Yes, you can get API credentials from PowerSchool's Developer Console in the admin portal. To make a new client, an administrator needs to log in, go to System → Developer → Developer Console, and click the "Create" button. This makes the Client ID and Client Secret, which your app can then use with OAuth 2.0 to log in and get school information like year levels, classes, teachers, students, and parents. Permissions control access, so make sure the account that made the client has the right ones.
