{"title":"Authentication-only integration","category":"default","creationDate":1678191960,"content":"
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Adyen is no longer developing the Classic API integration<\/strong><\/p>\n

This page is for the Classic API (\/authorise<\/code>) integration, which we no longer accept new integrations with. <\/p>\n

We strongly recommend migrating to the newer 3D Secure authentication-only on Checkout API<\/a> integration. To use this newer integration, you must also migrate to the Checkout API<\/a>.<\/p>\n<\/div><\/div>\n

In an authentication-only flow, you perform the 3D Secure 2 authentication independent of the payment authorisation flow. The transaction can go through either a frictionless or a challenge authentication flow. If the 3D Secure authentication is successful, you will get the authentication data that you will need to authorise the payment with another PSP or acquirer.<\/p>\n

If after the authentication you decide to\u00a0process the payment with us, we also provide a way so that you can continue with the payment authorisation<\/a>.<\/p>\n

3D Secure 1 authentication-only fallback<\/h3>\n

It is possible that the authentication falls back to redirecting the shopper to the issuer's site. Therefore, we recommend that your integration also supports the redirect flow<\/a>.<\/p>\n

Before\u00a0you begin<\/h2>\n

Before you begin to integrate, make sure you have followed the Get started with Adyen guide<\/a> to:<\/p>\n