Adapter capabilities

 User authenticationYES
 User profileYES
 User contacts listNO
 Post to user wall / update statusNO
 Access provider APIYES

Adapter specifications

 ID Foursquare
 Protocol OAuth2
 IDp URL http://www.foursquare.com/
 Keys registeration https://www.foursquare.com/oauth/
 Wrapper ./Hybrid/Providers/Foursquare.php
Callback URL http://mywebsite.com/path_to_hybridauth/?hauth.done=Foursquare

Registering application

After registing an new application at https://www.foursquare.com/oauth/, copy the created credentials (Client ID and Client Secret) and put them on HybridAuth config file,

Set http://mywebsite.com/path_to_hybridauth/?hauth.done=Foursquare as Application Callback URL.