Find an agent your AI can call

• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  cueframe.ai
  Validate a composition body without saving it (dry-run) (3 paid endpoints on api.cueframe.ai.)
  3 endpoints
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  curl-http-request.underscoredone.com
  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 redirec…
  1 endpoint
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  currency-api-production-4a8d.up.railway.app
  Current price, market cap, and 24h change for a single cryptocurrency by symbol or name (CoinGecko). (3 paid endpoints on currency-api-production-4a8d.up.railway.app.)
  3 endpoints
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  data.finery.cc
  Search Singapore MOE schools by name or postal code (optional level filter). Results include the school directory joined with subjects offered, CCAs, MOE programmes and distinctive programmes. (2 paid endpoints on data.finery.cc.)
  2 endpoints
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  data.japanagent.dev
  Company name search across jurisdictions. jurisdiction=lei searches the global GLEIF LEI database (all countries); jurisdiction=jp searches the official Japan National Tax Agency corporate registry. Returns registered legal names, identifi… (3 paid endpoints on data.japanagent.dev.)
  3 endpoints
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  debyko.com
  Latest ticker, mark, funding, open interest and depth-derived values for crypto perpetuals on 16 venues, each with venue timestamp and age. DQL filter. (4 paid endpoints on api.debyko.com.)
  4 endpoints
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  dicex402.vercel.app
  Roll a dice with any number of faces. Specify faces via ?faces=N query parameter.
  1 endpoint
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  dns-intel-api-production.up.railway.app
  Reverse-DNS lookup for an IP: PTR record plus a best-effort list of other domains hosted on the same IP. (2 paid endpoints on dns-intel-api-production.up.railway.app.)
  2 endpoints
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  dns-whois-lookup.underscoredone.com
  Send up to 10 domain names and get back every DNS record type (A, AAAA, MX, CNAME, TXT, NS, PTR, SOA, SRV, CAA, NAPTR, DS, TLSA) plus the full WHOIS registration profile (registrar, dates, contacts, status, nameservers) for each one. URLs…
  1 endpoint
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  dns.halowerk.com
  Resolves A, AAAA, MX, NS, TXT, CAA and SOA, reads the WHOIS record of the responsible registry, checks SPF, DMARC and known DKIM selectors, opens a TLS handshake for issuer, validity, chain and SAN list, and collects subdomains from Certif… (11 paid endpoints on dns.halowerk.com.)
  11 endpoints
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  dns.use.x402atlas.com
  DNS A record lookup — resolve any hostname or domain to its IPv4 addresses, returned as a clean JSON list. For host resolution, connectivity and uptime checks, IP-reputation enrichment and infrastructure mapping. (6 paid endpoints on dns.use.x402atlas.com.)
  6 endpoints
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  dnsdoctor.dev
  One DNS Doctor bulk scan of 2-50 domains in a single call, priced per domain.
  1 endpoint
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  domain-availability-checker.underscoredone.com
  Give this API up to 10 domain names and it tells you whether each has a registration record at the official registry. It uses RDAP, the structured replacement for WHOIS, so there is no free-text parsing. Each domain comes back as 'register…
  1 endpoint
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  doseplot.com
  Ranked reconstitution suggestions for one published reconstitutable compound: bacteriostatic-water presets that put the published per-administration dose range's clean steps on whole U-100 syringe marks, with doses per vial. Refuses period… (5 paid endpoints on api.doseplot.com.)
  5 endpoints
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  duoleads.com
  Encode a WGS-84 latitude and longitude to a geohash at a chosen precision, or decode a geohash back to its bounding box, centre point and error bounds in metres. Encoding also returns the eight neighbouring cells, which is what a caller ne… (33 paid endpoints on api.duoleads.com.)
  12 endpoints
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  evidence.api.williamrobinson.dev
  Retrieve deterministic evidence from a public HTTPS page
  1 endpoint
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  exende.dev
  Create a temporary public webhook endpoint for AI agents and automated workflows that need to receive asynchronous callbacks from external services. Returns a callback URL plus read and wait endpoints. No server deployment, signup, API key…
  1 endpoint
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  faultcode-diagnostic-mcp.bowling-anthony.workers.dev
  What a vehicle fault code means, with source-attributed generic and make-specific definitions and any disagreement between sources stated.
  1 endpoint
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  geoip.bip-rep.com
  Resolve any public IPv4/IPv6 address (or hostname) to geolocation for analytics, fraud, and ops agents. Returns ISO country code, region, city, IANA timezone, latitude/longitude, EU membership flag, and the matched network range. Backed by…
  1 endpoint
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  geoprimitives.dev
  Give it a longitude and latitude and it answers with the IANA timezone identifier (America/New_York), the UTC offset in force there right now, whether daylight saving is currently in effect and by how much, the local wall-clock time, and t… (3 paid endpoints on api.geoprimitives.dev.)
  3 endpoints
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  globalrules-api.onrender.com
  List all 195 countries covered by the GlobalRules country-facts API, returned as ISO 3166-1 alpha-2 codes with country names. Use this endpoint first to discover which countries you can query for practical travel and business facts such as… (94 paid endpoints on globalrules-api.onrender.com.)
  12 endpoints
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  horrorstoryapi.vercel.app
  Access the exclusive horror story collection (pay-per-read).
  1 endpoint
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  hosaka-agents.vercel.app
  Use when you have a company domain and need to know what the company is before spending more. Returns the company name and site title, domain age, registrar, mail provider, DNS provider, DMARC and HTTPS status, and a count of the third-par…
  1 endpoint
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  http-header-checker.underscoredone.com
  Sends a request to a web address you provide and reports back everything the server said in response: the status code, all the response headers, how many times it got redirected, and how long the whole thing took.
  1 endpoint
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  http-status-checker.underscoredone.com
  Give this API a list of up to 10 web addresses and it will visit each one to tell you whether it is working, broken, or redirecting visitors somewhere else. You get back the exact status number (like 200 for OK, 404 for not found, 500 for…
  1 endpoint
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  interzoid.com
  Generate an AI-powered similarity key for individual/person name matching. Handles variations like 'Bob Smith', 'Robert Smith', 'Smith, Robert J.' producing the same key for matching and deduplication. (15 paid endpoints on api.interzoid.com.)
  12 endpoints
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  ip-geo-api-production.up.railway.app
  Geolocate an IPv4/IPv6 address: country, region, city, postcode, lat/lng, timezone, ISP, org, ASN, and a datacenter heuristic. (4 paid endpoints on ip-geo-api-production.up.railway.app.)
  4 endpoints
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  israel-counterparty-intelligence.vercel.app
  Monitor recent official Israeli company-registry changes for an exact nine-digit company number. Returns filing and status-change events newest first, with dates, deterministic categories, source URLs, and checked_at. Use for counterparty…
  1 endpoint
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  kari.mayim-mayim.com
  Observed Surface Comparison Facts API (4 paid endpoints on kari.mayim-mayim.com.)
  4 endpoints
• Live · checked Oct 12, 2026x402Developer toolsCommunity listed · unclaimed
  kevinhoff.com
  X Preflight: read a draft post against X's open-sourced ranking code. Returns what is already settled before you post, whether it enters the pool strangers are drawn from, how long it stays retrievable, which filters delete it, and which g…
  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.