The Computop Paygate API allows you to seamlessly process and manage payments, supporting 350+ payment methods worldwide. Built on REST principles, the API is designed to be predictable and developer-friendly, with resource-oriented URLs, JSON-encoded requests and responses, and standard HTTP status codes.
Security
The Computop Paygate API is designed with maximum security while remaining easy to implement. All communication occurs over HTTPS (TLS 1.2 or higher), ensuring end-to-end encryption at the transport level. This prevents packet sniffing, replay attacks, and other vulnerabilities without requiring additional encryption of the data itself.
Test Before You Go Live
Use our test environment to test your integration without affecting live data. The root URL determines whether the request is for test or live integration.
https://test.computop-paygate.com/api/v2/
https://www.computop-paygate.com/api/v2/
Securely authenticate API requests using Basic Auth or OAuth 2.0
The Computop Paygate API supports two authentication methods to ensure secure access to payment processing and management endpoints. Choose the approach that aligns with your integration needs:
Basic Authentication
Use your Merchant ID as the username and API Key as the password. Combine them in the format MerchantID:APIKey, encode the string using Base64, and include it in the Authorization header with the Basic prefix for direct access to endpoints.
OAuth 2.0
Generate a short-lived JSON Web token (JWT) by authenticating with your API key via the authorization/oauth/token endpoint.
Create checkout session
This endpoint generates a URL for a hosted payment page where customers can securely select their preferred payment method and complete their transaction.
Create payment
This endpoint is used to initiate a payment for a specific payment method. You can choose between two integration types:
Note that not all payment methods support both HOSTED and DIRECT integration types. Some support only one of these options, while others support both. For detailed information about the supported integration types for each payment method, refer to the payment method-specific documentation in our product guide.
Confirm payment
This endpoint is used for payment methods that require a multi-step payment flow. It allows you to confirm a previously created payment instance (initiated via the Create Payment endpoint) to complete the transaction. This step is essential for certain payment methods to finalize the payment process.
Incremental authorization
This endpoint allows you to increase the authorized amount for an existing card transaction when the initial authorization is insufficient. The additional amount is appended to the original authorization, and the total authorized amount reflects both.
Reverse payment
This endpoint is used to reverse a payment that has not yet been captured, effectively canceling the authorization.
Capture payment
This endpoint is used to capture an existing authorized payment.
Refund payment
This endpoint is used to refund a captured payment.
Refund payment without reference
This endpoint is used to refund a payment without reference.
Retrieve payment details by Payment ID
This endpoint is used to retrieve payment details with the Payment ID (payId)
Retrieve payment details by Transaction ID
This endpoint is used to retrieve payment details with the Transaction ID (transId)
Update payment details
This endpoint is used to update payment details
Create payment link
This endpoint allows you to generate a payment link that can be shared with customers via email, SMS, or other channels. When customers click the link, they are redirected to a hosted payment page where they can select their preferred payment method and complete the transaction.