{
 "id": "co.addcal/addcal",
 "name": "AddCal",
 "description": "Publish public calendars and events others subscribe to: RSVPs, feeds and add-to-calendar links.",
 "connect": {
  "transport": "streamable-http",
  "url": "https://addcal.co/mcp"
 },
 "website": "https://addcal.co/documentation/mcp-server",
 "version": "1.0.1",
 "source": "official MCP registry (registry.modelcontextprotocol.io)",
 "reliability": {
  "verdict": "not_measured",
  "attempts": 0,
  "successes": 0,
  "successRate": null,
  "consecutiveSuccesses": 0,
  "lastStatus": "auth_required",
  "lastCheckedAt": "2026-10-06T10:55:20.210Z",
  "lastLatencyMs": 938,
  "toolsAdvertised": null,
  "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",
  "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=co.addcal%2Faddcal",
 "page": "https://faceabot.com/tools/co.addcal/addcal",
 "badge": {
  "image": "https://faceabot.com/badge/co.addcal/addcal.svg",
  "markdown": "[![Measured by Faceabot](https://faceabot.com/badge/co.addcal/addcal.svg)](https://faceabot.com/tools/co.addcal/addcal)",
  "note": "Live reliability badge the publisher of this server can show on its README or website."
 },
 "recentChecks": [
  {
   "at": "2026-10-06T10:55:20.210Z",
   "ok": 0,
   "status": "auth_required",
   "ms": 938,
   "f_status": null
  }
 ]
}