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

by fakturai

answering

Fakturai — German E-Invoice (ZUGFeRD / Factur-X / E-Rechnung) is answering right now. Last checked 6 min ago. It exposes 3 tools.

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

Uptime history 64 hours of history

64 hours agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

277 ms

Response time

average over 24h

open, no key

Access

streamable-http

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 6 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	319 ms	6 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 92 of 92 checks got a reply (100.0%), average response time 277 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 277 ms on average, which is faster than 52% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.