The Contact API is used to get contacts/friends/connections data from the user’s social account.This is one of the APIs that makes up the LoginRadius Friend Invite System. The data will normalized into LoginRadius’ standard data format. This API requires setting permissions in your LoginRadius Dashboard.
Note: Facebook restricts access to the list of friends that is returned. When using the Contacts API with Facebook you will only receive friends that have accepted some permissions with your app.
Supported Providers: Facebook, Foursquare, Google, LinkedIn, Live, Twitter, Vkontakte, Yahoo