{
 "id": "ai.opencancer/opencancer",
 "name": "OpenCancer",
 "description": "Cancer patient expert: NCCN-grounded answers with sources, recruiting trials, and expert review.",
 "connect": {
  "transport": "streamable-http",
  "url": "https://opencancer.ai/api/mcp"
 },
 "website": "https://opencancer.ai/connectors",
 "version": "2.0.0",
 "source": "official MCP registry (registry.modelcontextprotocol.io)",
 "reliability": {
  "verdict": "reliable",
  "attempts": 14,
  "successes": 14,
  "successRate": 1,
  "consecutiveSuccesses": 14,
  "lastStatus": "ok",
  "lastCheckedAt": "2026-10-19T13:40:45.657Z",
  "lastLatencyMs": 7027,
  "toolsAdvertised": 5,
  "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": "open_case",
   "attempts": 14,
   "successes": 14,
   "successRate": 1,
   "consecutiveSuccesses": 14,
   "lastStatus": "ok",
   "lastMs": 4798,
   "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=ai.opencancer%2Fopencancer",
 "page": "https://faceabot.com/tools/ai.opencancer/opencancer",
 "badge": {
  "image": "https://faceabot.com/badge/ai.opencancer/opencancer.svg",
  "markdown": "[![Measured by Faceabot](https://faceabot.com/badge/ai.opencancer/opencancer.svg)](https://faceabot.com/tools/ai.opencancer/opencancer)",
  "note": "Live reliability badge the publisher of this server can show on its README or website."
 },
 "recentChecks": [
  {
   "at": "2026-10-19T13:40:45.657Z",
   "ok": 1,
   "status": "ok",
   "ms": 7027,
   "f_status": "ok"
  },
  {
   "at": "2026-10-18T21:50:43.407Z",
   "ok": 1,
   "status": "ok",
   "ms": 6806,
   "f_status": "ok"
  },
  {
   "at": "2026-10-18T07:55:44.940Z",
   "ok": 1,
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   "f_status": "ok"
  },
  {
   "at": "2026-10-18T00:10:43.855Z",
   "ok": 1,
   "status": "ok",
   "ms": 6296,
   "f_status": "ok"
  },
  {
   "at": "2026-10-17T16:00:48.453Z",
   "ok": 1,
   "status": "ok",
   "ms": 6721,
   "f_status": "ok"
  },
  {
   "at": "2026-10-17T07:55:46.050Z",
   "ok": 1,
   "status": "ok",
   "ms": 5243,
   "f_status": "ok"
  },
  {
   "at": "2026-10-17T00:00:55.176Z",
   "ok": 1,
   "status": "ok",
   "ms": 7044,
   "f_status": "ok"
  },
  {
   "at": "2026-10-16T16:50:55.182Z",
   "ok": 1,
   "status": "ok",
   "ms": 7764,
   "f_status": "ok"
  },
  {
   "at": "2026-10-16T09:51:00.212Z",
   "ok": 1,
   "status": "ok",
   "ms": 6203,
   "f_status": "ok"
  },
  {
   "at": "2026-10-16T02:55:54.407Z",
   "ok": 1,
   "status": "ok",
   "ms": 5755,
   "f_status": "ok"
  },
  {
   "at": "2026-10-15T19:55:53.509Z",
   "ok": 1,
   "status": "ok",
   "ms": 7687,
   "f_status": "ok"
  },
  {
   "at": "2026-10-15T13:11:01.627Z",
   "ok": 1,
   "status": "ok",
   "ms": 4796,
   "f_status": "ok"
  },
  {
   "at": "2026-10-15T06:35:30.082Z",
   "ok": 1,
   "status": "ok",
   "ms": 3580,
   "f_status": "ok"
  },
  {
   "at": "2026-10-15T00:00:32.374Z",
   "ok": 1,
   "status": "ok",
   "ms": 4999,
   "f_status": "ok"
  }
 ],
 "trust": {
  "access": "no sign-in needed",
  "tools": 5,
  "declaredReadOnly": 4,
  "declaredCanWrite": 1,
  "declaredDestructive": 0,
  "toolDefinitionsFingerprint": "bd14bb876ff59262be8580f074aa6cd6",
  "toolDefinitionsLastChangedAt": null,
  "toolDefinitionChangesSinceFirstSeen": 0,
  "firstSeenAt": "2026-10-18T00:10:44.027Z",
  "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."
 }
}