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Firebase Cloud Messaging

Push Notifications Free key (no card)

AuthenticationFree key (no card)
Rate limitFree with no quota on all Firebase plans

Documentation: firebase.google.com ยท Checked Sep 13, 2026

About

Firebase Cloud Messaging (FCM) is how apps send push notifications to Android and iOS phones. And it's free on every Firebase plan, even in production. You register devices, then send notifications from your server or the Firebase console. Since it's part of Google's Firebase, it plugs right into the rest of the Firebase toolkit.

Details

Free to start. You may need a free key, but no credit card.

Auth: Free key (no card)

Rate limit: Free with no quota on all Firebase plans

Verified: 2026-09-13

Best for: business developer personal

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Setup

  1. Create a free Firebase project
  2. Add the Firebase SDK to your Android/iOS app
  3. Collect each device's registration token
  4. Get a service-account credential for your server
  5. Send notifications with the FCM HTTP v1 API
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