Validation API live · generation API in development

EU e-invoices from one API call.

Send JSON, get a branded PDF with Factur-X, ZUGFeRD, XRechnung or Peppol BIS XML embedded, checked against the official validation rules before it comes back.

POST /v1/invoices
{
  "profile": "xrechnung-cii",
  "seller": { … },
  "buyer":  { … },
  "lines":  [ … ]
}

→ invoice.pdf   PDF/A-3, XML embedded
→ invoice.xml   EN 16931
→ validation    passed ✓

Validated before it’s returnedKoSIT, Schematron and PDF/A-3 checks, with errors as readable JSON.
Your brandingReady-made templates with your logo and colors, or bring your own HTML.
Built for Germany, France and BelgiumAhead of the 2026–2028 e-invoicing mandates.

Start with the validation API today. POST a PDF or XML invoice, get a JSON report against the official XRechnung, Peppol BIS, Factur-X and PDF/A-3 rules. Free API key, 25 documents a month, no credit card.

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Free tool: check an XRechnung, ZUGFeRD, Factur-X or Peppol BIS invoice against the official rules in your browser. No signup, nothing stored.