 7 $0.15 100.00% $0 0 BSE
RelayShield Threat intelligence and identity-risk API: breach exposure, infostealer log detection, SIM-swap and session-hijack checks, ransomware victim lookup, and AI-agent-specific security checks (malicious MCP server detection, prompt-injection breach detection). 24 endpoints, all indexed in the Coinbase CDP Bazaar. Data 10 $0.10 100.00% $39 1 BSE / SOL
scrape402 66 pay-per-call HTTP APIs for AI agents over x402 (USDC on Base, no signup, no API keys): web scraping and JS-rendered page-to-markdown, web search, isolated code sandbox, LLM ask/classify/summarize, crypto and DeFi market data (spot, candles, order books, funding rates, yields, TVL, stablecoins), prediction-market odds, news and sentiment, plus agent utilities (KV memory, verifiable randomness, webhooks, notary, metered upstream gateways). Data 40 $0.002 100.00% $6 94 BSE
Qonoro Intelligence API Qonoro is an x402-native intelligence API for autonomous agents: structured, source-cited B2B intelligence and data enrichment, callable 24/7 with pay-per-call USDC on Base. Endpoints cover company enrichment, research & discovery, competitor and sales-signal analysis, lead qualification, person enrichment & search, hiring and job-change signals, intent signals, domain/tech intelligence, KYB entity verification, news sentiment, outbound personalization, and real-time validation/normalization utilities (email, phone, URL, address, domain resolution, NAICS). Every response is normalized JSON built for agent-to-agent workflows. All endpoints are live and x402-validated (indexed on Agentic/Bazaar via real settled USDC payments on Base). Per-call pricing starts at $0.005 depending on the endpoint. Additional intelligence agents are actively in development and will ship under the same api.qonoro.ai base. MCP server (PyPI): https://pypi.org/project/qonoro-mcp/ Data 21 $0.005 100.00% $13 12 BSE
find-my-json JSON utility API — shape, get, pluck, validate, repair, batch. 7 endpoints at $0.001-$0.01 each. USDC on Base via x402. Data 7 $0.001 0.00% $0.15 6 SOL / ARB / BSE / POL
nsgoods Agent Trust & Screening Oracle nsgoods, the verifiable trust layer for AI agents. Two products on one host: signed OFAC sanctions + malicious-address screening for any EVM or Solana address (deny/review/clean verdict), and cross-chain ERC-8004 reputation/trust scores (0-100). Every response ECDSA-signed and hash-chain provable, with a free preview on each. Part of a 6-oracle suite (aggregated manifest at https://x402.nsgoods.org/.well-known/x402). AI 3 $0.005 100.00% $2 5 BSE
Tunelo Agent APIs South African x402 micropayment APIs on Polygon: a live government tender feed ($0.02 USDC/call) and a SARS crypto-tax estimate ($0.005 USDC/call). Pay-per-call in USDC, no signup, built with @x402/express v2. Data 2 $0.005 100.00% $0.03 1 POL
Polymarket Liquidity Authenticity + UMA Resolution-Risk Per-market liquidity authenticity + UMA resolution-risk for Polymarket prediction markets, sold to AI trading agents via x402 ($0.20/call, USDC on Base). Returns whether apparent volume is broad/organic or concentrated/manufactured (HHI, effective traders, book cross-check, on-chain counterparties) AND the UMA resolution-risk on two axes: how often a category disputes on UMA x when disputed, how often the result FLIPS the original proposal vs just confirms, plus whether the criterion is objective (checkable) or subjective. Dispute-rate and flip-rate often invert by category - a two-axis read no other tool gives. Fact/base-rate, never a wash verdict nor per-market prediction. Also two /market-authenticity/{conditionId} and /x402-authenticity/{payTo} parameterized endpoints (see /openapi.json). Data 3 $0.05 100.00% $2 3 BSE
CryptoPulse Data API Pay-per-call crypto market intelligence for AI agents on Base mainnet (x402 v2, USDC). Spot prices, trending coins, Fear & Greed index, gas prices, OHLC candles, DEX pair liquidity/volume, ERC-20 rug-pull/honeypot risk checks, and top DeFi yields — $0.002 to $0.02 per call. Data 9 $0.002 100.00% $0.27 2 SOL / BSE
GPU Forge Pay-per-job GPU compute API. gpu.probe returns a live nvidia-smi GPU inventory ($0.01); llm.generate runs llama3.1:8b text generation ($0.05). USDC via x402 on Base and Polygon; accepts both standard signed-authorization payments (X-PAYMENT / payment-signature, self-settled) and direct-transfer X-Payment-Tx. Open source: https://github.com/ParabellumDevteam/gpu-forge Compute 2 $0.01 0.00% $0 0 BSE / POL
Groundcheck Groundcheck is verified enrichment for AI agents. Send a factual claim and it returns a machine verified verdict with a confidence score and cited sources, grounded against live web sources. Identity protocols verify who an agent is; Groundcheck verifies what it says. Single claim grounding is free. Paid endpoints over x402: claim extraction and instrument resolution at 0.005 USDC, document grounding at 0.02, and delivery attestation at 0.05, which returns a signed receipt binding the x402 payment to the delivered content, verifiable offline. v1 and v2 both accepted. No account and no API key. Data 4 $0.005 100.00% $0.21 1 BSE
Japan Furigana API Japanese text utilities: furigana, normalization, multi-reading names, classification. x402-enabled for AI agents. AI 6 $0.001 98.11% $3 ·sh 12 POL / BSE / SOL
vaaya The agent payment system: one MCP server that lets any agent call paid APIs — image/video gen, product demos, web search & scraping, deep/market research, lead enrichment, GTM, sandboxes, browser automation, email — pay-per-call, no API keys. AI 7 $0.01 100.00% $25 50 BSE
NewsMesh Real-time news API for AI agents. Search and filter articles from thousands of global sources. Data 4 $0.01 100.00% $0 0 BSE
Fabler Labs x402 Storefront Machine-payable API and product catalog, run autonomously by an AI agent (fablerlabs.com). Sells three security/dev-tooling API calls ($0.005–$0.05) and four digital product downloads ($19–$29), all payable via HTTP 402 + USDC on Base — no human account needed on the buyer side. Other 7 $0.005 100.00% $1 6 BSE
QueryLines Surplus lines market data, per query. U.S. excess & surplus (E&S) insurance premium and policy-count statistics from state stamping office publications: time series, YoY summaries, and cross-state comparison. $0.10 single-state query, $0.50 compare, USDC on Base via CDP facilitator. Free discovery endpoints (/v1/coverage, /v1/lines), no API keys. Also an MCP server at /mcp. Data 3 $0.10 100.00% $6 8 BSE
Relaystation Pay-per-call agent infrastructure with x402 v2 micropayments (USDC/EURC on Base): durable file storage & handoff (batons), 150+ compute ops (PDF, data/CSV, image, audio/video, text), agent-to-human messaging, e-signatures, ID verification, sanctions screening, and agent contracts. Sub-cent pricing; no account required — the wallet is the identity. OpenAPI: https://api.relaystation.ai/openapi.json · llms.txt: https://api.relaystation.ai/llms.txt · MCP: https://api.relaystation.ai/mcp Compute 4 $0.01 100.00% $8 10 BSE
Straits.live premium data Real-time Strait of Hormuz crisis data for AI agents: full vessel manifest with OFAC sanctions cross-reference, full-resolution transit and index history, one-call situation snapshot, and the complete daily brief. $0.01-$0.02 per request in USDC on Base, no key or account. Data 5 $0.01 100.00% $0.66 12 BSE
Kronos Crypto Data & Forecasts Pay-per-call real-time crypto market-data API for autonomous agents and trading bots. Covers 16 assets with derivatives intelligence (funding rates, open interest, basis), liquidation cluster maps, options implied volatility, multi-source spot pricing, macro context, and ML price forecasts. No API keys required — x402 USDC micropayments on Base mainnet. Prices range $0.001-$0.10 per call. Data 4 $0.02 100.00% $34 42 BSE
The Nervous System (agent governance x402 API) External governance layer for agent systems by Levels Of Self. Pay-per-call over x402: audit-chain verification, MCP config audit, legal-prep, bookkeeping. USDC on Base, no signup. AI 4 $0.005 100.00% $0.01 2 BSE
Heron Heron measures how visible a website is to AI search engines (ChatGPT, Claude, Perplexity, Gemini, Google AI Overviews) and returns a structured improvement plan. The x402 endpoint quotes a per-audit price in USDC on Base; agents pay and receive a machine-readable report. Name-your-price above a transparent floor is supported at /agent/quote. Free instant score at POST /api/audit; manifest at /.well-known/agent.json. AI 1 $0.250454 0.00% $0 0 BSE
NetIntel Pay-per-call network & domain intelligence API — DNS, SSL/TLS, WHOIS/RDAP, email security (SPF/DKIM/DMARC), IP geolocation/reputation/risk, OSINT, plus LLM-backed text tools (classify, translate, summarize, sentiment, structured-JSON extraction). 69 endpoints, USDC on Base via x402, no API keys — just a wallet. MCP server available (netintel-mcp). AI 37 $0.002 100.00% $39 80 BSE / SOL
anchor-x402 16 pay-per-call x402 services for AI agents: on-chain Merkle anchoring, wallet/address security screening, Web3 data resolution (tx & calldata decode, ENS name resolution), token pricing, content analysis, and verifiable randomness. No API keys or accounts. Settle per request on Base USDC, Solana USDC, or Polygon JPYC (1 yen / anchor) Blockchain 16 $0.001 100.00% $5 116 SOL / BSE / POL
HyperNatt Terminal HyperNatt Terminal for AI agents: multi-crypto liquidation radar (magnet, OI, clusters) + Li.Fi cross-chain swap. MCP surface = 3 tools v2.7.0 (get_agent_manifest, get_liq_radar, swap_via_nattswap). Whitelist BTC ETH SOL BNB XRP HYPE ZEC. Free: get_agent_manifest. Paid: get_liq_radar $0.001 USDC/call via x402 on Base+Solana. Swap free at MCP layer (you sign). Read-only, not trade advice. No custody. MCP: https://hypernatt.com/mcp/protocol | github.com/DIALLOUBE-RESEARCH/hypernatt-terminal Finance 6 $0.001 100.00% $0.64 11 BSE / SOL
AEO Audit API Answer Engine Optimization audit — scores any website visibility in AI assistants (ChatGPT, Claude, Perplexity, Gemini). Returns structured JSON with score 0-100, grade A-F, section breakdowns, issues, and actionable recommendations. Checks structured data, llms.txt, FAQ schema, semantic coverage, and agent-readability. AI 1 $0.25 100.00% $0 ·sh 0 BSE / BSP (testnet)
Sovereign Execution Engine 15 production-ready x402 execution primitives (USDC on Base). Workers: cross-chain routing, browser automation, EU AI Act + DSA + MiCA compliance audit, web search (Bing RSS), page extraction, DNS/SSL audit, KV storage, R2 storage. CF: LLM, STT Whisper, embeddings, image gen, cached LLM, headless browser, code execution in isolated Dynamic Worker sandbox (JS + Python, network blocked). Pay per call via x402. Self-hosted facilitator. AI 9 $0.001 0.00% $1 5 BSE
LogiGrain Deterministic calendrical, astronomical, and divination computation nodes for AI agents. Each endpoint performs exact calculations that LLMs cannot reliably reproduce—solar-term boundaries via apparent solar longitude (Meeus), sexagenary cycle pillars, full natal charts (planet longitudes, ASC/MC, houses, aspects), and Zi Wei Dou Shu charts—each with cited accuracy bounds in a meta field. Verified against primary sources (NAOJ, JPL, Meeus). Pay-per-call via x402 (USDC on Base, CDP facilitator). Other 4 $0.001 100.00% $0 0 BSE
WebberSites x402 Data API Pay-per-call data & utility API for AI agents — 40+ endpoints, USDC on Base via x402, from $0.001. Web scraping & summaries, PDF/DOCX/CSV extraction, crypto prices & market reports, IP geolocation & timezone, DNS & email checks, SEO / accessibility / schema.org audits (page & whole-site), music metadata & cover art, icon / logo / brand-kit / OG-card generation, image vectorization, multi-page website builds, a wallet-keyed agent datastore, and a machine message board. No accounts, no API keys. Data 37 $0.001 100.00% $4 72 BSE
Tantra Authority — The Naked Press catalog 49 signed AOP offers (courses, eBooks, products by Lawrence Lanoff / The Naked Press), each x402-buyable in USDC on Base mainnet. Catalog: https://index.adagencyforagents.com/v0/offers. Purchase pattern: https://api.tantra-authority.com/api/x402/{id}. Content 1 $19.97 100.00% $265 2 BSE
Weather Weather + nature intelligence: current conditions, 7-day forecasts, earthquakes, volcanoes, air quality, solar activity, and marine data. Multi-source (ECMWF, NOAA GFS, USGS, NASA) with premium AI reasoning endpoint for natural-language weather questions. Data 9 $0.000625 100.00% $3 ·sh 20 BSE / ARB / POL / AVX
Aviation x402 Real-time aviation data including flight tracking, airport information, aircraft types, and aviation weather. Pay-per-request via x402 micropayments. Data 3 $0.000625 100.00% $3 ·sh 20 POL / BSE / AVX / ARB
2s.io Keyless pay-per-call API for AI agents: 316 endpoints across 95+ groups. Patents & trademarks (USPTO), legal (CourtListener), government & economy (SEC EDGAR, Census, World Bank, Federal Register), finance/markets, science & medicine (arXiv, PubMed, ICD-10, drug data), vehicles & aviation (NHTSA), geo & weather (OpenStreetMap, NWS/NOAA, USGS), business registries (GLEIF LEI), sanctions screening (OFAC), cybersecurity (CVE/KEV/EPSS), and web/data utilities. No signup, no API key: pay per request in USDC on Base or Solana via x402. Machine-readable OpenAPI, llms.txt, JSON-LD, and MCP server card. Data 6 $0.0025 100.00% $54 208 SOL / BSE
GEDX402 Cloudflare Workers AI hub with x402 v2 USDC. Hero integrator funnel: scrape-lite, open-answer, cited-research-pack. https://gedx402.com/docs/integrator-quickstart AI 1 $0.0036 100.00% $7 47 BSE
VIGIL Keyless onchain security scanner for Base. 14 MCP tools incl honeypot detection, liquidity lock, approval simulation, and a 6-source consensus verdict. Free core checks; premium tools via x402 USDC on Base. Blockchain 3 $0.005 0.00% $0 0 BSE
SNTL Helium Intelligence Pay-per-query intelligence over the Helium DePIN network, settled on Solana. A datalake half a million records deep and growing — over a year of on-chain history, AI-enhanced and classified: threat heuristics, anomaly detection, yield-loss and yield-recovery attribution, hotspot configuration and location, and geo-spatial binding of blockchain activity (lat/long + time) to real economic events. The moment a wallet is flagged as an anomaly, its full causal history becomes queryable. Agents POST read-only SQL and receive structured rows — flat $0.01 USDC per query via standard x402 (PayAI facilitator), first tier free, no signup or API key; plus single-event lookup by transaction id and a free wallet-history endpoint. Built for Fleet Managers, Helium hotspot owners, and every party in the Helium ecosystem. Blockchain 1 $0.00 100.00% $0 0 SOL
Crest Wallet Intelligence Counterparty intelligence for the agent economy. Profile any x402 buyer or Base/EVM wallet before you transact: whale score, behavioral cluster, x402 spend graph, top services, and risk level. Plus on-chain and crypto market data (prices, gas, DeFi, derivatives). Pay-per-call in USDC on Base, no API keys, no subscription. Data 4 $0.002 0.00% $1 111 BSE
PayPerByte PayPerByte is a pay-per-call data gateway for AI agents — 22 first-party feeds and decision oracles billed in USDC over x402 on Base mainnet. A wallet, not an API key; no token. Every paid 200 carries a signed EIP-712 provenance receipt (X-BYTE-Attestation) so an agent can verify the data before it acts. Coverage spans DeFi/markets, weather, earthquakes, security advisories, code/runtime status, and decision oracles. Flagship: the Address Reputation Oracle — a signed ALLOW/WARN/BLOCK verdict on a receiving address before an agent releases funds ($0.05/call). Per-byte pricing from $0.003; settled in USDC via the Coinbase CDP facilitator. Data 22 $0.003 100.00% $4 13 BSE
aicomglobal The trust layer for the x402 economy: an Ed25519-signed, recomputable trust + reliability verdict over any third-party service for 0.05 USDC over x402, a clearing oracle for agent escrow, and an agent-to-agent message channel. Discovery and reading are always free; you pay only for portable signed proof. AI 2 $0.01 100.00% $0 0 BSE
Agent Web Reader (x402) Pay-per-call MCP server: crypto market signals, clean web-page text extraction, and GitHub repo SEO audits. USDC settlement via x402. Three paid tools at 0.005 USD each. Data 3 $0.002 100.00% $0.06 8 BSE
AnyAPI A unified marketplace for scraping/data APIs. Reach hundreds of third-party data APIs through one key; pay per request in USD; schemas normalized across providers with automatic failover. AI agents pay inline per call with no account via x402 (Base mainnet, USDC). 218 paid endpoints under POST /v1/run/{sku}. Data 3 $0.001 0.00% $5 19 BSE
agentutility Pay-per-call API catalog for AI agents - hundreds of x402 endpoints (PDF/document conversion, web scraping, transcription, image and video generation, on-chain and finance data, dev tools) payable in USDC on Base and Solana. No signup or API key; each endpoint advertises its own schema and price. AI 9 $0.002 100.00% $640 146 SOL / BSE
Curl HTTP Request Send an HTTP request to any URL from our servers and receive the full response — including the status code, all response headers, and the body content. Supports GET, POST, PUT, PATCH, DELETE, and HEAD. Automatically follows up to 3 redirects. Useful for testing endpoints, verifying servers are responding correctly, debugging redirect chains, or fetching raw data without needing a local setup Data 1 $0.01 100.00% $10 ·sh 27 BSE / SOL
Biotech Catalyst Sentinel Upcoming FDA PDUFA decision dates for US-listed biotechs, extracted from primary SEC 8-K/6-K filings (classify-before-extract, source-quote-grounded). Date accuracy is independently backtested — median 1-day error. Verify the accuracy proof FREE at /v1/accuracy before paying. $0.02/call, USDC on Base or Solana. Data 1 $0.02 100.00% $0.26 6 SOL / BSE
Invoket The checks AI agents run before they act: verify IBANs and screen sanctions before paying, phone lines before messaging, FR/EU laws in force before advising, weather before deciding, VINs and recalls before buying. Official sources (EPC, OFAC/EU/UN, LEGI/EUR-Lex, ERA5/GFS, NHTSA vPIC), provenance in every response. You only pay for answers. Data 68 $0.001 100.00% $11 44 SOL / BSE
txdecode Decode any confirmed Base (mainnet) transaction into a human-readable action plus normalized asset movements (token, amount, USD value). Pay-per-call via x402 — $0.005 USDC, no signup, no API key. Data 1 $0.005 100.00% $0 0 BSE
Jeeves-DeepSeek Pay-per-call DeepSeek chat API via x402 micropayments. No signup, no API keys -- just a USDC wallet on Base. Full chat completions endpoint compatible with any x402 client. AI 1 $0.0025 0.00% --- --- BSE
Bulk DMARC Record Lookup Give this tool a list of domain names and it will instantly check each one's DMARC email security record. DMARC is a standard that tells email providers how to handle fake or spoofed emails pretending to come from your domain. For each domain you submit, you get back whether a valid record exists, what the policy is (none, quarantine, or reject), whether reporting addresses are set up, and the full raw record text. Perfect for auditing many domains at once without any setup. Other 1 $0.01 100.00% $10 ·sh 27 SOL / BSE
Sivut Public Data APIs x402-paid public data APIs on Base USDC: SEC crypto filing radar, SEC CSV snapshots, filing markdown, x402 seller intelligence, seller scoring, page markdown, and public-site contact/opportunity briefs. Data 8 $0.003 0.00% $0 0 BSE
Greenwood Financial Intelligence Real-time SEC EDGAR insider trading signals, congressional STOCK Act disclosures, FEC political contribution monitoring, and compound signals — cross-referenced and scored. Pay per query via x402 on Base mainnet. No subscriptions, no API keys. Finance 7 $0.002 100.00% $0 0 BSE
Skim Skim is the x402-native clean reader for AI agents: send a URL, get back agent-ready markdown plus structured metadata in milliseconds. Pay per call in USDC over HTTP 402 - no signup, no API keys. In a production benchmark - 15 real paid calls to skim402.com over the public internet, each verifiable on-chain - Skim ran 2.3x faster than Firecrawl at the median. Its clean output also runs about 4x smaller than raw HTML, because it strips the ads, newsletter popups, and navigation your agent doesn't need. Endpoints for single reads, JS-rendered pages, batch reads, and structured extraction. Content 4 $0.002 100.00% $6 21 BSE
AsterPay Trust, discovery and EUR settlement layer for AI agent payments. KYA agent trust scoring (0-100) with sanctions screening and ERC-8004 identity, x402 micropayments, crypto/market analytics, and USDC to EUR SEPA Instant settlement aligned with MiCA. Finance 3 $0.001 100.00% $0.41 12 ARB / POL / BSE
AIScan AI visibility auditing for websites, pay-per-capability via x402 on Base. 15 endpoints: cheap HTTP checks (llms.txt, Schema.org, MCP discoverability) from 0.06 USDC, full category scores (AEO, GEO, Agent Readiness, MCP Readiness) 0.15-0.20, complete 80+ check audit 0.35, copy-paste fix generation 0.55, competitor gap analysis 0.80. The only scanner with MCP Readiness scoring. Free capability catalog at /api/agent/index. AI 15 $0.06 100.00% $0 0 BSE
PopaDex Personal Finance Reference API Read-only personal finance reference-data and calculation API for AI agents: tax estimates, disposable-income comparisons, sub-central tax rates, and social-security contribution data. Finance 4 $0.01 100.00% $0 0 BSE
LedgerBrain x402 KYA KYT KYE Compliance API x402 pay-per-use KYA, KYT, and KYE crypto compliance API for AI agents. Provides address risk reports, transaction risk screening, entity due diligence, compliance risk screening, and auditable report outputs via USDC payments on Base. No LedgerBrain API key required for x402 endpoints. Blockchain 3 $0.10 100.00% $2 3 BSE
TrustBoost PII Sanitizer Privacy firewall for autonomous AI agent pipelines. Sanitizes PII before text reaches LLMs. x402 native — returns HTTP 402 with PAYMENT-REQUIRED header. 8 languages including LATAM (RFC/CUIT/CPF). Proof of Sanitization anchored on Solana via Helius. EU AI Act compliant. AI 1 $0.01 100.00% $3 6 SOL / BSE
AgentLair AgentLair is identity, trust, and infrastructure for AI agents. Anonymous x402-payable endpoints: pay 0.001 USDC for an A2A AgentCard trust audit, 0.005 USDC to resolve an agent handle to its DID + JWKS, 0.01 USDC to query a trust score, or 0.0001 USDC to submit behavioral events. No API key required — payment is authentication. AI 5 $0.0001 100.00% $0 ·sh 0 BSE
WDH.sh — QR Codes QR code generation for agents, paid per call in USDC on Base via x402. Other 1 $0.001 100.00% $0.64 4 BSE
MadeOnSol MadeOnSol delivers real-time Solana memecoin intelligence via x402 micropayments — pay per request in USDC on Solana, no API keys or subscriptions. Endpoints cover a live KOL wallet trade feed (1,000+ tracked wallets), KOL convergence/coordination signals, PnL leaderboards, trading pairs, hot & trending tokens, and Pump.fun deployer alerts. Each call returns structured JSON with KOL identity, token details, and on-chain enrichment. Data 7 $0.005 100.00% $0 0 SOL
Insurance DOI Bulletin Feed (x402) Normalized state Department of Insurance bulletins and NAIC Model Law 668 adoption feed. Micropayment-gated REST API via x402 protocol. Supports Polygon (eip155:137) and Arbitrum (eip155:42161) chains with USDC payments. Pricing: $0.001/request for bulletins, $0.002/request for search. Data 4 $0.006 100.00% $0 0 POL / ARB
LiquidPad Pay-per-request LiquidPad endpoints. Verify whether a token was deployed via LiquidPad (ERC-8004 anchored), get full agent provenance with fee split, or read the full agents registry snapshot. Blockchain 3 $0.001 100.00% $0 0 BSE
TradeOS Crypto Intelligence Plain read-only crypto intelligence APIs for agents, dashboards, screeners, and research workflows. Finance 9 $0.15 0.00% $0.02 2 BSE
AgentHub Low-cost x402 utilities for AI agents: prompt-injection scanning, URL inspection, Markdown storage, JSON validation, sanitized page hosting, and website auditing. Paid endpoints use Base mainnet USDC via x402; fixed demos only show response shape. AI 6 $0.003 90.57% $0.02 1 BSE
Agent Tools 9 agent-native utility tools — DNS health, WHOIS, email validation, IP geolocation, URL health, HTTP headers analysis, QR codes, text extraction, tech stack detection. REST API + MCP server with x402 micropayments on Base mainnet. Data 9 $0.001 0.00% $0 0 BSE
GDELT News Intelligence API AI-friendly JSON API for global news intelligence built on GDELT. Provides recent news, sentiment, geographic distribution, translingual coverage, and entity graph endpoints via x402 payments on Base USDC. Data 5 $0.01 0.00% $0.38 3 BSE
SolSigs Real-time Solana data APIs plus ProofGuard receipts for AI agents: 22 specialist workers paid per call in USDC via x402 - DEX prices, arbitrage, wallet intelligence, launch detection, plus signed trust scores and payment/fulfillment receipts. No API keys, no subscriptions. Blockchain 22 $0.001 100.00% $0 0 SOL
websearch Obscura headless browser through a custom Rust API. ~100ms results. $0.01 Data 5 $0.01 100.00% $0.09 2 BSE
Fia Signals x402 crypto market-intelligence and token-risk API for autonomous agents, led by a delivery-verified /fear-greed checkout route on Base USDC. Finance 7 $0.03 100.00% $0.56 2 BSE
true402 The machine-native marketplace (bazaar) — agents discover and pay for services with HTTP 402 (USDC on Base). No accounts, no API keys; the wallet is identity. Stalls: LLM inference (OpenAI-compatible, 340+ models) and SEO/GEO web-page audit. AI 2 $0.0001 0.00% $0.14 2 BSE
EconDash Global macroeconomic data API with 753 indicators across 298 countries. AI agents get pay-per-call access to GDP, inflation, employment, trade, and other World Bank/FRED/OECD indicators. Returns structured JSON with time series, rankings, country profiles, and metadata. Designed for agent-driven economic analysis, dashboards, and automated research. Data 15 $0.02 98.11% $2 5 BSE
Crinkl Crinkl provides real-time, verified, identity-free commerce signals from U.S. consumers who are rewarded in Bitcoin for purchase participation. Agents can buy privacy-safe aggregate demand insights without raw receipts, wallet histories, or personal data. Data 6 $0.001 100.00% $0 0 SOL / BSE
402s.shop 12 utility endpoints (QR codes, screenshots, OG images, PDF rendering, web scraping, WHOIS, YouTube transcripts, AI summarization) priced from $0.001 USDC on Base mainnet. Two payment rails: x402 (autonomous, no signup, no key) or pre-paid credits (card / 100+ cryptos via NowPayments). Hosted MCP server included for Claude Desktop / Cursor / Cline. Other 12 $0.0011 0.00% $0 0 BSE
Askew Security and DeFi intelligence for AI agents. Live DeFi yield comparison across 5 chains (DefiLlama-sourced), SOL/ATOM staking routing (native vs liquid), Guardian security threat summary, agent-economy research search, and a combined strategic feed. USDC micropayments on Base mainnet via xpay.sh facilitator. Free preview at /yields/preview and /health. Finance 5 $0.002 50.94% $0 0 BSE
Find or Verify Email finder and verifier API, paywalled per-call with x402 (USDC on Solana). Data 3 $0.03 100.00% $0.45 1 SOL
SENTINEL Compliance Intelligence First comprehensive AML/CFT compliance oracle for the agent economy. Screen wallet addresses against 12,997+ sanctioned crypto addresses (OFAC SDN, USDT/USDC Blacklists, Ransomwhere, OpenSanctions, UK OFSI). Search 1.1M+ entities across OFAC/UN/EU sanctions, PEPs, Interpol wanted, World Bank debarment. 179-country jurisdiction risk scoring. Compound intelligence endpoints fuse wallet + entity + jurisdiction screening in one call. Plus Mauritius economic data oracle (forex, fuel, stocks, weather, macro, monetary). ERC-8004 Agent #27961 on Base. CDP Facilitator integrated. Finance 11 $0.001 100.00% $0.49 11 BSE
AxonGate AxonGate is an x402-paid Clean Context Broker on Base. It converts public web pages into clean Markdown for RAG, autonomous research, and LLM context preparation. Data 1 $0.03 100.00% $0 0 BSE
DeepBlue Trading API Pay-per-call crypto market intelligence: 5-min trading signals (BTC/ETH/SOL/XRP momentum), fear/greed index, on-chain whale tracking, Polymarket prediction market analytics. Live autonomous trading bot with verified track record. USDC via x402 (Base/Solana). Top-converters: /market-mood and /whale-moves at $0.01/call. Finance 12 $0.001 0.00% $0 0 BSE
Satoshi API Satoshi API is Bitcoin fee intelligence for AI agents. It gives wallets, bots, and agent workflows send-now-or-wait timing guidance, next-block fee pressure, transaction context, and fee-estimator accuracy through x402 pay-per-call endpoints. Data 5 $0.005 0.00% $0 0 BSE
Fly Labs Agentic Market Pay-per-call data APIs for AI agents. YouTube transcripts and engagement data settled in USDC on Base via x402. Versioned JSON schemas, no signup, no keys. Coinbase CDP facilitator. Data 2 $0.02 100.00% $0 0 BSE
AgentNews The frontpage of the agentic internet — AI agents bid to post, vote, and comment. All actions gated by x402 micropayments on Base. Content 3 $0.50 100.00% $0.50 1 BSE
Spraay Gateway Full-stack x402 gateway: AI inference, payments, oracle, analytics, comms, webhooks, RPC, storage, KYC, GPU compute, Search/RAG. ~60 endpoints. AI 4 $0.005 100.00% $3 39 BSE / SOL
AgentMail API-first email inboxes for AI agents. Full SDK surface is payment-gated: inboxes, messages, threads, attachments, websockets. AI 1 $2.00 98.58% $50 14 BSE / POL / AVX / SOL
Robtex DNS, IP, AS, and Lightning Network intelligence. 53 endpoints covering DNS lookups, reverse DNS, IP geolocation, BGP/ASN analysis, reputation scoring. Data 4 $0.005 100.00% $0 0 BSE
AskClaude Pay-per-query Claude (Haiku/Sonnet/Opus) plus 8 packaged tools. No subscription, no account. AI 5 $0.01 100.00% $0 0 BSE
Neynar Farcaster protocol data API (users, casts, feeds, reactions). x402 pay-per-request in USDC on Base. Data 3 $0.01 100.00% $8 7 BSE
Interzoid Data-quality APIs — name matching, company standardization, email validation, company intelligence. 50+ endpoints x402-payable. Data 3 $0.01 100.00% $41 33 BSE
Zerion Wallet, DeFi portfolio, and on-chain data API. Pay-per-request x402 on Base and Solana with no API key. Data 3 $0.01 100.00% $0.15 12 SOL / BSE
StableEmail Pay-per-send email via micropayments. AWS SES backend. Supports subdomains, inboxes, and replies. USDC on Base or Solana. AI 3 $0.02 100.00% $21 55 BSE / SOL
Mycelia Signal Signed cryptographic price oracle. Ed25519-signed canonical price/econ attestations for agent consumption. 38 price pairs + 19 econ indicators. Data 2 $0.01 100.00% $56 22 BSE
Browserbase Pay-per-use headless browser sessions for AI agents. No API keys, no accounts — pay with crypto via x402 on Base. Compute 2 $0.002 100.00% $0 0 SOL / BSE
Pinata Account-free public IPFS pinning, paid per upload via x402. No signup or API key required. Content 1 $0.001 100.00% $0.02 6 BSE
Venice AI Uncensored, privacy-preserving LLM and image API (OpenAI-compatible). x402 wallet top-up model with 10 USDC prepay. AI 1 $10.00 100.00% $436 21 SOL / BSE
Stakevia Pay-per-request Solana validator due-diligence reports. Blockchain 1 $1.00 100.00% $0 0 SOL
Otto AI AI-powered DeFi assistant swarm — 37 services covering market intel, news, token analytics, trading execution. Multi-chain (Base, Polygon, Solana). AI 3 $0.001 100.00% $152 436 BSE / SOL / POL
SocioLogic RNG Cryptographically secure RNG (CSPRNG with rejection sampling). Random ints, UUIDs, dice, coin flips, weighted samples. Data 3 $0.01 100.00% $0.87 9 BSE
QuickNode Blockchain RPC provider with x402-gated multi-chain access. Pay-per-request in USDC on Base with no API key. Compute 3 $0.0001 100.00% $0.09 1 AMOY (testnet) / BSE / SOLD (testnet) / BSP (testnet) / ARCT (testnet) / POL / SOL / XLYT (testnet)
Nansen On-chain analytics — wallet labels, Smart Money flows, Token God Mode. Monetized per-call via x402 on Base + Solana. Data 3 $0.01 100.00% $96 196 BSE / SOL
CoinMarketCap Pay-per-call cryptocurrency market data (quotes, listings, metadata) via x402 micropayments. Data 1 $0.01 100.00% $2 23 BSE
Messari Institutional crypto market intelligence — AI chat trained on 30TB+ data covering 40,000+ assets. USDC on Base or Solana. Data 1 $0.25 100.00% $48 19 SOL / BSE
CoinGecko Crypto price and on-chain DEX data API. x402-gated endpoints for agents — pay-per-call USDC on Base or Solana. Data 3 $0.01 100.00% $6 62 SOL / BSE
Snack Money Micropayment API — send USDC "Snacks" (tips, rewards) to social identities (X, Farcaster, GitHub, email, domain). Single and batch payments. Finance 3 $0.01 0.00% $0 0 BSE / SOL
Gloria AI Real-time crypto news intelligence — headlines with sentiment, feeds, recaps. Paid per-call in USDC on Base. Data 3 $0.03 100.00% $0.43 3 BSE
ActionGate x402 + Stripe billing proxy for APIs/MCP servers. Ships built-in safety tools: risk-scoring, simulation, policy-gate. AI 3 $0.02 100.00% $0.02 1 BSE
Exa AI-native semantic/neural web search API. Pay-per-query via x402 for agents without API keys. AI 1 $0.007 100.00% $39 153 BSE / SOL
Minifetch Composable URL/metadata/data extraction APIs — URL to markdown, structured data extraction. Data 1 $0.002 100.00% $0.39 18 BSE / SOL
GoldRush x402-native blockchain data — balances, NFTs, transactions, DEX, pricing across 100+ chains. Currently on Base Sepolia testnet. Data 2 $0.0001 100.00% --- --- BSP (testnet)
httpay Pay-per-call API marketplace — 300+ endpoints. Token intelligence, MEV risk, yield, copy-trade, gas-optimizer, universal gateway. Finance 3 $0.02 0.00% $0 0 BSE
534 of 534 services ── filtered: all