{
 "id": "dev.workers.soloearn.x402-seller-kit/x402-checker",
 "name": "x402 endpoint checker",
 "description": "Test any x402 paid URL without paying: 402, PAYMENT-REQUIRED, USDC, amounts, payTo, EIP-712, CORS.",
 "connect": {
  "transport": "streamable-http",
  "url": "https://x402-seller-kit.soloearn.workers.dev/mcp"
 },
 "website": "https://x402-seller-kit.soloearn.workers.dev/tools/x402-checker",
 "version": "1.0.0",
 "source": "official MCP registry (registry.modelcontextprotocol.io)",
 "reliability": {
  "verdict": "reliable",
  "attempts": 38,
  "successes": 38,
  "successRate": 1,
  "consecutiveSuccesses": 38,
  "lastStatus": "ok",
  "lastCheckedAt": "2026-10-19T15:05:44.260Z",
  "lastLatencyMs": 7661,
  "toolsAdvertised": 1,
  "method": "MCP initialize + tools/list from Faceabot, identified as FaceabotProbe/1.0 plus, when the server declares a read-only tool (readOnlyHint), one call of that tool with a neutral sample input to check it really returns a result. Servers on the 2026-07-28 MCP revision (no initialize handshake) get the same checks in that revision",
  "work": {
   "verdict": "proven_working",
   "tool": "check_x402_endpoint",
   "attempts": 38,
   "successes": 38,
   "successRate": 1,
   "consecutiveSuccesses": 38,
   "lastStatus": "ok",
   "lastMs": 2866,
   "sampleInput": "{\"url\":\"https://example.com\"}",
   "method": "Faceabot calls one read-only tool (annotations.readOnlyHint) with a neutral sample input and checks that it returns a non-empty result without error."
  }
 },
 "details": "https://faceabot.com/api/catalog?id=dev.workers.soloearn.x402-seller-kit%2Fx402-checker",
 "page": "https://faceabot.com/tools/dev.workers.soloearn.x402-seller-kit/x402-checker",
 "badge": {
  "image": "https://faceabot.com/badge/dev.workers.soloearn.x402-seller-kit/x402-checker.svg",
  "markdown": "[![Measured by Faceabot](https://faceabot.com/badge/dev.workers.soloearn.x402-seller-kit/x402-checker.svg)](https://faceabot.com/tools/dev.workers.soloearn.x402-seller-kit/x402-checker)",
  "note": "Live reliability badge the publisher of this server can show on its README or website."
 },
 "recentChecks": [
  {
   "at": "2026-10-19T15:05:44.260Z",
   "ok": 1,
   "status": "ok",
   "ms": 7661,
   "f_status": "ok"
  },
  {
   "at": "2026-10-18T23:55:43.036Z",
   "ok": 1,
   "status": "ok",
   "ms": 6554,
   "f_status": "ok"
  },
  {
   "at": "2026-10-18T09:00:54.580Z",
   "ok": 1,
   "status": "ok",
   "ms": 7402,
   "f_status": "ok"
  },
  {
   "at": "2026-10-18T01:15:42.391Z",
   "ok": 1,
   "status": "ok",
   "ms": 4127,
   "f_status": "ok"
  },
  {
   "at": "2026-10-17T17:05:42.042Z",
   "ok": 1,
   "status": "ok",
   "ms": 5260,
   "f_status": "ok"
  },
  {
   "at": "2026-10-17T09:00:57.028Z",
   "ok": 1,
   "status": "ok",
   "ms": 6782,
   "f_status": "ok"
  },
  {
   "at": "2026-10-17T01:05:42.528Z",
   "ok": 1,
   "status": "ok",
   "ms": 4264,
   "f_status": "ok"
  },
  {
   "at": "2026-10-16T17:55:50.916Z",
   "ok": 1,
   "status": "ok",
   "ms": 4562,
   "f_status": "ok"
  },
  {
   "at": "2026-10-16T10:50:54.806Z",
   "ok": 1,
   "status": "ok",
   "ms": 7859,
   "f_status": "ok"
  },
  {
   "at": "2026-10-16T04:01:29.711Z",
   "ok": 1,
   "status": "ok",
   "ms": 4918,
   "f_status": "ok"
  },
  {
   "at": "2026-10-15T21:05:48.213Z",
   "ok": 1,
   "status": "ok",
   "ms": 5525,
   "f_status": "ok"
  },
  {
   "at": "2026-10-15T14:16:01.706Z",
   "ok": 1,
   "status": "ok",
   "ms": 4729,
   "f_status": "ok"
  },
  {
   "at": "2026-10-15T07:35:29.848Z",
   "ok": 1,
   "status": "ok",
   "ms": 3634,
   "f_status": "ok"
  },
  {
   "at": "2026-10-15T01:05:28.864Z",
   "ok": 1,
   "status": "ok",
   "ms": 3302,
   "f_status": "ok"
  },
  {
   "at": "2026-10-14T18:40:16.733Z",
   "ok": 1,
   "status": "ok",
   "ms": 5690,
   "f_status": "ok"
  },
  {
   "at": "2026-10-14T12:10:35.491Z",
   "ok": 1,
   "status": "ok",
   "ms": 5212,
   "f_status": "ok"
  },
  {
   "at": "2026-10-14T05:46:12.305Z",
   "ok": 1,
   "status": "ok",
   "ms": 7914,
   "f_status": "ok"
  },
  {
   "at": "2026-10-13T23:01:41.307Z",
   "ok": 1,
   "status": "ok",
   "ms": 6323,
   "f_status": "ok"
  },
  {
   "at": "2026-10-13T16:55:49.866Z",
   "ok": 1,
   "status": "ok",
   "ms": 5595,
   "f_status": "ok"
  },
  {
   "at": "2026-10-13T10:46:04.319Z",
   "ok": 1,
   "status": "ok",
   "ms": 8332,
   "f_status": "ok"
  }
 ],
 "trust": {
  "access": "no sign-in needed",
  "tools": 1,
  "declaredReadOnly": 1,
  "declaredCanWrite": 0,
  "declaredDestructive": 0,
  "toolDefinitionsFingerprint": "0804d3e1315ad07d6bd66651fd70a965",
  "toolDefinitionsLastChangedAt": null,
  "toolDefinitionChangesSinceFirstSeen": 0,
  "firstSeenAt": "2026-10-18T01:15:42.554Z",
  "protocol": "2025-06-18",
  "warnings": [],
  "note": "Facts observed by Faceabot when it last read this server's tool list. 'Can write' counts tools not declared read-only (annotations are self-declared). A changed fingerprint means tool names, descriptions or schemas changed since Faceabot first saw them: re-check before trusting an earlier approval."
 }
}