How do I connect an AI agent to Vyfakturuj MCP by usefulapi?

Use the MCP streamable HTTP endpoint https://vyfakturuj.usefulapi.io/mcp.

Catalog › io.usefulapi/vyfakturuj

Is Vyfakturuj MCP by usefulapi reliable?

Reliable (measured) Yes. Faceabot measured Vyfakturuj MCP by usefulapi 26 times: 100% of checks succeeded, including the last 26 in a row (last check 2026-10-19 16:20 UTC).

Last check: 2026-10-19 16:20 UTC · answered in 8000 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

Read and create Vyfakturuj invoices and contacts: search, number series, payment methods, tags.

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

Connect your agent

{
  "mcpServers": {
    "vyfakturuj": {
      "url": "https://vyfakturuj.usefulapi.io/mcp"
    }
  }
}

Or ask Faceabot first: MCP tool check_reliability {"id":"io.usefulapi/vyfakturuj"} 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 16:20 UTC	✅ ok	❌ auth_required	8000 ms
2026-10-19 01:20 UTC	✅ ok	❌ auth_required	5123 ms
2026-10-18 09:55 UTC	✅ ok	❌ auth_required	7561 ms
2026-10-18 01:50 UTC	✅ ok	❌ auth_required	4282 ms
2026-10-17 17:40 UTC	✅ ok	❌ auth_required	7548 ms
2026-10-17 09:35 UTC	✅ ok	❌ auth_required	6134 ms
2026-10-17 01:40 UTC	✅ ok	❌ auth_required	5502 ms
2026-10-16 18:25 UTC	✅ ok	❌ auth_required	5903 ms
2026-10-16 11:21 UTC	✅ ok	❌ auth_required	6993 ms
2026-10-16 04:25 UTC	✅ ok	❌ auth_required	7309 ms
2026-10-15 21:35 UTC	✅ ok	❌ auth_required	4709 ms
2026-10-15 14:41 UTC	✅ ok	❌ auth_required	5116 ms
2026-10-15 08:05 UTC	✅ ok	❌ auth_required	3584 ms
2026-10-15 01:30 UTC	✅ ok	❌ auth_required	4332 ms
2026-10-14 19:05 UTC	✅ ok	❌ auth_required	7853 ms
2026-10-14 12:35 UTC	✅ ok	❌ auth_required	4052 ms
2026-10-14 06:11 UTC	✅ ok	❌ auth_required	7474 ms
2026-10-13 23:21 UTC	✅ ok	❌ auth_required	8214 ms
2026-10-13 17:15 UTC	✅ ok	❌ auth_required	6660 ms
2026-10-13 11:05 UTC	✅ ok	❌ auth_required	5930 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 Vyfakturuj MCP by usefulapi?

Show your measured reliability on your README or website:

[![Measured by Faceabot](https://faceabot.com/badge/io.usefulapi/vyfakturuj.svg)](https://faceabot.com/tools/io.usefulapi/vyfakturuj)

Data in JSON: /api/catalog?id=io.usefulapi/vyfakturuj · 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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