How Does It Work?
Clients access the User Data service through the User Data API, sending a request to Visa with the end-user's name and at least one end-user attribute: phone number, email, and/or address. The User Data service will return a match score representing the strength of the association between the end-user's name and each attribute. User Data may also return additional data points that provide clients with further insight. For example, additional data points can show if a phone number is associated to a landline or mobile or whether the line is active or not.