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Legacy 2Checkout API

Legacy 2Checkout API

Last updated: 04-May-2022
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This section includes documentation for the old 2Checkout API.

Getting started

Integrating with 2Checkout is easy. We provide several methods of integration to best fit your needs and support 7 different server-side languages. Follow the steps below to begin your integration.

Learn how to integrate

Use our documentation to learn how you can integrate your site with our service. Test our INS (Instant Notification System), the Admin API, Shopping Cart Integration, and any one of our checkout experience offerings. Select from one of the programming languages listed below to view all specific documentation.

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Need help?

Do you have a question? If you didn’t find the answer you are looking for in our documentation, you can contact our Support teams for more information. If you have a technical issue or question, please contact us. We are happy to help.

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