Firebase Cloud Messaging

API

Send push notifications to devices and topics from your server

Price: No-cost Cloud Messaging
Access: OAuth 2.0 access token

About

Firebase Cloud Messaging sends notification and data messages to registered app devices or topics. The HTTP v1 API accepts a short-lived OAuth 2.0 access token; Firebase Admin SDKs can handle authentication and message construction on trusted servers.

What you can do with it

Send a push notification to a device registration token
Broadcast a message to devices subscribed to a topic
Send platform-specific notification or data payloads

Get started

Create a Firebase project and enable the Cloud Messaging API
Obtain a device registration token in your app
Generate a service account OAuth access token on a trusted server

Example

curl -X POST "https://fcm.googleapis.com/v1/projects/$FIREBASE_PROJECT_ID/messages:send" \
  -H "Authorization: Bearer $FCM_ACCESS_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"message":{"token":"DEVICE_REGISTRATION_TOKEN","notification":{"title":"Hello","body":"New update"}}}'

Details

Hosting: Hosted service
Available in: Worldwide
Official SDKs: JavaScript/TypeScript, Python, Java, Go, C#
MCP server: Local
Works with: Google Cloud