# SCA Exemptions Maximize a frictionless checkout experience by using issuer data insights to apply exemptions. Exemptions are supported for Visa, Mastercard and Maestro.

__Authentication header__ ``` Authorization: {your_credentials} ``` Replace `{your_credentials}` with your base64-encoded Basic Auth username and password given to your by your Implementation Manager.

You **must** use the `Authorization` header for any request you send to our Exemptions API.

__Accept/Content-Type header__ ``` Content-Type: application/vnd.worldpay.exemptions-v1.hal+json Accept: application/vnd.worldpay.exemptions-v1.hal+json ```
We use the Accept header to identify which version of our API you are using. You must use the Accept header for any request you send to our Exemptions API.

We require the Content-Type header if the request you're sending includes a request body, and if the HTTP method is a `POST` or a `PUT`.

__DNS whitelisting__

Whitelist the following URLs:

* `https://try.access.worldpay-bsh.securedataplatform.com/`
* `https://access.worldpay-bsh.securedataplatform.com/`

Please ensure you use DNS whitelisting, not explicit IP whitelisting. Version: 1 Metadata: - category: ["3DS","SCA Exemptions"] - business: ["Enterprise"] - catalog-list: true - generated: false ## Servers Test (Try) ``` https://try.access.worldpay-bsh.securedataplatform.com ``` Live ``` https://access.worldpay-bsh.securedataplatform.com ``` ## Security ### BasicAuth Type: http Scheme: basic ## Download OpenAPI description [SCA Exemptions](https://developer.worldpay-bsh.securedataplatform.com/_bundle/products/sca-exemptions/@v1/openapi.yaml) ## Other ### Exemption assessment - [POST /exemptions/assessment](https://developer.worldpay-bsh.securedataplatform.com/products/sca-exemptions/openapi/other/assessment.md): Assess for exemption.