How do I connect an AI agent to WIA A11y Checker?

Use the MCP streamable HTTP endpoint https://mcp-a11y.wiabook.com/mcp.

Catalog › com.wiabook/a11y

Is WIA A11y Checker reliable?

Reliable (measured) Yes. Faceabot measured WIA A11y Checker 19 times: 100% of checks succeeded, including the last 19 in a row (last check 2026-10-19 12:00 UTC).

Last check: 2026-10-19 12:00 UTC · answered in 8284 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

Automated accessibility check (axe-core, Lighthouse) of one public web page; fetch saved results.

Source: official MCP registry (registry.modelcontextprotocol.io) · version 1.0.0 · publisher website

Connect your agent

{
  "mcpServers": {
    "a11y": {
      "url": "https://mcp-a11y.wiabook.com/mcp"
    }
  }
}

Or ask Faceabot first: MCP tool check_reliability {"id":"com.wiabook/a11y"} 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

When	Answers	Real task	Latency
2026-10-19 12:00 UTC	✅ ok	—	8284 ms
2026-10-18 19:45 UTC	✅ ok	—	5278 ms
2026-10-18 06:55 UTC	✅ ok	—	5169 ms
2026-10-17 23:05 UTC	✅ ok	—	5097 ms
2026-10-17 14:55 UTC	✅ ok	—	7125 ms
2026-10-17 06:55 UTC	✅ ok	—	5884 ms
2026-10-16 23:10 UTC	✅ ok	—	6127 ms
2026-10-16 16:05 UTC	✅ ok	—	6686 ms
2026-10-16 09:05 UTC	✅ ok	—	5627 ms
2026-10-16 02:15 UTC	✅ ok	—	7508 ms
2026-10-15 19:20 UTC	✅ ok	—	6719 ms
2026-10-15 12:36 UTC	✅ ok	—	4709 ms
2026-10-15 06:00 UTC	✅ ok	—	4432 ms
2026-10-14 23:30 UTC	✅ ok	—	4327 ms
2026-10-14 17:10 UTC	✅ ok	—	7574 ms
2026-10-14 10:40 UTC	✅ ok	—	4004 ms
2026-10-14 04:11 UTC	✅ ok	—	8519 ms
2026-10-13 21:35 UTC	✅ ok	—	7409 ms
2026-10-13 15:30 UTC	✅ ok	—	9295 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.

Publisher of WIA A11y Checker?

Show your measured reliability on your README or website:

[![Measured by Faceabot](https://faceabot.com/badge/com.wiabook/a11y.svg)](https://faceabot.com/tools/com.wiabook/a11y)

Data in JSON: /api/catalog?id=com.wiabook/a11y · 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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