The Identity API returns data for an authenticated user (user access token) based on the OAuth scopes provided. Non-confidential information, such as eBay userID is returned using the default scope. Confidential data for an individual, such as address, email, phone, etc. are returned based on the OAuth scope you use in the call. For business users, all the public business information is returned using the default OAuth scope.

 

The Identity API can be used to let users log into your app or site using eBay, which frees you from needing to store and protect user's PII (Personal Identifiable Information) data.