Only registered developers can add applications. To become a developer, contact the Nexaas team.
Since you are a registered developer, go to the Nexaas ID developer area, click in the plus signal box and fill the required fields.
The Callback URI is essential to the application’s proper working and the most important information.
After created the application, in the “show” page there’s a details section with the three informations you need to make it work: client ID, secret and redirect URI.