1 · Configure your app
Send push notification
Result
OneSignal credentials
Enter your OneSignal App ID and REST API Key. Both are found in OneSignal dashboard → Settings → Keys & IDs.
How to test push notifications
- Save your OneSignal credentials above.
- Build a new APK on the Build tab.
- Install it on an Android device and open it once — it registers with OneSignal (permission prompt appears on Android 13+).
- Come back here → Send Notification tab → pick the app → send.