{
 "id": "io.usefulapi/addevent",
 "name": "AddEvent MCP by usefulapi",
 "description": "Read AddEvent calendars, events, RSVPs and subscribers; create and update calendars and events.",
 "connect": {
  "transport": "streamable-http",
  "url": "https://addevent.usefulapi.io/mcp"
 },
 "website": "https://usefulapi.io/addevent/",
 "version": "1.0.0",
 "source": "official MCP registry (registry.modelcontextprotocol.io)",
 "reliability": {
  "verdict": "reliable",
  "attempts": 26,
  "successes": 26,
  "successRate": 1,
  "consecutiveSuccesses": 26,
  "lastStatus": "ok",
  "lastCheckedAt": "2026-10-19T17:55:43.069Z",
  "lastLatencyMs": 6079,
  "toolsAdvertised": 18,
  "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": "not_tested",
   "note": "Faceabot has not run a real task on this server yet (it only tests tools that declare themselves read-only)."
  }
 },
 "details": "https://faceabot.com/api/catalog?id=io.usefulapi%2Faddevent",
 "page": "https://faceabot.com/tools/io.usefulapi/addevent",
 "badge": {
  "image": "https://faceabot.com/badge/io.usefulapi/addevent.svg",
  "markdown": "[![Measured by Faceabot](https://faceabot.com/badge/io.usefulapi/addevent.svg)](https://faceabot.com/tools/io.usefulapi/addevent)",
  "note": "Live reliability badge the publisher of this server can show on its README or website."
 },
 "recentChecks": [
  {
   "at": "2026-10-19T17:55:43.069Z",
   "ok": 1,
   "status": "ok",
   "ms": 6079,
   "f_status": "auth_required"
  },
  {
   "at": "2026-10-19T03:35:42.186Z",
   "ok": 1,
   "status": "ok",
   "ms": 5012,
   "f_status": "auth_required"
  },
  {
   "at": "2026-10-18T11:45:40.452Z",
   "ok": 1,
   "status": "ok",
   "ms": 4968,
   "f_status": "auth_required"
  },
  {
   "at": "2026-10-18T02:45:39.915Z",
   "ok": 1,
   "status": "ok",
   "ms": 4675,
   "f_status": "auth_required"
  },
  {
   "at": "2026-10-17T18:45:43.970Z",
   "ok": 1,
   "status": "ok",
   "ms": 5126,
   "f_status": "auth_required"
  },
  {
   "at": "2026-10-17T10:25:42.477Z",
   "ok": 1,
   "status": "ok",
   "ms": 5979,
   "f_status": "auth_required"
  },
  {
   "at": "2026-10-17T02:40:50.503Z",
   "ok": 1,
   "status": "ok",
   "ms": 6698,
   "f_status": "auth_required"
  },
  {
   "at": "2026-10-16T19:05:49.997Z",
   "ok": 1,
   "status": "ok",
   "ms": 8630,
   "f_status": "auth_required"
  },
  {
   "at": "2026-10-16T12:02:17.873Z",
   "ok": 1,
   "status": "ok",
   "ms": 6958,
   "f_status": "auth_required"
  },
  {
   "at": "2026-10-16T05:05:48.900Z",
   "ok": 1,
   "status": "ok",
   "ms": 4954,
   "f_status": "auth_required"
  },
  {
   "at": "2026-10-15T22:10:51.544Z",
   "ok": 1,
   "status": "ok",
   "ms": 6063,
   "f_status": "auth_required"
  },
  {
   "at": "2026-10-15T15:21:02.004Z",
   "ok": 1,
   "status": "ok",
   "ms": 4087,
   "f_status": "auth_required"
  },
  {
   "at": "2026-10-15T08:36:01.167Z",
   "ok": 1,
   "status": "ok",
   "ms": 3711,
   "f_status": "auth_required"
  },
  {
   "at": "2026-10-15T02:05:28.516Z",
   "ok": 1,
   "status": "ok",
   "ms": 2697,
   "f_status": "auth_required"
  },
  {
   "at": "2026-10-14T19:40:16.330Z",
   "ok": 1,
   "status": "ok",
   "ms": 5223,
   "f_status": "auth_required"
  },
  {
   "at": "2026-10-14T13:10:34.647Z",
   "ok": 1,
   "status": "ok",
   "ms": 4086,
   "f_status": "auth_required"
  },
  {
   "at": "2026-10-14T06:46:15.340Z",
   "ok": 1,
   "status": "ok",
   "ms": 5852,
   "f_status": "auth_required"
  },
  {
   "at": "2026-10-13T23:56:13.198Z",
   "ok": 1,
   "status": "ok",
   "ms": 7552,
   "f_status": "auth_required"
  },
  {
   "at": "2026-10-13T17:50:52.164Z",
   "ok": 1,
   "status": "ok",
   "ms": 6241,
   "f_status": "auth_required"
  },
  {
   "at": "2026-10-13T11:40:54.099Z",
   "ok": 1,
   "status": "ok",
   "ms": 8005,
   "f_status": "auth_required"
  }
 ],
 "trust": {
  "access": "no sign-in needed",
  "tools": 18,
  "declaredReadOnly": 12,
  "declaredCanWrite": 6,
  "declaredDestructive": 3,
  "toolDefinitionsFingerprint": "58c94af855aeecc06ac0ca8320161df1",
  "toolDefinitionsLastChangedAt": null,
  "toolDefinitionChangesSinceFirstSeen": 0,
  "firstSeenAt": "2026-10-17T18:45:44.144Z",
  "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."
 }
}