---
updatedAt: 2025-05-29T22:14:20.000Z
agentTools:
  projectIndex: https://openbanking.satispay.com/llms.txt
---

# API Authentication

The API authentication is based on Internet-Draft: [Signing HTTP Messages](https://tools.ietf.org/html/draft-cavage-http-signatures-10) proposed as a part of the Web Payments work.