PayMate India Business Payments API
Legacy India API (PMXClients service). Twelve JSON-over-POST methods let a business add vendors and customers as contacts, book and approve vendor payments, raise collection requests, generate hosted checkout links, check the Xpress account balance and pull payment/collection reports. Requests and responses are AES-256 encrypted and authenticated with MerchantIdentification, TerminalIdentification, XpressID and the registered email in the request headers, from a whitelisted domain or IP.