Developer platform · OpenAPI 3.1
OpenAPI 3.1 contract now available
The official Peppox OpenAPI 3.1 contract is now available at https://api.peppox.com/openapi.yaml. It documents the PDF2Peppol four-step flow, structured invoices and credit notes, UBL generation and configured Peppol submission, sent and received document retrieval, PDF access, and public Peppol participant discovery. Import it into Swagger, Postman or compatible client generators. Keep your API key on your server.