Public proof

Sample invoice JSON plus passed validation report.

This asset shows the smallest Fakturai workflow: structured invoice data in, ZUGFeRD / Factur-X output after technical validation. The examples are intentionally linkable for outbound, LinkedIn, and demos.

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Sample invoice JSON

Input for an API-generated ZUGFeRD test invoice.

{
  "invoice_date": "2026-06-27",
  "due_date": "2026-07-11",
  "currency": "EUR",
  "seller": {
    "name": "Fakturai Demo GmbH",
    "vat_id": "DE123456789"
  },
  "buyer": {
    "name": "Acme GmbH",
    "vat_id": "DE987654321"
  },
  "lines": [
    {
      "name": "API-generated ZUGFeRD invoice test",
      "quantity": "1",
      "unit": "C62",
      "unit_price": "249.00",
      "vat_rate": "19.00"
    }
  ]
}

Download sample JSON

Passed validation report

Example of a passed technical validation report with no hard failures.

{
  "validation_status": "passed",
  "format": "ZUGFeRD / Factur-X EN 16931",
  "validator": {
    "name": "KoSIT validator",
    "profile": "EN16931-CII"
  },
  "hard_failures": [],
  "advisory_findings": []
}

Download validation report

Technical format validation does not replace the issuer's responsibility for invoice content, tax treatment, or archival.