# 3DS {% admonition type="danger" name="Preview only" %} This is a preview of the next major version and is subject to change. Estimated availability: Late 2026 {% /admonition %} Verify your customer's identity to minimize fraud. Use our Strong Customer Authentication (SCA) to benefit from liability shift. __Authentication__ Set your headers ``` Authorization: {your_credentials} Content-Type: application/json WP-Api-Version: 2026-12-01 ``` Replace `{your_credentials}` with your base64-encoded Basic Auth username and password. __DNS whitelisting__ Whitelist the following URLs: * `https://try.access.worldpay.com/` * `https://access.worldpay.com/` Please ensure you use DNS whitelisting, not explicit IP whitelisting. When you make a request within Access Worldpay, you should always cache the response returned. Version: 2026-12-01 ## Servers Test (Try) ``` https://try.access.worldpay.com/3ds ``` Live ``` https://access.worldpay.com/3ds ``` ## Security ### BasicAuth Type: http Scheme: basic ## Download OpenAPI description [3DS](https://worldpay-portal.eu.redocly.app/_bundle/products/3ds/@20261201/openapi.yaml) ## 3DS Authentication 3DS authentication request. Merchant facing API. ### Authentication - [POST /authentication](https://worldpay-portal.eu.redocly.app/products/3ds/20261201/openapi/authentication/authenticate.md): Authenticate your customer by submitting order and risk data. ### Query - [GET /{authenticationId}](https://worldpay-portal.eu.redocly.app/products/3ds/20261201/openapi/authentication/authenticationquery.md): Query for the latest authentication state.