Enable `Click to Pay` Customer Authentication Using the API {#boarding-click-to-pay-auth-enable-intro}
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This section shows you how to enable `Click to Pay` Authentication using the Boarding Registration Service (BRS) API.

Endpoint {#boarding-click-to-pay-auth-enable-intro_d11e752}
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**Production:** `POST ``https://api.cybersource.com``/boarding/v1/registrations`{#boarding-click-to-pay-auth-enable-intro_d11e759}  
**Test:** `POST ``https://apitest.cybersource.com``/boarding/v1/registrations`{#boarding-click-to-pay-auth-enable-intro_d11e769}