facturx-toolkit

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 n

Enables agents to create, validate, and convert legally valid e-invoices in formats like EN 16931, Factur-X/ZUGFeRD, XRechnung, UBL 2.1, and Peppol BIS.

Validates EU electronic invoices (Peppol, XRechnung, FatturaPA, etc.) and explains validation error codes, enabling AI coding agents to check invoice validity and get fixes before rejection.

Enables AI assistants to locally parse, validate, audit, explain, generate, and convert XRechnung and ZUGFeRD/Factur-X e-invoices using official rule sets, fully offline with no API keys required.