API Reference

The aim of this documentation is to assist developers in integrating with U2 Pay's APIs, outlining the functionalities and methods to be employed, detailing the information to be transmitted and received, and furnishing examples.

This manual provides comprehensive references to all operations available in the REST API. These operations can be accessed using either your store's specific integration key or the session key generated through your establishment's authentication. For further details regarding authentication,Introduction to authentication

Furthermore, it is necessary for the developer to have knowledge of the environment to be used, as each one requires different authorization and authentication procedures. The following is the environment domain information for each environment: