ZUGFeRD / Factur-X

both2026-07-01

POST /wp-json/api/v2/create-zugferd generates a ZUGFeRD/Factur-X bundle from the shared POP payload.

Output

Always JSON, with three base64 attachments:

attachments.pdf — visual PDF
attachments.xml — EN16931 CII XML
attachments.hybrid_pdf — hybrid PDF with embedded XML

Good to know

no outbound delivery (webhook/integrations) exists on this route
supports payload-only generation via RapidAPI (X-RapidAPI-Key without a POP X-API-Key); in this mode the payload must contain every required field explicitly
in sandbox, invoice_number is prefixed with SANDBOX-
supported fiscal variants: standard VAT, reverse charge, intra-EU 0%, export 0%, exempt, general outside-scope; not supported: OSS, margin scheme, split payment

Consumer-side verification

Use validation.hybrid_pdf.has_embedded_xml and validation.hybrid_pdf.embedded_xml_matches in the response as an immediate check that the XML is correctly embedded in the hybrid PDF.