With one integration step, your shops will be able to use Ratepay payment methods, based on the pricing and conditions agreed on between you as a Payment Service Provider and Ratepay.
You will obtain the full control of the relationship with the merchants as payment service provider.
For each request, a valid access token must be provided in the Authorization header. See Authentication API for obtaining a valid token. The value
https://api-integration.ratepay.com/merchant/registry (for the integration environment)
or
https://api.ratepay.com/merchant/registry (for the production environment)
must be transmitted in the parameter audience for the Authentication request
Before Ratepay starts to process payments of a new shop, you need to register the shop via the Merchant Registration API. The Merchant Registration API is built around RESTful principles.
It is HTTPS-based and uses JSON as request and response format. It delivers standard HTTP response types.