API is a software interface for interacting with information systems of merchants that use IPS Assist electronic payment system in settlements with customers.
The interface supports functions such as making a payment, canceling a payment, refunding money, confirming payments, and others.
Parameters are passed by the POST method in the request body in the "key=value" format, by a SOAP request, or in the JSON format.
The choice of parameter passing format is determined on the client side and controlled by passing the Format parameter.
