The OAuth application functionality will display on the username menu, if you have the privilege to Manage user applications,
Privilege: Manage user applications
To work with OAuth applications, click on the User icon in the top right-hand corner of the screen to open the username menu and select Manage applications.
To add an application, click the + button. Then enter the details of the application.
Add privileges to OAuth applications
On the privileges tab, select a subset of your privileges for the application. By default, all of your privileges are selected.
Abiquo will add the new application to the applications list and display the API key and an API secret key.
Users can view the keys, inspect the privileges assigned to the application and delete the application.