E-Invoice Checker

Connect it to your AI

Claude Code

claude mcp add --transport http einvoice https://einvoicechecker.com/v1/mcp

Claude, ChatGPT, Cursor and other apps

Add it as a custom connector with this URL (Streamable HTTP):

https://einvoicechecker.com/v1/mcp

This server expects extra headers, usually an API key from its maker.

Cursor, VS Code and other apps (mcp.json)

{
  "mcpServers": {
    "einvoice": {
      "url": "https://einvoicechecker.com/v1/mcp"
    }
  }
}

Tools it offers

8 tools, as the server itself reported during our check on Oct 31, 2026.

• list_supported_formatsWhich formats, profiles and rule sets this service supports, and what each tool costs.
• detect_invoiceIdentify the format, syntax, profile/customization and country standard of an e-invoice file. Cheap first step before validating.
• parse_invoiceExtract the invoice as normalised JSON: number, dates, seller, buyer, lines, VAT breakdown, totals, payment details. Works for every supported format.
• fix_invoiceFix validation errors of an EN 16931 invoice (XRechnung, Peppol BIS, ZUGFeRD/Factur-X XML, UBL, CII) deterministically: empty elements, decimals, date and code formats, specification ids; with totals=true also recalculat
• validate_invoiceRun the official rule set for the detected format (KoSIT for XRechnung/ZUGFeRD/Factur-X, OpenPeppol for Peppol BIS, FA(3) schema for KSeF, Porezna uprava HR-CIUS schematron for Croatian eRačun, Facturae XSD + calculation
• render_invoice_htmlHuman-readable invoice document (HTML, A4 print layout) from the XML, in the requested language.
• render_invoice_pdfHuman-readable PDF of the invoice (counts as 2 requests). Returned as a base64 resource.
• my_usagePlan, monthly quota, usage this month and subscription state of the API key used for this connection. Free.

Questions