eleata e-invoice MCP server

Validate EU electronic invoices and explain validation error codes directly from your AI coding agent (Claude, Cursor, Copilot, …). It wraps the hosted eleata validation API plus a bundled offline error-code reference.

Never ship a broken invoice. When you ask your agent "is this FatturaPA / XRechnung / Peppol file valid?", it runs the official Schematron rules and gets back the rule id and the fix — before a rejection (an SdI scarto, a Chorus Pro refusal, a KSeF error) ever happens.

Tools

Tool	What it does	API key
validate_einvoice	Validate one invoice (Peppol BIS 3.0, EN 16931 UBL/CII, XRechnung 3.0.x, Factur-X/ZUGFeRD, UBL, CII). Returns valid/invalid + each rule id, explanation and fix.	required
list_formats	List the formats eleata validates today + roadmap.	none
explain_error_code	Explain one error code (e.g. 00400, BR-DE-21) in plain English, with the fix. Works offline.	none

Setup

1. Get a free API key (200 validations/month, no card) at https://eleata.io/signup/.
2. Add the server to your agent's MCP config.

Claude Desktop / Claude Code (claude_desktop_config.json or .mcp.json)

{
  "mcpServers": {
    "eleata-einvoice": {
      "command": "npx",
      "args": ["-y", "eleata-einvoice-mcp"],
      "env": { "EINVOICE_API_KEY": "your_free_key_here" }
    }
  }
}

Cursor (~/.cursor/mcp.json)

Same block as above.

Example prompts

• "Validate this XRechnung file and tell me what to fix" (paste the XML)
• "What does FatturaPA error 00400 mean and how do I fix it?"
• "Which e-invoice formats can you validate today?"

Privacy

validate_einvoice sends the invoice you pass to the hosted eleata API for validation. list_formats and explain_error_code are local/offline (the error-code reference is bundled). See https://eleata.io/privacy/.

Links

• Web validator, CLI and GitHub Action: https://eleata.io
• Error-code reference: https://eleata.io/error/
• CLI (npx @eleata/validate-einvoice): same API, for CI/CD

MIT licensed. Schematron engines: Mustang / phive. Schematron rules from CEN, OpenPeppol, KoSIT.