3. Procard.Pay Protocol

This page describes the incoming protocol of the Procard.Pay dispatch system

Protocol Description

When registering a client - an online store or a service provider - the system assigns unique access keys:

  • merchant_id - unique identifier of the client in the system,

  • private_key - secret key to access the system.

The client sends its requests to the URL:

Requests are sent using the POST method.

The system always returns a proprietary card token to the merchant in the Callback request when a Purchase / Hold / Verify / PurchaseOnMerchant transaction is made, which can then be used by the customer in place of the card details.

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