dev.invowerk/xrechnung-e-invoice-validator

up checked 2026-11-11T01:38:07.304Z

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Publisher-provided title

invowerk

Publisher-provided description

E-invoice checker for ZUGFeRD, Factur-X, XRechnung and Peppol BIS. Free web tool, API and MCP.

Summary by lookupd

Validates, converts, generates, parses and renders e-invoices such as XRechnung, ZUGFeRD and Peppol BIS documents.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http xrechnung-e-invoice-validator https://api.invowerk.dev/mcp/

Codex, remote (streamable-http)

codex mcp add xrechnung-e-invoice-validator --url https://api.invowerk.dev/mcp/

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "xrechnung-e-invoice-validator": {
      "url": "https://api.invowerk.dev/mcp/"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (6 tools)

Publisher-provided text

• validate_invoice Check an e-invoice against EN 16931 and German rules. Input: `invoice_base64` is the base64 of an XML invoice (UBL or CII) or a ZUGFeRD / Factur-X PDF, at most
• render_invoice Render an XML e-invoice (UBL or CII, e.g. XRechnung) as a readable HTML page. invowerk uses the KoSIT XRechnung visualization. Use it to show a person what an
• explain_errors Explain rule codes in plain language. Works without an API key. Covers the codes of `validate_invoice` findings and hints: EN 16931, XRechnung, ZUGFeRD and inv
• generate_invoice Create a valid EN 16931 e-invoice (UBL or CII XML) from JSON. Input: `invoice` is a JSON object keyed on EN 16931 Business Terms, the same schema as `POST /v1/
• parse_invoice Read an existing e-invoice into JSON keyed on EN 16931 Business Terms. The JSON is the input format of `generate_invoice`, so you can edit it and create the in
• convert_invoice Convert an e-invoice to UBL or CII. The result is checked before it is returned. Input: `invoice_base64` is the base64 of an XML invoice or a ZUGFeRD / Factur-

Details

• Version: 1.0.1
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 782 ms
• First indexed: 2026-11-01T09:01:08.707Z
• Last seen in registry: 2026-11-01T09:01:08.823Z
• Repository: https://github.com/invowerk-dev/invowerk
• Website: https://invowerk.dev/en/

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