MCP server

InkVoice — XRechnung & E-Invoicing Official

net.inkvoice/inkvoice

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

XRechnung and ZUGFeRD e-invoicing (EN 16931): create, validate, check Leitweg-IDs, German VAT.

Website

At a glance

Type

MCP server

Publisher

inkvoice.net (verified by the MCP Registry)

Status

Working at last check

Tools

5

Token cost

About 3,475 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

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

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 inkvoice https://api.inkvoice.net/mcp

Claude Desktop

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

Codex (config.toml)

[mcp_servers.inkvoice]
url = "https://api.inkvoice.net/mcp"

Gemini CLI

{"mcpServers":{"inkvoice":{"httpUrl":"https://api.inkvoice.net/mcp"}}}

Cursor

{"mcpServers":{"inkvoice":{"url":"https://api.inkvoice.net/mcp"}}}

VS Code

{"servers":{"inkvoice":{"type":"http","url":"https://api.inkvoice.net/mcp"}}}

Antigravity

agy mcp add inkvoice https://api.inkvoice.net/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":"inkvoice","server_url":"https://api.inkvoice.net/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"inkvoice","server_url":"https://api.inkvoice.net/mcp"}

Tools

• calculate_vat ~376 tokens
  Converts between net, tax and gross for a given VAT rate, in either direction. Give an amount and say whether it is net or gross, and you get all three figures back rounded to the cent. Germany's rates are 19 % (standard) and 7 % (reduced), but any rate from 0 to 100 is accepted, so this also works
• check_leitweg_id ~416 tokens
  Checks a German Leitweg-ID — the routing identifier that goes in BT-10 of an XRechnung to a public authority. An invoice to a German public body with a wrong or missing Leitweg-ID is rejected, so this is worth checking before building a document. It verifies the structure (Grobadressierung of 2 to
• create_xrechnung Moves money · ~1120 tokens
  Builds a German XRechnung 3.x electronic invoice (EN 16931, CII syntax) from invoice details and returns the XML as text. This is the format German public-sector buyers are legally required to receive, and that many private B2B buyers now ask for. The EN 16931 business rules are checked before anyt
• create_zugferd ~1122 tokens
  Builds a ZUGFeRD 2.x / Factur-X hybrid invoice from the same details create_xrechnung takes, and returns it as a PDF file. A hybrid is one invoice stated twice in one file: a PDF/A-3 document a person reads, carrying the same invoice inside it as EN 16931 XML a machine books. This is the format pri
• validate_einvoice ~441 tokens
  Reads an existing electronic invoice and reports what is wrong with it. Accepts XRechnung and ZUGFeRD XML in either EN 16931 syntax — CII (used by XRechnung and ZUGFeRD) and UBL — and reports the syntax and profile it found along with the invoice's key fields, so it also answers "what is this file?"

Browse

• PDF tools
• Email
• Payments
• Invoicing and accounting

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