{
 "id": "com.cairnsafe/cairn",
 "name": "Cairn",
 "description": "Workplace safety citation counts, penalties and 29 CFR standards data for AI assistants",
 "connect": {
  "transport": "streamable-http",
  "url": "https://cairnsafe.com/mcp"
 },
 "website": "https://cairnsafe.com/developers/mcp",
 "version": "1.1.0",
 "source": "official MCP registry (registry.modelcontextprotocol.io)",
 "reliability": {
  "verdict": "reliable",
  "attempts": 14,
  "successes": 14,
  "successRate": 1,
  "consecutiveSuccesses": 14,
  "lastStatus": "ok",
  "lastCheckedAt": "2026-10-19T11:05:43.257Z",
  "lastLatencyMs": 6888,
  "toolsAdvertised": 3,
  "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": "top_cited_standards",
   "attempts": 14,
   "successes": 14,
   "successRate": 1,
   "consecutiveSuccesses": 14,
   "lastStatus": "ok",
   "lastMs": 3229,
   "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=com.cairnsafe%2Fcairn",
 "page": "https://faceabot.com/tools/com.cairnsafe/cairn",
 "badge": {
  "image": "https://faceabot.com/badge/com.cairnsafe/cairn.svg",
  "markdown": "[![Measured by Faceabot](https://faceabot.com/badge/com.cairnsafe/cairn.svg)](https://faceabot.com/tools/com.cairnsafe/cairn)",
  "note": "Live reliability badge the publisher of this server can show on its README or website."
 },
 "recentChecks": [
  {
   "at": "2026-10-19T11:05:43.257Z",
   "ok": 1,
   "status": "ok",
   "ms": 6888,
   "f_status": "ok"
  },
  {
   "at": "2026-10-18T18:30:50.599Z",
   "ok": 1,
   "status": "ok",
   "ms": 5024,
   "f_status": "ok"
  },
  {
   "at": "2026-10-18T06:15:46.855Z",
   "ok": 1,
   "status": "ok",
   "ms": 7909,
   "f_status": "ok"
  },
  {
   "at": "2026-10-17T22:20:46.772Z",
   "ok": 1,
   "status": "ok",
   "ms": 8229,
   "f_status": "ok"
  },
  {
   "at": "2026-10-17T14:01:09.057Z",
   "ok": 1,
   "status": "ok",
   "ms": 9581,
   "f_status": "ok"
  },
  {
   "at": "2026-10-17T06:05:45.749Z",
   "ok": 1,
   "status": "ok",
   "ms": 7578,
   "f_status": "ok"
  },
  {
   "at": "2026-10-16T22:20:51.774Z",
   "ok": 1,
   "status": "ok",
   "ms": 6303,
   "f_status": "ok"
  },
  {
   "at": "2026-10-16T15:10:54.412Z",
   "ok": 1,
   "status": "ok",
   "ms": 7969,
   "f_status": "ok"
  },
  {
   "at": "2026-10-16T08:11:04.138Z",
   "ok": 1,
   "status": "ok",
   "ms": 9471,
   "f_status": "ok"
  },
  {
   "at": "2026-10-16T01:16:00.464Z",
   "ok": 1,
   "status": "ok",
   "ms": 9302,
   "f_status": "ok"
  },
  {
   "at": "2026-10-15T18:21:06.528Z",
   "ok": 1,
   "status": "ok",
   "ms": 10287,
   "f_status": "ok"
  },
  {
   "at": "2026-10-15T11:36:04.760Z",
   "ok": 1,
   "status": "ok",
   "ms": 7113,
   "f_status": "ok"
  },
  {
   "at": "2026-10-15T05:00:44.940Z",
   "ok": 1,
   "status": "ok",
   "ms": 4272,
   "f_status": "ok"
  },
  {
   "at": "2026-10-14T22:30:22.669Z",
   "ok": 1,
   "status": "ok",
   "ms": 6860,
   "f_status": "ok"
  }
 ],
 "trust": {
  "access": "no sign-in needed",
  "tools": 3,
  "declaredReadOnly": 3,
  "declaredCanWrite": 0,
  "declaredDestructive": 0,
  "toolDefinitionsFingerprint": "31e5ecc0c623351c883872b597bf5bb1",
  "toolDefinitionsLastChangedAt": null,
  "toolDefinitionChangesSinceFirstSeen": 0,
  "firstSeenAt": "2026-10-17T22:20:46.929Z",
  "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."
 }
}