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    Developer Documentation for Relay

    Relay is a collection of API (Application Program Interface) gRPC services. You use these services to perform various payment related tasks for your merchants.

    Depending on your specific use case, you can combine method calls from different services. A few tasks and the required succession of method calls are described in this Relay developer guide section.

    The complete service definitions and their corresponding .protobuf files are documented in the API reference section.

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    Learn about available payment methods, the corresponding payment method providers and available methods per payment method.

    Find all the information you need before starting to integrate Relay services.

    Find our complete Relay service's API reference.