#en16931

Validate German and European e-invoices (ZUGFeRD, Factur-X, XRechnung) against EN 16931. Returns structured JSON with errors, warnings and concrete fix suggestions. Free API key available at zugferd-validator.de.

InvoiceXML brings e-invoice compliance to your AI agent. Create, validate, convert, render, and extract structured invoices across UBL (Peppol BIS Billing 3.0, used worldwide), CII, Factur-X, ZUGFeRD, and XRechnung, all checked against the EN 16931 standard and official Schematron rules. Ask your assistant to generate a compliant invoice, validate one for errors, or convert between formats, with no e-invoicing expertise required.