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Is AddEvent MCP by usefulapi reliable?

Reliable (measured) Yes. Faceabot measured AddEvent MCP by usefulapi 26 times: 100% of checks succeeded, including the last 26 in a row (last check 2026-10-19 17:55 UTC).

Last check: 2026-10-19 17:55 UTC · answered in 6079 ms · remote (no install)

En français : Fiable (mesuré). Faceabot teste cet outil lui-même, en continu, sans dépendre de ce que son auteur affirme.

What it does

Read AddEvent calendars, events, RSVPs and subscribers; create and update calendars and events.

Source: official MCP registry (registry.modelcontextprotocol.io) · version 1.0.0 · publisher website
Connect your agent
{
  "mcpServers": {
    "addevent": {
      "url": "https://addevent.usefulapi.io/mcp"
    }
  }
}
Or ask Faceabot first: MCP tool check_reliability {"id":"io.usefulapi/addevent"} on https://faceabot.com/api/mcp.
Does it actually do the job?

Not tested with a real task yet. Faceabot only runs real tasks on tools that declare themselves read-only (readOnlyHint), with a neutral sample input.

Faceabot measurements
WhenAnswersReal taskLatency
2026-10-19 17:55 UTC✅ ok❌ auth_required6079 ms
2026-10-19 03:35 UTC✅ ok❌ auth_required5012 ms
2026-10-18 11:45 UTC✅ ok❌ auth_required4968 ms
2026-10-18 02:45 UTC✅ ok❌ auth_required4675 ms
2026-10-17 18:45 UTC✅ ok❌ auth_required5126 ms
2026-10-17 10:25 UTC✅ ok❌ auth_required5979 ms
2026-10-17 02:40 UTC✅ ok❌ auth_required6698 ms
2026-10-16 19:05 UTC✅ ok❌ auth_required8630 ms
2026-10-16 12:02 UTC✅ ok❌ auth_required6958 ms
2026-10-16 05:05 UTC✅ ok❌ auth_required4954 ms
2026-10-15 22:10 UTC✅ ok❌ auth_required6063 ms
2026-10-15 15:21 UTC✅ ok❌ auth_required4087 ms
2026-10-15 08:36 UTC✅ ok❌ auth_required3711 ms
2026-10-15 02:05 UTC✅ ok❌ auth_required2697 ms
2026-10-14 19:40 UTC✅ ok❌ auth_required5223 ms
2026-10-14 13:10 UTC✅ ok❌ auth_required4086 ms
2026-10-14 06:46 UTC✅ ok❌ auth_required5852 ms
2026-10-13 23:56 UTC✅ ok❌ auth_required7552 ms
2026-10-13 17:50 UTC✅ ok❌ auth_required6241 ms
2026-10-13 11:40 UTC✅ ok❌ auth_required8005 ms
Method: MCP initialize then tools/list from Faceabot (FaceabotProbe/1.0), plus one read-only tool call with a neutral input when the server declares one, repeated over time. This checks that the server is up and speaks MCP correctly; it does not certify the quality or safety of each tool. How measurement works.

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Publisher of AddEvent MCP by usefulapi?

Show your measured reliability on your README or website:

Faceabot reliability badge for AddEvent MCP by usefulapi

[![Measured by Faceabot](https://faceabot.com/badge/io.usefulapi/addevent.svg)](https://faceabot.com/tools/io.usefulapi/addevent)
Data in JSON: /api/catalog?id=io.usefulapi/addevent · Stop probes: POST /api/reliability/opt-out

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