Find an agent your AI can call

• Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimed
  pathmint.edge.report
  BEFORE YOU PAY an x402 402: ping this resource URL. Returns live or dead (ghost listing, timeout, non-compliant host). One cent. Use when holding Payment-Required, before sending USDC to a payTo. Ghost x402, is this endpoint live, verify b… (2 paid endpoints on pathmint.edge.report.)
  2 endpoints
• Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimed
  paylog.dev
  8 Things That Tripped Me Up Implementing x402
  1 endpoint
• Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimed
  payperbyte.io
  USGS recent earthquakes worldwide (M2.5+) (2 paid endpoints on x402.payperbyte.io.)
  2 endpoints
• Live · checked Oct 12, 2026x402OtherCommunity listed · unclaimed
  penny-army-reference-mainnet.spruceboundgranitestudio.workers.dev
  Inventory supplied robots.txt groups, literal rule strings and sitemap declarations; no fetching or permission evaluation. (4 paid endpoints on penny-army-reference-mainnet.spruceboundgranitestudio.workers.dev.)
  4 endpoints
• Live · checked Oct 12, 2026x402OtherCommunity listed · unclaimed
  pennypress.org
  A fragment about the paved frontier. (24 paid endpoints on www.pennypress.org.)
  12 endpoints
• Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimed
  pennyregwatch.com
  Check robots.txt before crawling or scraping a page. Decide whether GPTBot, ClaudeBot, Googlebot, or another crawler may fetch the exact URL and return ALLOW/DENY, winning rule, crawl-delay, sitemap URLs, and live provenance. (7 paid endpoints on pennyregwatch.com.)
  7 endpoints
• Live · checked Oct 12, 2026x402Research & dataCommunity listed · unclaimed
  percallapi.com
  Lookup WHOIS records and domain availability in JSON format. Provide the domain name via ?domain=example.com to query registrar, status, and expiration dates. (5 paid endpoints on percallapi.com.)
  5 endpoints
• Live · checked Oct 12, 2026x402Research & dataCommunity listed · unclaimed
  perpsignals.use.x402atlas.com
  Crypto Fear & Greed index — the current market-sentiment score (0-100) and its label (Extreme Fear … Extreme Greed), as a clean snake_case envelope. (3 paid endpoints on perpsignals.use.x402atlas.com.)
  3 endpoints
• Live · checked Oct 12, 2026x402OtherCommunity listed · unclaimed
  peru-macro.use.x402atlas.com
  Latest Metropolitan Lima, Peru consumer price index (CPI) inflation from INEI via BCRP: monthly percentage change for inflation and purchasing-power analysis, not national CPI or an index level. (2 paid endpoints on peru-macro.use.x402atlas.com.)
  2 endpoints
• Live · checked Oct 12, 2026x402Research & dataCommunity listed · unclaimed
  phone.openverbs.com
  Parse, validate and format a phone number — E.164/national/international/RFC 3966, region and line type (syntactic validation, no carrier lookup).
  1 endpoint
• Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimed
  phoneagent.xyz
  PhoneAgent — countries with rentable SMS phone numbers for AI agents. Returns 190+ supported countries, each with the number of services offered and the cheapest price tier ($1, $2, or $5 USDC). Add ?service=<alias> (e.g. tg, wa, go, zo fo… (2 paid endpoints on api.phoneagent.xyz.)
  2 endpoints
• Live · checked Oct 12, 2026x402Research & dataCommunity listed · unclaimed
  physics.openverbs.com
  List every physical constant in the dataset, or only those in a given category (universal, adopted, electromagnetic, atomic, physico-chemical). Returns the constants, the total count and the set of available categories. (3 paid endpoints on physics.openverbs.com.)
  3 endpoints
• Live · checked Oct 12, 2026x402Research & dataCommunity listed · unclaimed
  places.openverbs.com
  Search Google's local business directory within a radius of a coordinate, filtered by category and/or a name query. Returns ranked businesses with name, category, star rating and review count, address, phone, website domain, place_id/CID a… (2 paid endpoints on places.openverbs.com.)
  2 endpoints
• Live · checked Oct 12, 2026x402Research & dataCommunity listed · unclaimed
  places.use.x402atlas.com
  Google Maps local business search — find places by query and map location (coordinates viewport), returning ratings, reviews, address, phone, website, hours & service options as clean JSON. (6 paid endpoints on places.use.x402atlas.com.)
  6 endpoints
• Live · checked Oct 12, 2026x402ProductivityCommunity listed · unclaimed
  poketpoker.com
  Deal one hand of Texas Hold'em against PoketPoker's bots and find out how your play compares. Five difficulty tiers; the top tier plays range-aware expected-value poker and beats every tier below it. Returns the table and a ticket; playing… (5 paid endpoints on poketpoker.com.)
  5 endpoints
• Live · checked Oct 12, 2026x402Finance & marketsCommunity listed · unclaimed
  polymarket-signal-api.pwnker-polymarket-signals.workers.dev
  PolySignal paper-trading performance summary, including win rate, ROI, PnL, open trades, settled trades, and tag-level breakdowns. (2 paid endpoints on polymarket-signal-api.pwnker-polymarket-signals.workers.dev.)
  2 endpoints
• Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimed
  polymarketeer.vercel.app
  Get detailed information for a specific Kalshi event by ticker symbol
  1 endpoint
• Live · checked Oct 12, 2026x402Research & dataCommunity listed · unclaimed
  polynews.news
  Real-time trade stream with market summaries (2hr rolling window, $500+ trades) (3 paid endpoints on polynews.news.)
  3 endpoints
• Live · checked Oct 12, 2026x402Trust & safetyCommunity listed · unclaimed
  poolproof.ru
  Yield pool safety: peg of every underlying asset, yield sustainability, emission dependence, exit depth (9 paid endpoints on poolproof.ru.)
  9 endpoints
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  port-scanner.underscoredone.com
  Give this API a hostname or IP address and it tries connecting to each port in your requested range. For every port that answers it reports whether it is open or blocked, which service is likely running there (a web server, SSH), and what…
  1 endpoint
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  postal.openverbs.com
  List every ISO 3166-1 alpha-2 country code for which a postal-code pattern is available. (4 paid endpoints on postal.openverbs.com.)
  4 endpoints
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  postcode-api-production.up.railway.app
  Look up a UK postcode: coordinates, country, region, council, ward, parish, parliamentary constituency, and ONS/NHS area codes. (5 paid endpoints on postcode-api-production.up.railway.app.)
  5 endpoints
• Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimed
  posttosource.com
  Convert a Twitter/X, LinkedIn, Medium, Substack, Beehiiv, or public Notion page URL into clean markdown.
  1 endpoint
• Live · checked Oct 12, 2026x402ProductivityCommunity listed · unclaimed
  ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws
  Email validation API. Checks whether a string is a syntactically valid email address using the same production-grade validation library trusted across the Node.js ecosystem, catching edge cases a quick regex misses. Returns true or false. (64 paid endpoints on ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws.)
  12 endpoints
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  predictionmarketdata.io
  Recent news relevant to prediction markets within a publish-date window. (8 paid endpoints on api.predictionmarketdata.io.)
  8 endpoints
• Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimed
  preflight.openverbs.com
  Fetch any URL and, without paying, decode its x402 402 Payment Required challenge: price (atomic and formatted for known stablecoins), asset, network, payTo, resource, description, timeout and any input schema. Flags MPP and Bazaar discove…
  1 endpoint
• Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimed
  premiumpin.com
  PremiumPin closed-catalog property search (3 paid endpoints on api.premiumpin.com.)
  3 endpoints
• Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimed
  preppers-paradise.com
  Paid book chapter (x402): Automate the Boring Stuff with Python: What Is Programming. Unit of a larger practical-skills library; free catalog at /library/discovery.json. Book slug: automatetheboringstuffwithpythonnew. Response format: Mark…
  1 endpoint
• Live · checked Oct 13, 2026x402Developer toolsCommunity listed · unclaimed
  prereason.com
  What changed since your last read: one page of PreReason's change events after a cursor. A briefing's state label, a tracked release, and, for the companies you name (?companies=, at most 200), newer figures, a situation turning on or file… (38 paid endpoints on api.prereason.com.)
  12 endpoints
• Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimed
  problocks.io
  Verify payment connectivity with USDC on Base. Returns a JSON pong and UTC timestamp after settlement.
  1 endpoint

For agents: /agents.json (paginated; same filters as this page), GET /api/v1/directory?q=, MCP tools search_agents / submit_agent, and the A2A agent at /a2a/directory. Community listings are copied from public registries (the official MCP Registry, the A2A Registry and the x402 Bazaar discovery list) and are unclaimed until their operator proves the domain. Checks are our own automated probes, not a guarantee.