{
 "id": "dev.workers.mike-tusa.checkdigit/checkdigit",
 "name": "CheckDigit",
 "description": "Offline check-digit validation for IBAN, BIC, EU VAT, GTIN/EAN/UPC and ISBN. Format check only.",
 "connect": {
  "transport": "streamable-http",
  "url": "https://checkdigit.mike-tusa.workers.dev/mcp"
 },
 "website": "https://checkdigit.mike-tusa.workers.dev/",
 "version": "0.2.1",
 "source": "official MCP registry (registry.modelcontextprotocol.io)",
 "reliability": {
  "verdict": "reliable",
  "attempts": 14,
  "successes": 14,
  "successRate": 1,
  "consecutiveSuccesses": 14,
  "lastStatus": "ok",
  "lastCheckedAt": "2026-10-19T18:25:44.290Z",
  "lastLatencyMs": 6634,
  "toolsAdvertised": 2,
  "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": "get_meta",
   "attempts": 14,
   "successes": 14,
   "successRate": 1,
   "consecutiveSuccesses": 14,
   "lastStatus": "ok",
   "lastMs": 3780,
   "sampleInput": "{}",
   "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.mike-tusa.checkdigit%2Fcheckdigit",
 "page": "https://faceabot.com/tools/dev.workers.mike-tusa.checkdigit/checkdigit",
 "badge": {
  "image": "https://faceabot.com/badge/dev.workers.mike-tusa.checkdigit/checkdigit.svg",
  "markdown": "[![Measured by Faceabot](https://faceabot.com/badge/dev.workers.mike-tusa.checkdigit/checkdigit.svg)](https://faceabot.com/tools/dev.workers.mike-tusa.checkdigit/checkdigit)",
  "note": "Live reliability badge the publisher of this server can show on its README or website."
 },
 "recentChecks": [
  {
   "at": "2026-10-19T18:25:44.290Z",
   "ok": 1,
   "status": "ok",
   "ms": 6634,
   "f_status": "ok"
  },
  {
   "at": "2026-10-19T04:35:44.878Z",
   "ok": 1,
   "status": "ok",
   "ms": 7598,
   "f_status": "ok"
  },
  {
   "at": "2026-10-18T12:35:42.766Z",
   "ok": 1,
   "status": "ok",
   "ms": 5481,
   "f_status": "ok"
  },
  {
   "at": "2026-10-18T03:10:41.436Z",
   "ok": 1,
   "status": "ok",
   "ms": 4749,
   "f_status": "ok"
  },
  {
   "at": "2026-10-17T19:10:41.368Z",
   "ok": 1,
   "status": "ok",
   "ms": 4984,
   "f_status": "ok"
  },
  {
   "at": "2026-10-17T10:50:42.283Z",
   "ok": 1,
   "status": "ok",
   "ms": 4784,
   "f_status": "ok"
  },
  {
   "at": "2026-10-17T03:05:44.977Z",
   "ok": 1,
   "status": "ok",
   "ms": 5076,
   "f_status": "ok"
  },
  {
   "at": "2026-10-16T19:25:45.076Z",
   "ok": 1,
   "status": "ok",
   "ms": 6724,
   "f_status": "ok"
  },
  {
   "at": "2026-10-16T12:20:53.316Z",
   "ok": 1,
   "status": "ok",
   "ms": 9562,
   "f_status": "ok"
  },
  {
   "at": "2026-10-16T05:25:58.556Z",
   "ok": 1,
   "status": "ok",
   "ms": 7165,
   "f_status": "ok"
  },
  {
   "at": "2026-10-15T22:35:47.566Z",
   "ok": 1,
   "status": "ok",
   "ms": 4640,
   "f_status": "ok"
  },
  {
   "at": "2026-10-15T15:36:22.449Z",
   "ok": 1,
   "status": "ok",
   "ms": 7497,
   "f_status": "ok"
  },
  {
   "at": "2026-10-15T09:01:02.613Z",
   "ok": 1,
   "status": "ok",
   "ms": 3946,
   "f_status": "ok"
  },
  {
   "at": "2026-10-15T02:30:30.146Z",
   "ok": 1,
   "status": "ok",
   "ms": 3188,
   "f_status": "ok"
  }
 ],
 "trust": {
  "access": "no sign-in needed",
  "tools": 2,
  "declaredReadOnly": 2,
  "declaredCanWrite": 0,
  "declaredDestructive": 0,
  "toolDefinitionsFingerprint": "e25b37cf675ddc5b6ee88d6c296b5002",
  "toolDefinitionsLastChangedAt": null,
  "toolDefinitionChangesSinceFirstSeen": 0,
  "firstSeenAt": "2026-10-17T19:10:41.536Z",
  "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."
 }
}