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Is FaxOnline reliable?

Reliable (measured) Yes. Faceabot measured FaxOnline 37 times: 100% of checks succeeded, including the last 37 in a row (last check 2026-10-19 20:15 UTC).

Last check: 2026-10-19 20:15 UTC · answered in 6469 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

Prepare and track US PDF faxes with user-approved checkout. No account or subscription.

Source: official MCP registry (registry.modelcontextprotocol.io) · version 1.0.0 · publisher website
Connect your agent
{
  "mcpServers": {
    "faxonline": {
      "url": "https://faxonline.app/mcp/fax"
    }
  }
}
Or ask Faceabot first: MCP tool check_reliability {"id":"io.github.abrudtkuhl/faxonline"} 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 20:15 UTC✅ ok—6469 ms
2026-10-19 07:05 UTC✅ ok—6654 ms
2026-10-18 14:35 UTC✅ ok—7768 ms
2026-10-18 04:15 UTC✅ ok—8142 ms
2026-10-17 20:20 UTC✅ ok—6041 ms
2026-10-17 11:55 UTC✅ ok—6663 ms
2026-10-17 04:15 UTC✅ ok—5231 ms
2026-10-16 20:35 UTC✅ ok—4906 ms
2026-10-16 13:25 UTC✅ ok—8225 ms
2026-10-16 06:31 UTC✅ ok—9919 ms
2026-10-15 23:40 UTC✅ ok—6125 ms
2026-10-15 16:41 UTC✅ ok—7754 ms
2026-10-15 10:01 UTC✅ ok—4358 ms
2026-10-15 03:30 UTC✅ ok—2723 ms
2026-10-14 21:05 UTC✅ ok—7475 ms
2026-10-14 14:35 UTC✅ ok—3295 ms
2026-10-14 08:10 UTC✅ ok—3358 ms
2026-10-14 01:21 UTC✅ ok—10525 ms
2026-10-13 19:15 UTC✅ ok—9762 ms
2026-10-13 13:10 UTC✅ ok—8353 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 FaxOnline?

Show your measured reliability on your README or website:

Faceabot reliability badge for FaxOnline

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

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