{
 "id": "com.craftquantities/engine",
 "name": "Craft Quantities: construction material calculators",
 "description": "Construction quantities from cited calculators, takeoffs, a planner and house drawings. No prices.",
 "connect": {
  "transport": "streamable-http",
  "url": "https://api.craftquantities.com/mcp"
 },
 "website": "https://craftquantities.com/api/",
 "version": "1.4.0",
 "source": "official MCP registry (registry.modelcontextprotocol.io)",
 "reliability": {
  "verdict": "flaky",
  "attempts": 23,
  "successes": 22,
  "successRate": 0.957,
  "consecutiveSuccesses": 0,
  "lastStatus": "bad_tools_list",
  "lastCheckedAt": "2026-10-18T12:15:43.750Z",
  "lastLatencyMs": 8016,
  "toolsAdvertised": 28,
  "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": "estimate_house",
   "attempts": 21,
   "successes": 21,
   "successRate": 1,
   "consecutiveSuccesses": 21,
   "lastStatus": "ok",
   "lastMs": 3460,
   "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.craftquantities%2Fengine",
 "page": "https://faceabot.com/tools/com.craftquantities/engine",
 "badge": {
  "image": "https://faceabot.com/badge/com.craftquantities/engine.svg",
  "markdown": "[![Measured by Faceabot](https://faceabot.com/badge/com.craftquantities/engine.svg)](https://faceabot.com/tools/com.craftquantities/engine)",
  "note": "Live reliability badge the publisher of this server can show on its README or website."
 },
 "recentChecks": [
  {
   "at": "2026-10-18T12:15:43.750Z",
   "ok": 0,
   "status": "bad_tools_list",
   "ms": 8016,
   "f_status": null
  },
  {
   "at": "2026-10-18T03:00:46.400Z",
   "ok": 1,
   "status": "ok",
   "ms": 6223,
   "f_status": "ok"
  },
  {
   "at": "2026-10-17T19:00:47.618Z",
   "ok": 1,
   "status": "ok",
   "ms": 5399,
   "f_status": "ok"
  },
  {
   "at": "2026-10-17T10:40:42.221Z",
   "ok": 1,
   "status": "ok",
   "ms": 6015,
   "f_status": "ok"
  },
  {
   "at": "2026-10-17T02:55:49.066Z",
   "ok": 1,
   "status": "ok",
   "ms": 5538,
   "f_status": "ok"
  },
  {
   "at": "2026-10-16T19:15:54.542Z",
   "ok": 1,
   "status": "ok",
   "ms": 5697,
   "f_status": "ok"
  },
  {
   "at": "2026-10-16T12:10:50.228Z",
   "ok": 1,
   "status": "ok",
   "ms": 6301,
   "f_status": "ok"
  },
  {
   "at": "2026-10-16T05:16:01.394Z",
   "ok": 1,
   "status": "ok",
   "ms": 5119,
   "f_status": "ok"
  },
  {
   "at": "2026-10-15T22:20:53.208Z",
   "ok": 1,
   "status": "ok",
   "ms": 6539,
   "f_status": "ok"
  },
  {
   "at": "2026-10-15T15:31:04.870Z",
   "ok": 1,
   "status": "ok",
   "ms": 4727,
   "f_status": "ok"
  },
  {
   "at": "2026-10-15T08:46:01.046Z",
   "ok": 1,
   "status": "ok",
   "ms": 4380,
   "f_status": "ok"
  },
  {
   "at": "2026-10-15T02:20:31.503Z",
   "ok": 1,
   "status": "ok",
   "ms": 5348,
   "f_status": "ok"
  },
  {
   "at": "2026-10-14T19:55:18.505Z",
   "ok": 1,
   "status": "ok",
   "ms": 6257,
   "f_status": "ok"
  },
  {
   "at": "2026-10-14T13:25:35.741Z",
   "ok": 1,
   "status": "ok",
   "ms": 4599,
   "f_status": "ok"
  },
  {
   "at": "2026-10-14T07:01:27.402Z",
   "ok": 1,
   "status": "ok",
   "ms": 7570,
   "f_status": "ok"
  },
  {
   "at": "2026-10-14T00:11:15.867Z",
   "ok": 1,
   "status": "ok",
   "ms": 8404,
   "f_status": "ok"
  },
  {
   "at": "2026-10-13T18:05:52.749Z",
   "ok": 1,
   "status": "ok",
   "ms": 6371,
   "f_status": "ok"
  },
  {
   "at": "2026-10-13T11:55:56.011Z",
   "ok": 1,
   "status": "ok",
   "ms": 8383,
   "f_status": "ok"
  },
  {
   "at": "2026-10-13T05:51:03.832Z",
   "ok": 1,
   "status": "ok",
   "ms": 7813,
   "f_status": "ok"
  },
  {
   "at": "2026-10-12T23:45:58.432Z",
   "ok": 1,
   "status": "ok",
   "ms": 7468,
   "f_status": "ok"
  }
 ],
 "trust": {
  "access": "no sign-in needed",
  "tools": 28,
  "declaredReadOnly": 28,
  "declaredCanWrite": 0,
  "declaredDestructive": 0,
  "toolDefinitionsFingerprint": "34fb4da21f9d9cf756986a628a348f9e",
  "toolDefinitionsLastChangedAt": null,
  "toolDefinitionChangesSinceFirstSeen": 0,
  "firstSeenAt": "2026-10-17T19:00:47.804Z",
  "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."
 }
}