# README

Go API client for checkout

Adyen Checkout API provides a simple and flexible way to initiate and authorise online payments. You can use the same integration for payments made with cards (including 3D Secure), mobile wallets, and local payment methods (for example, iDEAL and Sofort).

This API reference provides information on available endpoints and how to interact with them. To learn more about the API, visit Checkout documentation.

Authentication

Each request to the Checkout API must be signed with an API key. For this, obtain an API Key from your Customer Area, as described in How to get the API key. Then set this key to the X-API-Key header value, for example:

curl
-H \"Content-Type: application/json\" \\
-H \"X-API-Key: Your_Checkout_API_key\" \\
...

Note that when going live, you need to generate a new API Key to access the live endpoints.

Versioning

Checkout API supports versioning using a version suffix in the endpoint URL. This suffix has the following format: "vXX", where XX is the version number.

For example:

https://checkout-test.adyen.com/v69/payments

Release notes

Have a look at the release notes to find out what changed in this version!

Overview

This API client was generated by the OpenAPI Generator project. By using the OpenAPI-spec from a remote server, you can easily generate an API client.