To provide a secure and uniform web services for emerging payment institutions, UPI develops a Sever-based API Gateway as a front-end to communicate in HTTP methods. This document specifies general requirements of APIs between UPI Server-side API Gateway and API clients, including network communication, application protocol as well as security requirements.
This document applies to API products including:
• SaaS Card Issuing Service for Issuers
• SaaS Card Issuing Service for App Gateway
• Remittance & P2P Transfer
• Card Not Present Payment