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NOTIFI.CHECK / GUIDE

Find Your OneSignal App ID & REST API Key

Sending a test push through OneSignal needs three things: an App ID, a REST API key, and a Player ID to target. Here's where to find each one in the OneSignal dashboard.

  1. STEP 01

    Open your OneSignal app

    Sign in to the OneSignal dashboardand select the app you want to test push notifications for. If you don't have one yet, create a new app and add a Web Push or Mobile Push platform.

  2. STEP 02

    Go to Settings → Keys & IDs

    In the left sidebar, click Settings, then Keys & IDs. This page shows your OneSignal App ID and REST API Key.

  3. STEP 03

    Copy the App ID and REST API Key

    Copy both values. The App ID identifies which OneSignal app to send through; the REST API key authenticates the request. Treat the REST API key like a password — it can send to your entire subscriber base.

  4. STEP 04

    Get a Player ID / Subscription ID

    Open Audience → Subscriptions in the OneSignal dashboard and copy the Player ID (also called Subscription ID) of any test device or browser that has subscribed to your app. This is the target for a single test push.

  5. STEP 05

    Send a test push from Notifi Check

    Head back to the Notifi Check tester, choose the ONESIGNAL tab, and paste the App ID, REST API key, and Player ID. Both credentials are sent once per request directly to the OneSignal API and never stored server-side.

SECURITY NOTE

A OneSignal REST API key can send notifications to your entire subscriber base — treat it like a password. Don't commit it to a public repo or share it. Notifi Check sends it once per request directly to the OneSignal API and never stores it server-side.

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