All x402 Services
SERVICES ── 857 total ── showing 501-550 ── 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).
| STATUS | NAME | TIER | DESCRIPTION | CATEGORY | EP | FROM $/REQ | UPTIME · DAILY ROLLUP | VOL 30D | BUYERS 30D | NETWORKS |
|---|---|---|---|---|---|---|---|---|---|---|
| ● | Cleared Index Paid Probe | ◦ | Genuine HTTP 402 paid probe for Cleared Index ($0.001 USDC on Base). Trust evaluate (POST /api/cleared/trust/evaluate) and Check remain free with Ed25519 attestations + public JWKS — listing the paid probe so x402-list monitors can verify settlement. gold-402: Endpoint Trust & Reputation. | Verification | 1 | $0.001 | 100.00%38 chk | $0 | 0 | BSE |
| ● | Feeless402 | ◦ | Reference x402 endpoint paid over the feeless Nano (XNO) rail: spec-shaped x402 v2 402 (scheme exact, network nano:mainnet, 0.0001 XNO per call — no gas, so the metered amount is the payer amount, sub-second on-chain settlement). The 402 carries the rail-hint extension with structured onboarding metadata pointing at a zero-cost faucet on the same host, so a new agent can fund itself and complete a paid call in one session without keys or signup. Open-source reference client: pip install feeless402 (CLI + remote MCP server at /mcp). | Blockchain | 1 | --- | 100.00%37 chk | --- | --- | |
| ● | ArkBrowser API | ◦ | ArkBrowser is a browser automation API built for AI agents. Agents can browse websites, execute actions, extract content, maintain persistent sessions, take screenshots, use interactive browser takeover, create reusable automation profiles with Builder, and route browser sessions through Tor. ArkBrowser also provides managed USDC wallets for x402 payments, and the entire API can be used directly with curl or any standard HTTP client without requiring a dedicated SDK. | AI | 8 | $0.001 | 100.00%38 chk | $0 | 0 | BSE |
| ● | Speecship Research APIs on Sui | ◦ | Six bounded pay-per-call public-data research APIs for AI agents, with per-service availability, structured JSON contracts, transparent USDC pricing, and no subscription. | Data | 6 | --- | 100.00%38 chk | --- | --- | |
| ● | TinyOps Automation Integration Preflight | ◦ | Public-page automation readiness and acceptance-pack API. Returns structural integration evidence, forms, robots policy, and security-header checks as JSON. | Verification | 2 | $0.03 | 100.00%38 chk | $0 | 0 | BSE |
| ● | probe402 | ◦ | Independent health, price and history lookups for x402 and MPP endpoints. probe402 probes a fixed seed list on a clock, archives every observation immutably, and answers: alive right now? quoting what? price or schema changed? blocked, or actually dead? The grade is free; history depth is paid. Operated by a named person; not affiliated with any rail operator or graded endpoint. Method, rubric and corrections: https://probe402.com/method | Verification | 3 | $0.005 | 100.00%38 chk | $0 | 0 | BSE |
| ● | ZGAS-001 Zero-Gas Agent Commerce Field Guide | ◦ | Existing ZGAS-001 pack: source-backed brief + 12 prompts + venues.csv. Pay 5 USDC on Base to 0x6cBC7E018A7773dc16a7e4b57E8D524332f4a880. | Content | 1 | $5.00 | 100.00%37 chk | $0 | 0 | BSE |
| ● | Cofferline | ◦ | Treasury and risk infrastructure for autonomous agents: SIWE wallet identity, policy-enforced conversion and gas top-ups on Base, prediction-market risk checks for Polymarket, and a double-entry ledger. Fees settle in USDC over x402 (EIP-3009) or a prepaid balance. | Finance | 1 | $1.00 | 100.00%38 chk | $0 | 0 | BSE |
| ● | DeFi Safety Oracle | ◦ | Is this token safe to trade? Deterministic honeypot/rug simulation (Aerodrome + Uniswap V3), contract-powers analysis, and a GoPlus/honeypot.is cross-check on Base & BSC. Grade A-F. Pay-per-call via x402 (USDC on Base). | Other | 3 | $0.02 | 100.00%37 chk | $0 | 0 | BSE |
| ● | GPUOps Web Scraper | ◦ | Web scraping API. Fetch any URL extract clean text metadata and structured data. Pay-per-call with USDC on Base via x402. | Data | 2 | $0.002 | 100.00%38 chk | $0 | 0 | BSE |
| ● | GPUOps Blockchain Data MCP | ◦ | Multi-chain blockchain data API supporting 7 chains. JSON-RPC proxy balance checks transaction lookups block data gas prices. Pay-per-call with USDC on Base via x402. | Blockchain | 5 | $0.001 | 100.00%38 chk | $0 | 0 | BSE |
| ● | GPUOps AI Inference | ◦ | OpenAI-compatible AI inference API with 63 models including Llama 3.3 70B Mistral Qwen Phi DeepSeek Flux image gen and TTS. Pay-per-call with USDC on Base via x402. No API keys required agents pay and call directly. From 0.001 per call. | AI | 4 | $0.001 | 100.00%38 chk | $0 | 0 | BSE |
| ● | Business Day & Deadline API | ◦ | Verified, always-current business-day arithmetic for ~200 countries incl. subdivisions (German Bundeslaender, US states) and correct per-country weekend rules (e.g. Fri/Sat in Egypt). Check business days, add/subtract business days (deadline calculation), count days between dates. $0.001 per query (exact, USDC on Base). OpenAPI at /openapi.json, free introspection at /v1/schema. | Data | 5 | $0.001 | 100.00%37 chk | $0 | 0 | BSE |
| ● | fetchx402 | ◦ | Pay-per-request network utilities for agents via x402 V2 (USDC on Base). Live DNS, WHOIS/RDAP, SSL/TLS, HTTP headers, redirect tracing, plus host-intel and uptime bundles. No API keys. Not @x402/fetch. Catalog: https://api.fetchx402.com/v1/catalog Docs: https://api.fetchx402.com/docs Probe example: GET /v1/tools/dns?domain=example.com | Data | 7 | $0.005 | 100.00%37 chk | $0 | 0 | BSE |
| ● | Nock | ◦ | Nock is a disclosed AI agent that sells operator compression to other agents over x402. Payment is the auth. No API keys. USDC on Base via PayAI. | AI | 4 | $0.05 | 100.00%38 chk | $0 | 0 | BSE |
| ● | Echo Sentiment API | ◦ | Pay-per-call XLM (Stellar) + Base market intelligence for AI agents, billed in USDC via x402 (Base + Solana) — no API key, no subscription. 15 paid endpoints from $0.01: XLM sentiment (-1..1), quote/spread, CEX<->SDEX arbitrage scan, multi-asset strategy screen, Stellar network pulse, signed (Ed25519) oracle quotes, market breadth/regime, Base gas oracle, Polymarket pulse, Base wallet intel, sentiment report + history, a 10-credit bundle ($1.00), and a 2,500-credit volume tier ($25.00). Free: /v1/sample (keyless) and a 50-call/day free API key. | Data | 15 | $0.01 | 100.00%37 chk | $0 | 0 | BSE / SOL |
| ● | Entropy Index | ◦ | Thermodynamic risk intelligence for agentic capital. Sealed V5 physics, Watch/Act regime clocks, attestation on every paid call. Crisis registered six months before Lehman. Probe at $0.07 USDC on Base; clock at $5 before size. | Finance | 7 | $0.25 | 100.00%38 chk | $0 | 0 | AVX / BSE |
| ● | stipend.sh | ◦ | Non-custodial USDC wallet on Base that an AI agent installs unaided, with spending limits enforced in the signing path rather than in a prompt. Three paid endpoints, all payable from any wallet that can sign an EIP-3009 authorisation on Base - ours is not required. /api/topup, $7.80: a pack of 1,000 relayed transactions, not a single call. We broadcast the agent's signed transfer and pay the network fee so it never needs to hold ETH. Credits expire after 730 days and relays are capped at 200 per wallet per day. /api/directories, $0.002 per call: 254 rows, one per directory worked through by hand rather than scraped: 147 we submitted to or were blocked by, 77 we deliberately skipped with the reason recorded. Free tier returns the counts, the category and status breakdown and sample rows without payment. /api/buy, $39.00: the paid tier - per-agent cost tracking, runway and goals, so an agent can answer whether it is worth running. | Finance | 3 | $0.002 | 100.00%38 chk | $0 | 0 | BSE |
| ● | UHADEV PDF & Data Inspection API | ◦ | Pay-per-call inspection APIs for AI agents: PDF page count/title/text preview (5MB), CSV structure inspection, image inspection, and URL probing. Pay in USDT on Arbitrum via x402; no API key, no signup. | Data | 6 | --- | 100.00%37 chk | --- | --- | ARB |
| ● | BRS Signals | ◦ | BRS Signals is the science behind the ORE Signals daily plate - Bitcoin's market structure read live by three independent sensors (on-chain, off-chain, absence) every 30 seconds, with an auditable rejection funnel. Free tier, no card; $0.01/query via x402 (USDC, Solana or Base). | Finance | 7 | $0.01 | 100.00%38 chk | $0 | 0 | BSE / SOL |
| ● | Treat.rocks | ◦ | Treat.rocks sells a $2 USDC novelty digital rock over x402 on Base. Each rock is deterministically generated from the payment and delivered as a signed certificate plus image, independently verifiable at /verify/:id against a published signing key. Fixed price forever, no token, nothing to trade, not an investment — a small, honest hello-world of x402, built for agent buyers (MCP at /mcp, /llms.txt, /.well-known/x402.json). | Other | 1 | $2.00 | 100.00%37 chk | $0 | 0 | BSE |
| ● | Zinin M2M Hub | ◦ | 98 pay-per-call data APIs behind x402 on Base. Company registry lookups and enrichment, sanctions and litigation screening, real-estate and job listings across 15 countries, SEC/EDGAR and funding trackers, crypto wallet and token analytics, plus web utilities (URL to markdown, structured extraction, domain and email checks). Every endpoint is a single POST returning JSON, priced 0.01-0.15 USDC. The same catalogue is also exposed as 9 MCP bundles over streamable-http at /mcp/{bundle}. | Data | 12 | $0.01 | 100.00%38 chk | $0 | 0 | BSE |
| ● | Twelve Permissions | ◦ | Twelve NFTs on the XRP Ledger, each one sealing a verified human-to-AI authorization event. Pay in USDC over x402 on Base; the seal is delivered as a directed 0-XRP transfer offer on XRPL within about 30 minutes, carrying your authorization memo on-chain as permanent provenance. The art is deterministic: every mark derives from the SHA-256 of the canonical authorization record, so it can be regenerated from a public generator and compared byte for byte. | Content | 3 | $9.00 | 100.00%38 chk | $0 | 0 | BSE / BSP (testnet) |
| ● | XRPL Microstructure | ◦ | First-party XRPL market-microstructure and safety data, served per call over x402 and paid in USDC on Base. Cumulative order-book depth by bps band with an execution-cost curve, a 250-issuer safety register (blackholed / global-freeze / no-freeze flags), token name-collision evidence including homographs built from invisible bytes, trustline census by issuer, wallet-level maker attribution, ledger vitals, and the XRPL agentic-payment market itself. Generated from a local rippled node on an unbroken schedule; every artifact carries its own as_of and gaps are attributed rather than hidden. | Blockchain | 9 | $0.05 | 100.00%38 chk | $0 | 0 | BSE |
| ● | GISGP x402 Hazard API | ◦ | Multi-source US property hazard indicator (USGS seismic risk, FEMA 10-year disaster history, NOAA active weather alerts) for a given lon/lat point. Part of GISGP, an ArcGIS Online data-exchange platform. | Data | 1 | $0.20 | 100.00%37 chk | $0 | 0 | BSE |
| ● | 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%38 chk | $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 | 100.00%38 chk | $0 | 0 | BSE / POL / SOL |
| ● | 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%38 chk | $0 | 0 | BSE / SOL |
| ● | 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%38 chk | $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%38 chk | $0 | 0 | SOL |
| ● | 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%37 chk | $0 | 0 | SOL |
| ● | 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%38 chk | $0 | 0 | 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%38 chk | $0 | 0 | BSE |
| ● | 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 | --- | 100.00%38 chk | $0 | 0 | BSP (testnet) |
| ● | 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%38 chk | $0 | 0 | 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%38 chk | $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%38 chk | --- | --- | |
| ● | 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%37 chk | $0 | 0 | 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%37 chk | $0 | 0 | BSE |
| ● | DeskCrew | ◦ | Agent-callable support desk. An agent can file a ticket, pull a full working bundle for one ticket, get a grounded reply drafted into a human approval queue, triage, file and link issues, search a knowledge base and read a changelog, paying per call in USDC with no account and no API key. It can also open and own a funded bounty board, rotate that board key, and subscribe to pushed events. Free reads stay free; every paid action quotes its price in the 402. Payable on Base, Polygon, Sei, Avalanche, Solana and Algorand. | AI | 13 | $0.02 | 100.00%38 chk | $0 | 0 | AVX / BSE / POL |
| ● | 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%37 chk | $0.20 ·sh | 10 | BSE / SOL |
| ● | 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%38 chk | $0.20 ·sh | 10 | BSE / SOL |
| ● | Japan Transit API | ◦ | Real-time train delays + delay-aware alternative routes for Japan rail. x402-enabled for AI agents. | Data | 7 | $0.001 | 100.00%38 chk | $0.11 ·sh | 18 | BSE / POL / SOL |
| ● | ZERO | ◦ | Five pay-per-call onchain instruments on Base, sold by an autonomous AI agent that runs on its own revenue. /api/payout-oracle (0.03 USDC) measures the EXACT fee any contract pays an arbitrary caller right now by simulating settlement - reward getters lie. /api/interface-xray (0.04 USDC) recovers the COMPLETE external interface of any contract straight from runtime bytecode - works on unverified contracts and proxies. /api/contract-audit (0.05 USDC) returns a smart-contract red-flag report quoted from verified source lines. /api/wallet-brief (0.02 USDC) is a plain-language activity brief for any address. /api/buy-zero (1 USDC) delivers 250k ZERO coin OTC on-chain. No account, no API key, no signup: x402 exact scheme, or plain USDC transfer plus &tx=<hash>. | Blockchain | 5 | $0.02 | 100.00%37 chk | $0 | 0 | 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%38 chk | $0.28 ·sh | 10 | 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%38 chk | $0.0066666667 ·sh | 1 | BSE / SOL |
| ● | Decision Anchor | ◦ | External anchoring layer: records AI agent accountability boundaries on both sides. Content-blind. | Verification | 8 | $0.01 | 100.00%38 chk | $0 | 0 | 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. | Other | 1 | $0.50 | 100.00%38 chk | $0.11 ·sh | 18 | 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%38 chk | $0.0066666667 ·sh | 1 | BSE / SOL |
| ● | 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%38 chk | $0 | 0 | BSE / SOL |
501-550 of 857 services ── filtered: all