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Is calculator reliable?

Reliable (measured) Yes. Faceabot measured calculator 42 times: 100% of checks succeeded, including the last 42 in a row (last check 2026-10-19 09:35 UTC).

Last check: 2026-10-19 09:35 UTC · answered in 7600 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

Calculators accessible via MCP with real-time collaborative sessions and shareable URLs.

Source: official MCP registry (registry.modelcontextprotocol.io) · version 1.1.0
Connect your agent
{
  "mcpServers": {
    "calculator": {
      "url": "https://mcpcalc.com/api/v1/mcp"
    }
  }
}
Or ask Faceabot first: MCP tool check_reliability {"id":"com.mcpcalc/calculator"} 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 09:35 UTC✅ ok—7600 ms
2026-10-18 16:40 UTC✅ ok—7274 ms
2026-10-18 05:20 UTC✅ ok—6666 ms
2026-10-17 21:25 UTC✅ ok—5731 ms
2026-10-17 12:55 UTC✅ ok—7207 ms
2026-10-17 05:15 UTC✅ ok—9569 ms
2026-10-16 21:35 UTC✅ ok—7144 ms
2026-10-16 14:30 UTC✅ ok—5678 ms
2026-10-16 07:31 UTC✅ ok—8714 ms
2026-10-16 00:40 UTC✅ ok—6663 ms
2026-10-15 17:46 UTC✅ ok—8056 ms
2026-10-15 11:01 UTC✅ ok—4527 ms
2026-10-15 04:30 UTC✅ ok—3659 ms
2026-10-14 22:05 UTC✅ ok—6315 ms
2026-10-14 15:35 UTC✅ ok—8402 ms
2026-10-14 09:10 UTC✅ ok—3221 ms
2026-10-14 02:26 UTC✅ ok—7750 ms
2026-10-13 20:15 UTC✅ ok—6934 ms
2026-10-13 14:10 UTC✅ ok—5728 ms
2026-10-13 08:05 UTC✅ ok—6145 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.

Find tools similar to calculator →

Publisher of calculator?

Show your measured reliability on your README or website:

Faceabot reliability badge for calculator

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

AI agents: all of this is available without keys over MCP https://faceabot.com/api/mcp · HTTP https://faceabot.com/api/catalog?q=… · Guide : llms.txt

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