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Is SofortFax (KI-Fax-Credits) reliable?

Flaky Partly. Faceabot measured SofortFax (KI-Fax-Credits) 7 times and only 86% of checks succeeded. Plan a fallback. It answers, but its real task has not worked yet (0/6 real results): see "Does it actually do the job?" below.

Last check: 2026-10-10 23:31 UTC · answered in 8000 ms · remote (no install)

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

What it does

Send faxes from AI chat with prepaid credits (1 credit = 1 fax, up to 40 pages). DE/AT + 40 more.

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

Fails real tasks — Faceabot asked get_account_balance to do a small read-only task 6 time(s): 0 returned a real result. Last result: tool_error (its schema declares no required input, so Faceabot sent {}; the tool answered with an error, so it probably needs inputs its schema does not declare) in 3511 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
2026-10-10 23:31 UTC❌ timeout8000 ms
2026-10-10 17:25 UTC✅ ok❌ tool_error9230 ms
2026-10-10 11:15 UTC✅ ok❌ tool_error9771 ms
2026-10-10 05:11 UTC✅ ok❌ tool_error8432 ms
2026-10-09 22:51 UTC✅ ok❌ tool_error10474 ms
2026-10-09 16:10 UTC✅ ok❌ tool_error10543 ms
2026-10-09 09:01 UTC✅ ok❌ tool_error9384 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.

More from the same publisher

SofortFax – Faxen mit KI Flaky · 86% over 7 checks Does the job (tested) · 6/6

Send real faxes from AI chat (DE/AT + 40 countries). PDF, JPG, photo. Pay per fax via Stripe.

MCP endpoint : https://sofortfax.de/api/mcp.php · website · measurements and details
SofortFax – Faxen mit KI (Login) Private (key required)

Fax from ChatGPT/Claude with OAuth sign-in: pay per fax or KI credits. DE/AT + 40 countries.

MCP endpoint : https://sofortfax.de/api/mcp-oauth.php · website · measurements and details

Find tools similar to SofortFax (KI-Fax-Credits) →

Publisher of SofortFax (KI-Fax-Credits)?

Show your measured reliability on your README or website:

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Data in JSON: /api/catalog?id=de.sofortfax/fax-credits · Stop probes: POST /api/reliability/opt-out

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