An external token provider is a type of entity in the payment industry with its own flow that typically collects the customer payment method and transaction details. In some cases, they perform 3D-Secure authentication and provide the 3D-Secure authentication values. The first time a customer uses a card with the external token provider, the external token provider performs 3DS authentication and stores the 3DS values from the successful authentication in a token.

Nuvei REST API 2.0 supports these external token providers:

• Apple Pay
• Google Pay