MCP server

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

de.fakturai/erechnung

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

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

Working at last checkVerified publisher: fakturai.deAbout 485 tokens per request once connected3 tools

https://fakturai.de/mcp

At a glance

Type: MCP server
Publisher: fakturai.de (verified by the MCP Registry)
Status: Working at last check
Tools: 3
Token cost: About 485 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

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

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

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

Gemini CLI

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

Cursor

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

VS Code

{"servers":{"erechnung":{"type":"http","url":"https://fakturai.de/mcp"}}}

Antigravity

agy mcp add erechnung https://fakturai.de/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"erechnung","server_url":"https://fakturai.de/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"erechnung","server_url":"https://fakturai.de/mcp"}

compliance_status ~96 tokens
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_einvoice ~212 tokens
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 s
validate_einvoice ~177 tokens
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 validier

NormAPI
Validate, generate and read German e-invoices (XRechnung, ZUGFeRD) against the official KoSIT rules.
E-Invoice Checker
Validate, parse and render EU e-invoices: XRechnung, ZUGFeRD, Factur-X, Peppol BIS 3.0, KSeF.
Einvoicewiz
Generate & validate EN 16931 e-invoices (Factur-X, ZUGFeRD, XRechnung); verification certificates
invowerk
E-invoice checker for ZUGFeRD, Factur-X, XRechnung and Peppol BIS. Free web tool, API and MCP.
finisma – ZUGFeRD e-invoices
Create ZUGFeRD e-invoices from JSON or PDF, verify Factur-X, check VAT IDs and Peppol.
Dropcoin Invoice
German e-invoicing: generate XRechnung 3.0, pre-check and extract (incl. ZUGFeRD PDF). Paid.
Rechnungslotse: deutsche E-Rechnung
XRechnung/ZUGFeRD erstellen, gegen EN 16931 prüfen, Fehler mit Regel-ID erklären. Ohne Konto.
InkVoice — XRechnung & E-Invoicing
XRechnung and ZUGFeRD e-invoicing (EN 16931): create, validate, check Leitweg-IDs, German VAT.

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