You can enable or disable API from here and have other settings which will reflect on your API and hence on the mobile app.
Steps to store firebase Database URL which is used in Android APP and to track Drivers in Admin panel
Sign in to Firebase Console and generate new private key of your firebase project which you will used for Fleet manager.
Rename your downloaded file to firebase_credentials.json
Replace your file at PROJECT_FOLDER/framework/storage/firebase/ location
Then store your firebase Database URL here.