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Claude Code E-invoice validator & repair check (XRechnung, Peppol BIS 3, EN 16931) explain_rule

How to: Claude Code E-invoice validator & repair check (XRechnung, Peppol BIS 3, EN 16931) explain_rule

client:Claude Code transport:streamable-http tool:explain_rule

Add E-invoice validator & repair check (XRechnung, Peppol BIS 3, EN 16931) to Claude Code

  1. 01

    Run this in your project directory.

claude mcp add --transport http einvoice-validator https://einvoice-validator-k2qw.onrender.com/mcp
  1. 02

    Restart your session so the server is picked up.

  2. 03

    Ask for something explain_rule does. Claude Code lists the server's tools on connect and calls explain_rule itself — you do not invoke it by name.

  3. 04

    If nothing happens, check the server is running and that E-invoice validator & repair check (XRechnung, Peppol BIS 3, EN 16931)'s identifier in your config matches the one above exactly.

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

Same tool, other clients

This list was read from the server itself, by connecting to it and calling tools/list on 5 November 2026. It is what the server actually exposes, not what its listing claims.

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.