Fakturai — German E-Invoice (ZUGFeRD / Factur-X / E-Rechnung) MCP Server

by fakturai Your server? Claim it

answering

Fakturai — German E-Invoice (ZUGFeRD / Factur-X / E-Rechnung) is answering right now. Last checked 2 min ago. It exposes 3 tools.

KoSIT-verified German e-invoices: generate & validate ZUGFeRD, Factur-X, XRechnung, EN 16931.

Uptime history 51 days of history · worst day 77%

51 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

294 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check Fakturai — German E-Invoice (ZUGFeRD / Factur-X / E-Rechnung) every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 2 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add erechnung --transport http https://fakturai.de/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "erechnung": {
      "url": "https://fakturai.de/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.erechnung]
url = "https://fakturai.de/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "erechnung": {
      "url": "https://fakturai.de/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "erechnung": {
      "url": "https://fakturai.de/mcp"
    }
  }
}

Available tools 3

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

compliance

compliance_status

Check the e-rechnung engine health: KoSIT + Mustang daemon status and dependency version pins vs. latest releases. Use before bulk invoice generation to confirm the compliance gate is fully operational.

generate

generate_einvoice

Generate a KoSIT-verified ZUGFeRD/Factur-X German e-invoice (EN 16931 / E-Rechnung). Returns pdf_b64 (base64 PDF), invoice_number, and the full validation_report. Every invoice returned has passed the official German government KoSIT acceptance gate — the same gate used by federal agencies for B2G submissions. Keywords: ZUGFeRD, Factur-X, E-Rechnung erstellen, Rechnung PDF, German invoice.

validate

validate_einvoice

Validate an existing ZUGFeRD/Factur-X/E-Rechnung invoice. Accepts a base64-encoded PDF or raw CII XML. Runs the full three-validator check: PDF/A conformance, EN 16931 Schematron, and the official German KoSIT acceptance gate. No authentication required. Keywords: E-Rechnung prüfen, ZUGFeRD validieren, Factur-X check, Rechnung compliance.

Endpoints

URL	Transport	State	Latency	Checked
https://fakturai.de/mcp	streamable-http	answering	308 ms	2 min ago

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Fakturai — German E-Invoice (ZUGFeRD / Factur-X / E-Rechnung) — questions

Answers built from our own checks of this server.

What can Fakturai — German E-Invoice (ZUGFeRD / Factur-X / E-Rechnung) do?

It exposes 3 tools, read directly from the server on our last check. Among them: compliance_status, generate_einvoice, validate_einvoice. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Fakturai — German E-Invoice (ZUGFeRD / Factur-X / E-Rechnung) working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 294 ms. The bar chart above shows every period we have measured.

How do I connect Fakturai — German E-Invoice (ZUGFeRD / Factur-X / E-Rechnung)?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Fakturai — German E-Invoice (ZUGFeRD / Factur-X / E-Rechnung) need an API key?

No. Fakturai — German E-Invoice (ZUGFeRD / Factur-X / E-Rechnung) completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 3 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Fakturai — German E-Invoice (ZUGFeRD / Factur-X / E-Rechnung)?

It answers our handshake in 294 ms on average, which is faster than 54% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.