Welcome to the Invoice API

This API allows generating PDF invoices and converting them to ZUGFeRD format.

API Endpoints

The Invoice API provides the following endpoints:

Generate PDF Invoice

POST /api/v1/invoices/pdf

Generates a PDF invoice from the provided invoice data.

Generate ZUGFeRD E-Invoice

POST /api/v1/invoices/zugferd

Generates a ZUGFeRD-compliant PDF/A-3 invoice with embedded XML metadata.

Health Check

GET /api/v1/invoices/health

Checks if the API is running.

Authentication

All API endpoints require authentication using an API key.

Include the X-API-KEY header with your requests.