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Is RealWorldAPIs reliable?

Reliable (measured) Yes. Faceabot measured RealWorldAPIs 42 times: 100% of checks succeeded, including the last 42 in a row (last check 2026-10-19 13:25 UTC). It also does the job: its real read-only task worked 42 of 42 times.

Last check: 2026-10-19 13:25 UTC · answered in 5302 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

Evidence-first registry of real-world APIs for AI agents, with verified metadata and comparison.

Source: official MCP registry (registry.modelcontextprotocol.io) · version 3.0.1 · publisher website
Connect your agent
{
  "mcpServers": {
    "realworldapis": {
      "url": "https://mcp.realworldapis.com/mcp"
    }
  }
}
Or ask Faceabot first: MCP tool check_reliability {"id":"com.realworldapis/realworldapis"} on https://faceabot.com/api/mcp.
Does it actually do the job?

Does the job (tested) — Faceabot asked search_apis to do a small read-only task 42 time(s): 42 returned a real result, the last 42 in a row. Last result: ok in 4562 ms.

Sample input: {}. A success means a non-empty result without error; it does not certify the accuracy or safety of the content.
Faceabot measurements
WhenAnswersReal taskLatency
2026-10-19 13:25 UTC✅ ok✅ done5302 ms
2026-10-18 21:30 UTC✅ ok✅ done5379 ms
2026-10-18 07:45 UTC✅ ok✅ done5880 ms
2026-10-17 23:55 UTC✅ ok✅ done4436 ms
2026-10-17 15:45 UTC✅ ok✅ done5083 ms
2026-10-17 07:40 UTC✅ ok✅ done5249 ms
2026-10-16 23:45 UTC✅ ok✅ done5578 ms
2026-10-16 16:35 UTC✅ ok✅ done6372 ms
2026-10-16 09:35 UTC✅ ok✅ done6950 ms
2026-10-16 02:40 UTC✅ ok✅ done7519 ms
2026-10-15 19:45 UTC✅ ok✅ done4697 ms
2026-10-15 12:56 UTC✅ ok✅ done5213 ms
2026-10-15 06:20 UTC✅ ok✅ done3772 ms
2026-10-14 23:50 UTC✅ ok✅ done3404 ms
2026-10-14 17:25 UTC✅ ok✅ done5525 ms
2026-10-14 10:55 UTC✅ ok✅ done2940 ms
2026-10-14 04:21 UTC✅ ok✅ done6672 ms
2026-10-13 21:41 UTC✅ ok✅ done7426 ms
2026-10-13 15:35 UTC✅ ok✅ done6807 ms
2026-10-13 09:25 UTC✅ ok✅ done7716 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 RealWorldAPIs →

Publisher of RealWorldAPIs?

Show your measured reliability on your README or website:

Faceabot reliability badge for RealWorldAPIs

[![Measured by Faceabot](https://faceabot.com/badge/com.realworldapis/realworldapis.svg)](https://faceabot.com/tools/com.realworldapis/realworldapis)
Data in JSON: /api/catalog?id=com.realworldapis/realworldapis · 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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