x402 Data API
x402 data APIs that return market, on-chain, and reference datasets behind a pay-per-request HTTP 402 paywall. Each service below is live-monitored: hit an endpoint, receive a 402 with payment terms, settle onchain, and retry.
DATA SERVICES ── 231 total ── for live status visit /status
STATUS ── ● online · ◐ degraded · ○ offline · ─ unknown ── live health, see /status.
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 | DESCRIPTION | EP | FROM $/REQ | UPTIME 24H | VOL 30D | BUYERS 30D | NETWORKS |
|---|---|---|---|---|---|---|---|---|
| ◐ | 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. | 68 | $0.001 | 100.00% | $11 | 44 | 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. | 1 | $0.11 | 100.00% | $0 | 0 | POL/BSE |
| ● | Crypto OHLCV Candles (Binance data) | 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. | 1 | $0.05 | 100.00% | $0.02 ·sh | 11 | 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/ | 21 | $0.005 | 100.00% | $13 | 12 | 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. | 37 | $0.001 | 100.00% | $4 | 72 | BSE |
| ● | Find or Verify | Email finder and verifier API, paywalled per-call with x402 (USDC on Solana). | 3 | $0.03 | 100.00% | $0.45 | 1 | SOL |
| ● | Crypto Fear & Greed Index | 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. | 1 | $0.05 | 100.00% | $0.02 ·sh | 11 | BSE |
| ● | 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. | 1 | $0.137 | 100.00% | $0 | 0 | BSE/POL |
| ● | ComputePulse | 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. | 1 | $0.05 | 100.00% | $1 ·sh | 36 | SOL/BSE |
| ● | Global Crypto Market Stats (CoinGecko data) | 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. | 1 | $0.05 | 100.00% | $0.02 ·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. | 2 | $0.01 | 100.00% | $0.04 | 2 | BSE |
| ● | Perp Funding Rates (Binance data) | 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. | 1 | $0.05 | 100.00% | $0.02 ·sh | 11 | 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. | 5 | $0.01 | 100.00% | $0.66 | 12 | BSE |
| ● | ApiToll Reddit Scraper | 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. | 4 | $0.03 | 100.00% | $0.72 | 8 | BSE/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. | 4 | $0.002 | 100.00% | $0.08 ·sh | 13 | BSE/SOL |
| ● | DripMetrics AI | 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. | 10 | $0.05 | 100.00% | $19 | 8 | 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. | 2 | $0.10 | 100.00% | $2 | 5 | 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. | 1 | $0.005 | 100.00% | $0.08 | 2 | 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. | 6 | $0.01 | 100.00% | $0.22 | 2 | BSE |
| ● | SYNTHORA DNS + WHOIS Domain Report | 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. | 1 | $0.001 | 100.00% | $0.02 ·sh | 11 | BSE |
| ● | 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. | 1 | $0.12 | 100.00% | $0 | 0 | BSE/POL |
| ● | LaborPulse | US labor-market signal (jobs, unemployment, wages, JOLTS) | 1 | $0.05 | 100.00% | $1 ·sh | 36 | SOL/BSE |
| ● | PayAPI Market Weather Data API | 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. | 1 | $0.001 | 100.00% | $0.12 ·sh | 84 | 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 | 1 | $0.01 | 100.00% | $10 ·sh | 27 | BSE/SOL |
| ● | Package Evidence | Deterministic npm registry evidence for coding agents: dependency maps, integrity, provenance, factual metadata flags, and stable digests over x402. | 1 | $0.003 | 100.00% | $0.02 ·sh | 3 | SOL/BSE |
| ● | LoneStarOracle WeatherOracle | 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. | 1 | $0.02 | 100.00% | $1 ·sh | 36 | SOL/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. | 8 | $0.002 | 100.00% | $0.001 | 1 | BSE |
| ● | 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. | 1 | $4.99 | 100.00% | $0 | 0 | BSE |
| ● | 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. | 3 | $0.003 | 100.00% | $0.02 ·sh | 3 | BSE/SOL |
| ● | 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. | 21 | $0.002 | 100.00% | $0 | 0 | SOL/BSE |
| ● | 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. | 1 | $0.02 | 100.00% | $0.26 | 6 | SOL/BSE |
| ◐ | websearch | Obscura headless browser through a custom Rust API. ~100ms results. $0.01 | 5 | $0.01 | 100.00% | $0.09 | 2 | BSE |
| ● | Wikipedia Article Summary | 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. | 1 | $0.005 | 100.00% | $0.04 ·sh | 9 | POL/BSE/ARB/SOL |
| ● | 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. | 1 | $0.03 | 100.00% | $0 | 0 | BSE |
| ● | LeaseEdge | 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. | 1 | $0.15 | 100.00% | $1 ·sh | 36 | BSE/SOL |
| ● | ApiToll Facebook Ad Library | 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. | 4 | $0.03 | 100.00% | $0.33 | 6 | BSE/SOL |
| ● | 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. | 9 | $0.002 | 100.00% | $0.27 | 2 | SOL/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. | 20 | $0.005 | 100.00% | $6 | 25 | SOL/BSE |
| ● | x402scan | Paid x402 API from x402scan returning its ecosystem datasets: merchants, resources, buyers, facilitators and origin registry, priced per call in USDC on Base. | 8 | $0.01 | 100.00% | $12 | 49 | BSE |
| ● | glim.sh | Pay-per-call API returning live data from Twitter, Reddit, the web, GitHub, Amazon, YouTube and Telegram, plus a chat completions compatible inference endpoint. | 10 | $0.001 | 100.00% | $22 | 459 | BSE/SOL |
| ● | ForgeMesh Disruption Intelligence | 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. | 10 | $0.01 | 100.00% | $3 | 6 | BSE |
| ● | 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. | 2 | $0.005 | 100.00% | $0.14 | 8 | BSE |
| ● | RWA Risk | 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. | 1 | $0.10 | 100.00% | $1 ·sh | 36 | BSE/SOL |
| ● | 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. | 2 | $0.01 | 100.00% | $0 | 0 | BSE |
| ● | Nansen | On-chain analytics — wallet labels, Smart Money flows, Token God Mode. Monetized per-call via x402 on Base + Solana. | 3 | $0.01 | 100.00% | $96 | 196 | BSE/SOL |
| ● | 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. | 3 | $0.005 | 100.00% | $0 | 0 | BSE |
| ● | URL Unwrap / Redirect Tracer | 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. | 1 | $0.009 | 100.00% | $0.08 ·sh | 10 | POL/ARB/SOL/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). | 1 | $0.01 | 100.00% | $0.06 | 1 | BSE/SOL |
| ● | HTTP Security Headers Check | 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. | 1 | $0.01 | 100.00% | $0.11 ·sh | 13 | SOL/POL/BSE/ARB |
| ◐ | x402node | 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. | 10 | $0.004 | 100.00% | $91 ·sh | 212 | BSE/SOL |
| ● | 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. | 5 | $0.01 | 100.00% | $0.17 ·sh | 3 | BSE |
| ● | GoldRush | x402-native blockchain data — balances, NFTs, transactions, DEX, pricing across 100+ chains. Currently on Base Sepolia testnet. | 2 | $0.0001 | 100.00% | --- | --- | BSP |
| ● | 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. | 2 | $0.05 | 100.00% | $0 | 0 | BSE |
| ● | Messari | Institutional crypto market intelligence — AI chat trained on 30TB+ data covering 40,000+ assets. USDC on Base or Solana. | 1 | $0.25 | 100.00% | $48 | 19 | SOL/BSE |
| ● | LoneStarOracle WhaleAlert | 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. | 1 | $0.05 | 100.00% | $1 ·sh | 36 | BSE/SOL |
| ● | Deepline GTM API | 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. | 2 | $0.10 | 100.00% | $185 | 115 | BSE |
| ● | StrategicMaterials | 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. | 1 | $0.05 | 100.00% | $1 ·sh | 36 | SOL/BSE |
| ● | ForgeMesh Fare Intelligence | 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. | 1 | $0.10 | 100.00% | $0.20 | 2 | BSE |
| ● | Apify Agentic Endpoint (AGI) | 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. | 1 | $1.00 | 100.00% | $319 ·sh | 37 | SOL/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. | 4 | $0.03 | 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). | 1 | $0.02 | 100.00% | --- | --- | |
| ● | 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. | 3 | $0.002 | 100.00% | $0.06 | 8 | BSE |
| ● | Neynar | Farcaster protocol data API (users, casts, feeds, reactions). x402 pay-per-request in USDC on Base. | 3 | $0.01 | 100.00% | $8 | 7 | 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. | 8 | $0.03 | 100.00% | $0.12 | 1 | BSE |
| ● | SocioLogic RNG | Cryptographically secure RNG (CSPRNG with rejection sampling). Random ints, UUIDs, dice, coin flips, weighted samples. | 3 | $0.01 | 100.00% | $0.87 | 9 | BSE |
| ● | SuVerse Freight Load Position | 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. | 1 | $0.02 | 100.00% | $5 ·sh | 29 | BSE/SOL |
| ● | SYNTHORA Open Interest Oracle | 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. | 1 | $0.10 | 100.00% | $0.02 ·sh | 11 | 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. | 2 | $0.01 | 100.00% | $0 | 0 | POL/ARB/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. | 2 | $0.001 | 100.00% | $0.004 | 3 | SOL/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. | 2 | $0.005 | 100.00% | $0.03 | 1 | POL |
| ● | Hirescrape | 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. | 5 | $0.00225 | 100.00% | $2 | 19 | 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. | 1 | $0.03 | 100.00% | $0.17 ·sh | 3 | BSE |
| ● | StableEstate | 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. | 10 | $0.01 | 100.00% | $4 | 17 | 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. | 8 | $0.008 | 100.00% | $6 | 14 | BSE |
| ● | CyclePulse | 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. | 1 | $0.05 | 100.00% | $1 ·sh | 36 | SOL/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. | 10 | $0.05 | 100.00% | $0 | 0 | BSE |
| ● | AgriPulse | 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. | 1 | $0.03 | 100.00% | $1 ·sh | 36 | SOL/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. | 6 | $0.003 | 100.00% | $9 | 4 | SOL/BSE |
| ◐ | IPIntel.ai x402 Tools | 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. | 10 | $0.001 | 100.00% | $0.07 ·sh | 25 | 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. | 4 | $0.002 | 100.00% | $0 | 0 | BSE/POL/ARB/SOL |
| ● | Robtex | DNS, IP, AS, and Lightning Network intelligence. 53 endpoints covering DNS lookups, reverse DNS, IP geolocation, BGP/ASN analysis, reputation scoring. | 4 | $0.005 | 100.00% | $0 | 0 | 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. | 15 | $0.001 | 100.00% | $2 | 14 | BSE/SOL |
| ● | 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. | 4 | $0.002 | 100.00% | $0.007 | 2 | BSE |
| ◐ | NewsMesh | Real-time news API for AI agents. Search and filter articles from thousands of global sources. | 4 | $0.01 | 100.00% | $0 | 0 | BSE |
| ● | DEX Token Price (GeckoTerminal data) | 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. | 1 | $0.05 | 100.00% | $0.02 ·sh | 11 | BSE |
| ● | 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. | 6 | $0.01 | 100.00% | $0 | 0 | SOL/BSE |
| ● | ForgeMesh Travel Agent | 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. | 6 | $0.01 | 100.00% | $0.46 | 6 | 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. | 10 | $0.10 | 100.00% | $39 | 1 | SOL/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. | 1 | $0.01 | 100.00% | $0.02 | 1 | BSE |
| ● | Hyperliquid Perps Snapshot | 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. | 1 | $0.02 | 100.00% | $0.02 ·sh | 11 | 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. | 8 | $0.01 | 100.00% | $0 | 0 | BSE |
| ● | Gloria AI | Real-time crypto news intelligence — headlines with sentiment, feeds, recaps. Paid per-call in USDC on Base. | 3 | $0.03 | 100.00% | $0.43 | 3 | BSE |
| ● | DNS & WHOIS Domain Lookup | 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. | 6 | $0.005 | 100.00% | $0.93 ·sh | 18 | ARB/POL/SOL/BSE |
| ● | x402watch | 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. | 2 | $0.005 | 100.00% | $6 ·sh | 218 | BSE/SOL |
| ● | 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. | 8 | $0.005 | 100.00% | $0.01 | 2 | BSE |
| ● | LoneStarOracle GeoPulse | 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. | 1 | $0.07 | 100.00% | $1 ·sh | 36 | SOL/BSE |
| ● | IPIntel.ai Satellite & GeoRisk API | 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. | 4 | $0.002 | 100.00% | $0.07 ·sh | 25 | BSE |
| ● | CoinGecko | Crypto price and on-chain DEX data API. x402-gated endpoints for agents — pay-per-call USDC on Base or Solana. | 3 | $0.01 | 100.00% | $6 | 62 | SOL/BSE |
| ● | Zerion | Wallet, DeFi portfolio, and on-chain data API. Pay-per-request x402 on Base and Solana with no API key. | 3 | $0.01 | 100.00% | $0.15 | 12 | 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). | 15 | $0.001 | 100.00% | $0.04 | 4 | BSE |
| ● | Usenami | 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. | 10 | $0.001 | 100.00% | $2 | 11 | BSE |
| ● | SYNTHORA DeFi Data (Hyperliquid perp feed) | 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. | 1 | $0.05 | 100.00% | $0.02 ·sh | 11 | BSE |
| ● | Google Trends SEO Keyword Data | 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. | 4 | $0.03 | 100.00% | $63 ·sh | 17 | SOL/ARB/POL/BSE |
| ● | 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. | 11 | $0.003 | 100.00% | $0 | 0 | SOL |
| ● | ip402.xyz | Paid IP intelligence endpoint returning normalized geolocation and ASN data for a single IPv4 or IPv6 address. | 1 | $0.01 | 100.00% | $0.98 | 16 | SOL/BSE |
| ◐ | ReadX | 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. | 10 | $0.01 | 100.00% | $17 | 24 | SOL/BSE |
| ● | SYNTHORA x402 Registry Watch | 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. | 1 | $0.05 | 100.00% | $0.02 ·sh | 11 | BSE |
| ● | OT Intel API | 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. | 10 | $0.01 | 100.00% | $27 | 8 | BSE |
| ● | GovEdge | 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. | 1 | $0.20 | 100.00% | $1 ·sh | 36 | SOL/BSE |
| ● | 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. | 3 | $0.005 | 100.00% | $0.36 ·sh | 5 | BSE |
| ● | SupplyChainPulse | 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. | 1 | $0.05 | 100.00% | $1 ·sh | 36 | SOL/BSE |
| ● | Apify Actors API | 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. | 5 | $1.00 | 100.00% | $315 ·sh | 36 | BSE |
| ● | ForgeMesh Utility APIs | 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. | 10 | $0.001 | 100.00% | $2 | 31 | BSE |
| ● | Hugen Weather API | 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. | 2 | $0.01 | 100.00% | $6 ·sh | 424 | BSE/SOL |
| ◐ | Aviation x402 | Real-time aviation data including flight tracking, airport information, aircraft types, and aviation weather. Pay-per-request via x402 micropayments. | 3 | $0.000625 | 100.00% | $3 ·sh | 20 | BSE/POL/AVX/ARB |
| ● | StableEnrich | 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. | 10 | $0.002 | 100.00% | $1.6k | 535 | BSE/SOL |
| ◐ | 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. | 22 | $0.003 | 100.00% | $4 | 13 | 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. | 3 | $0.005 | 100.00% | $6 | 6 | BSE |
| ● | twit.sh | 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. | 10 | $0.0025 | 100.00% | $524 | 161 | BSE |
| ● | FundingRates | 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. | 1 | $0.05 | 100.00% | $1 ·sh | 36 | BSE/SOL |
| ● | TradePulse | 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. | 1 | $0.05 | 100.00% | $1 ·sh | 36 | 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. | 4 | $0.25 | 100.00% | $0.50 | 1 | BSE |
| ● | 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. | 3 | $0.04 | 100.00% | $0.05 | 1 | BSE |
| ● | SuVerse Pay | 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. | 10 | $0.001 | 100.00% | $14 ·sh | 31 | BSE/SOL |
| ● | Crypto 24h Trading Stats (Binance data) | 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. | 1 | $0.03 | 100.00% | $0.02 ·sh | 11 | 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. | 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. | 13 | $0.001 | 100.00% | $0.01 | 1 | BSE |
| ● | Mycelia Signal | Signed cryptographic price oracle. Ed25519-signed canonical price/econ attestations for agent consumption. 38 price pairs + 19 econ indicators. | 2 | $0.01 | 100.00% | $56 | 22 | BSE |
| ● | Places & Local Business Search | 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. | 6 | $0.02 | 100.00% | $0.52 ·sh | 17 | SOL/POL/BSE/ARB |
| ◐ | 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. | 4 | $0.006 | 100.00% | $0 | 0 | ARB/POL |
| ● | 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. | 3 | $0.01 | 100.00% | $0 | 0 | BSE |
| ◐ | 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). | 40 | $0.002 | 100.00% | $6 | 94 | BSE |
| ● | GridPulse | US electricity grid data for 7 regions: demand, generation mix by source (renewable, gas, nuclear) and grid stress signals, sourced from EIA-930. | 1 | $0.03 | 100.00% | $1 ·sh | 36 | BSE/SOL |
| ● | 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. | 36 | $0.005 | 100.00% | $2 ·sh | 22 | BSE |
| ● | KR Crypto Intelligence | 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. | 10 | $0.001 | 100.00% | $6 ·sh | 218 | SOL/POL/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. | 2 | $0.02 | 100.00% | $0 | 0 | BSE |
| ● | RegimeShift Clearinghouse | 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. | 2 | $0.001 | 100.00% | $0.45 | 16 | 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. | 1 | $0.001 | 100.00% | $0.005 | 1 | BSE |
| ● | 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. | 4 | $0.005 | 100.00% | $0.21 | 1 | 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. | 4 | $0.001 | 100.00% | $0 | 0 | BSE/SOL |
| ● | SYNTHORA Crypto News Sentiment | 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. | 1 | $0.10 | 100.00% | $0.02 ·sh | 11 | BSE |
| ● | ConsumerPulse | 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. | 1 | $0.05 | 100.00% | $1 ·sh | 36 | BSE/SOL |
| ● | CrownBlock | 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. | 1 | $1.00 | 100.00% | $1 ·sh | 36 | BSE/SOL |
| ● | 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. | 6 | $0.001 | 100.00% | $0 | 0 | SOL/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. | 5 | $0.005 | 100.00% | $24 | 1 | BSE |
| ● | 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. | 22 | $0.002 | 100.00% | $6 | 5 | BSE |
| ● | Scout Multi-Source Intelligence API | 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. | 10 | $0.01 | 100.00% | $6 ·sh | 424 | BSE/SOL |
| ● | Domain Intelligence API | 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. | 1 | $0.02 | 100.00% | $6 ·sh | 424 | SOL/BSE |
| ● | TensorFeed | 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. | 10 | $0.02 | 100.00% | $4 | 21 | SOL/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. | 6 | $0.01 | 100.00% | $0 | 0 | BSE |
| ● | ApiToll Multi-Chain EVM Gas | 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. | 1 | $0.001 | 100.00% | $0.22 ·sh | 22 | 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. | 3 | $0.05 | 100.00% | $0 | 0 | BSE/SOL |
| ● | 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. | 8 | $0.01 | 100.00% | $0.07 | 3 | BSE |
| ● | 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). | 3 | $0.05 | 100.00% | $2 | 3 | BSE |
| ● | TeleSint | 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. | 10 | $0.01 | 100.00% | $4 | 6 | 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. | 7 | $0.005 | 100.00% | $0 | 0 | SOL |
| ● | CoinMarketCap | Pay-per-call cryptocurrency market data (quotes, listings, metadata) via x402 micropayments. | 1 | $0.01 | 100.00% | $2 | 23 | BSE |
| ◐ | Interzoid | Data-quality APIs — name matching, company standardization, email validation, company intelligence. 50+ endpoints x402-payable. | 3 | $0.01 | 100.00% | $41 | 33 | 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. | 14 | $0.05 | 100.00% | $11 | 6 | BSE |
| ● | IndustrialMetals | Industrial metals prices with momentum signals, category analysis, and AI brief | 1 | $0.05 | 100.00% | $1 ·sh | 36 | BSE/SOL |
| ● | Vibe Springs | 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. | 10 | $0.002 | 100.00% | $62 | 54 | BSE |
| ◐ | StableTravel | 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. | 10 | $0.0054 | 100.00% | $182 | 96 | BSE/SOL |
| ● | 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. | 3 | $0.10 | 100.00% | $6 | 8 | BSE |
| ● | PayAPI Market UK Property Data API | 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. | 2 | $0.001 | 100.00% | $0.12 ·sh | 84 | BSE |
| ● | 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. | 3 | $0.002 | 100.00% | $0.72 ·sh | 11 | BSE |
| ● | 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. | 1 | $0.02 | 100.00% | $0 | 0 | BSE |
| ● | 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. | 9 | $0.001 | 100.00% | $0.05 | 1 | BSE |
| ● | Apple App Store Search, Reviews & App Data | 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. | 3 | $0.02 | 100.00% | $0.52 ·sh | 17 | SOL/BSE/ARB/POL |
| ● | 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). | 8 | $0.01 | 100.00% | $0.02 | 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. | 35 | $0.001 | 100.00% | $2 | 2 | BSE |
| ● | GDELT News Search and Timeline | 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. | 2 | $0.005 | 100.00% | $0.15 ·sh | 9 | SOL/ARB/BSE/POL |
| ● | Email Auth Check (SPF/DMARC/DKIM) | 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. | 1 | $0.01 | 100.00% | $1 ·sh | 11 | SOL/POL/BSE/ARB |
| ◐ | 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. | 9 | $0.000625 | 100.00% | $3 ·sh | 20 | ARB/POL/BSE/AVX |
| ● | cn402 | 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. | 10 | $0.0022 | 100.00% | $91 ·sh | 212 | SOL/BSE |
| ● | PayAPI Market UK Vehicle Data API | UK vehicle data by registration plate: DVLA vehicle details, MOT test history, tax status and CO2 emissions. | 1 | $0.001 | 100.00% | $0.12 ·sh | 84 | BSE |
| ● | UK HMO Licence API | 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. | 3 | $0.02 | 100.00% | $0.12 ·sh | 84 | BSE |
| ● | IPIntel.ai IP Lookup & Risk API | 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. | 1 | $0.001 | 100.00% | $0.07 ·sh | 25 | BSE |
| ● | Linked Panda | 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. | 10 | $0.01 | 100.00% | $91 | 57 | 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. | 1 | $0.03 | 100.00% | $0.02 ·sh | 3 | SOL/BSE |
| ● | Hacker News Stories & Search | 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. | 10 | $0.01 | 100.00% | $16 | 14 | BSE |
| ● | SYNTHORA Keyless Web Search | 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. | 1 | $0.05 | 100.00% | $0.02 ·sh | 11 | BSE |
| ● | Minifetch | Composable URL/metadata/data extraction APIs — URL to markdown, structured data extraction. | 1 | $0.002 | 100.00% | $0.39 | 18 | BSE/SOL |
| ● | OnchainPulse | 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. | 10 | $0.015 | 100.00% | $272 | 110 | SOL/BSE/ARB/POL |
| ● | Polymarket Prediction Markets Feed | 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. | 1 | $0.05 | 100.00% | $0.02 ·sh | 11 | BSE |
| ● | PayAPI Market UK Company Data API | Search UK companies by name using Companies House data. Returns matching companies with company number, status, type, incorporation date and registered address. | 1 | $0.001 | 100.00% | $0.12 ·sh | 84 | BSE |
| ● | 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. | 6 | $0.0025 | 100.00% | $54 | 208 | SOL/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. | 4 | $0.02 | 100.00% | $34 | 42 | BSE |
| ● | SYNTHORA Derivatives Intel Bundle | 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. | 1 | $0.32 | 100.00% | $0.02 ·sh | 11 | BSE |
| ● | LoneStarOracle TokenLaunch | 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. | 1 | $0.05 | 100.00% | $1 ·sh | 36 | BSE/SOL |
| ● | 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. | 1 | $0.005 | 100.00% | $0 | 0 | BSE |
| ● | StableSocial | 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. | 10 | $0.06 | 100.00% | $398 | 128 | SOL/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. | 4 | $0.01 | 98.25% | $3 | 9 | 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. | 15 | $0.02 | 98.25% | $2 | 5 | 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. | 1 | $0.02 | 98.25% | $0.10 | 2 | 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. | 3 | $0.001 | 98.25% | $0.36 ·sh | 5 | 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. | 4 | $0.01 | 98.25% | $6 ·sh | 21 | BSE |
| ● | Japan Transit API | Real-time train delays + delay-aware alternative routes for Japan rail. x402-enabled for AI agents. | 7 | $0.001 | 98.25% | $3 ·sh | 12 | SOL/BSE/POL |
| ● | 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. | 2 | $0.01 | 98.25% | $6 ·sh | 21 | 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. | 6 | $0.01 | 98.25% | $6 ·sh | 21 | BSE |
| ● | Japan Address API | Normalize, geocode, and parse Japanese addresses. x402-enabled for AI agents. | 6 | $0.001 | 96.49% | $3 ·sh | 12 | BSE/POL/SOL |
| ● | Japan Diet API | Japanese Diet members and full-text minutes search over the official National Diet Library archive. x402-enabled for AI agents. | 4 | $0.004 | 96.43% | $0 | 0 | SOL/BSE/POL |
| ● | 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. | 3 | $0.002 | 94.74% | $0.15 | 5 | SOL/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. | 1 | $0.10 | 85.96% | $0 | 0 | BSE |
| ○ | 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. | 1 | $0.01 | 0.00% | $0 | 0 | BSE |
| ○ | 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. | 14 | --- | 0.00% | --- | --- | |
| ○ | 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). | 1 | --- | 0.00% | --- | --- | |
| ○ | 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. | 4 | $0.002 | 0.00% | $1 | 111 | 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). | 8 | $0.001 | 0.00% | $0.09 | 2 | BSE |
| ○ | Public Holidays API (Nager.Date) | 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. | 1 | $0.001 | 0.00% | --- | --- | 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. | 5 | $0.01 | 0.00% | $0.38 | 3 | 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. | 7 | $0.001 | 0.00% | $0.15 | 6 | BSE/SOL/ARB/POL |
| ○ | SYNTHORA Stablecoin Supply | Returns real-time circulating supply and per-chain breakdown for major stablecoins, sourced from DefiLlama. | 1 | $0.001 | 0.00% | --- | --- | 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. | 3 | $0.003 | 0.00% | $2 | 31 | BSE |
| ○ | SYNTHORA Stablecoin Peg Monitor | 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. | 1 | $0.01 | 0.00% | --- | --- | BSE |
| ○ | Web Search, News & Page Reader | 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. | 3 | $0.01 | 0.00% | --- | --- | SOL/ARB/BSE/POL |
| ○ | 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). | 11 | $0.005 | 0.00% | $2 | 11 | BSE |
| ○ | Wikipedia Article Summary | 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. | 1 | $0.001 | 0.00% | --- | --- | BSE |
| ○ | Twitter/X Advanced Tweet Search | 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. | 1 | $0.005 | 0.00% | --- | --- | BSE/ARB/SOL/POL |
| ○ | SYNTHORA Trending Coins | 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. | 1 | $0.02 | 0.00% | --- | --- | BSE |
| ○ | 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. | 1 | $0.01 | 0.00% | $0 | 0 | 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. | 8 | $0.003 | 0.00% | $0 | 0 | BSE |
| ○ | Order Book Liquidity (Binance depth) | 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. | 1 | $0.01 | 0.00% | --- | --- | 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}. | 3 | $0.001 | 0.00% | $5 | 19 | 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. | 5 | $0.005 | 0.00% | $0 | 0 | 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. | 3 | $0.05 | 0.00% | $0 | 0 | BSE |
| ○ | Resonant Glyph Research Synthesis | Cross-domain research synthesis. $0.05 per query via x402. | 1 | $0.05 | 0.00% | --- | --- | BSP |
| ○ | Agent Utility Shop | Paid x402 APIs and downloadable toolkits for autonomous agents, procurement, engineering data, structured-data QA, clinical research and sourced analysis. | 13 | $0.03 | 0.00% | $0.96 | 4 | 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. | 5 | $0.001 | 0.00% | $0 | 0 | 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. | 3 | $0.005 | 0.00% | $1 | 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. | 9 | $0.001 | 0.00% | $0 | 0 | BSE |
| ○ | VIN Decoder (NHTSA vPIC) | 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. | 1 | $0.002 | 0.00% | --- | --- | BSE |
231 of 231 services ── category: Data ── all services