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API Specification

xTool API (recommended)

xTool is our modern, fully API-based platform for automated electronic invoice processing.
The REST API enables:

  • Conversion (JSON ↔ XML ↔ PDF)
  • Validation (XRechnung, ZUGFeRD, XSD/XSLT)
  • Sending and receiving via Peppol or email
  • Real-time status tracking
Swagger Documentation

 

Legacy API (Invoice-Portal)

This older interface remains supported but is being phased out (for existing integrations only). Specification for file transfer (incoming/outgoing):

https://api.invoice-portal.de/documentation/

 

For further questions, please contact our support team: support@invoice-portal.de

 

How many decimals can I put in the invoice?
Invoice-Portal
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