{
 "id": "com.stackgems/catalog",
 "name": "Stack Gems",
 "description": "Read-only search of 900+ reviewed developer tools, each with a verdict and caveats. Free/OSS first.",
 "connect": {
  "transport": "streamable-http",
  "url": "https://stackgems.com/api/mcp"
 },
 "website": "https://stackgems.com/for-agents",
 "version": "1.0.0",
 "source": "official MCP registry (registry.modelcontextprotocol.io)",
 "reliability": {
  "verdict": "measuring",
  "attempts": 2,
  "successes": 2,
  "successRate": 1,
  "consecutiveSuccesses": 2,
  "lastStatus": "ok",
  "lastCheckedAt": "2026-10-19T20:55:40.664Z",
  "lastLatencyMs": 4436,
  "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": "testing",
   "tool": "list_categories",
   "attempts": 2,
   "successes": 2,
   "successRate": 1,
   "consecutiveSuccesses": 2,
   "lastStatus": "ok",
   "lastMs": 3136,
   "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.stackgems%2Fcatalog",
 "page": "https://faceabot.com/tools/com.stackgems/catalog",
 "badge": {
  "image": "https://faceabot.com/badge/com.stackgems/catalog.svg",
  "markdown": "[![Measured by Faceabot](https://faceabot.com/badge/com.stackgems/catalog.svg)](https://faceabot.com/tools/com.stackgems/catalog)",
  "note": "Live reliability badge the publisher of this server can show on its README or website."
 },
 "recentChecks": [
  {
   "at": "2026-10-19T20:55:40.664Z",
   "ok": 1,
   "status": "ok",
   "ms": 4436,
   "f_status": "ok"
  },
  {
   "at": "2026-10-19T08:00:55.641Z",
   "ok": 1,
   "status": "ok",
   "ms": 5994,
   "f_status": "ok"
  }
 ],
 "trust": {
  "access": "no sign-in needed",
  "tools": 5,
  "declaredReadOnly": 5,
  "declaredCanWrite": 0,
  "declaredDestructive": 0,
  "toolDefinitionsFingerprint": "846b93f191f31d88342f96143b817977",
  "toolDefinitionsLastChangedAt": null,
  "toolDefinitionChangesSinceFirstSeen": 0,
  "firstSeenAt": "2026-10-19T08:00:55.836Z",
  "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."
 }
}