Code examples for creating and validating XRechnung 3.0 e-invoices (EN 16931 XML, KoSIT-compliant, CII and UBL syntax) via the InvoiceXML REST API. Samples in C#, Java, PHP, Python, Node.js, and browser JavaScript, plus AI-powered PDF to XRechnung conversion. Ready for German B2G invoicing via ZRE, OZG-RE, and Peppol.
-
Updated
Aug 6, 2026 - HTML