There are many situations in which you may need to know if a Visa account provided by your customer is valid before making services available to that customer in your project. Examples include validating a sender and/or recipient account before initiating a money transfer between them or validating an account before loading it into a digital wallet or card-on-file repository.
The Payment Account Validation API offers several methods that you can use to determine if a particular Visa account is valid and in good standing. Before using the API, it is important to understand what the available methods are and how they work. The API currently has three methods of account validation: Account Verification, the Address Verification Service (AVS), and Card Verification Value (CVV2) Validation.