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Test2FCM FCM HTTP v1
firebase

Compose push notification

All fields marked * are required

Project credentials
This is not a device token. It expires in ~1 hour — regenerate when it stops working.
Target devices
{{ tokenList.length }} device{{ tokenList.length === 1 ? '' : 's' }} detected · sent as individual v1 requests
Message
Data-only messages are delivered silently to the app (handled in code) — no tray notification is shown by the system.
Maps to Android click_action and Web Push fcm_options.link.
{{ dataError }}
All values are auto-converted to strings (an FCM v1 requirement for the data block).
POST {{ endpointDisplay }}
{{ payloadPreview }}
{{ results.total }}Total
{{ results.success }}Delivered
{{ results.failed }}Failed
{{ r.ok ? 'OK' : 'FAIL' }} {{ maskToken(r.token) }} {{ r.ok ? 'accepted' : r.error }}
Open source · Developed by Sujeet Kumar · Updated to FCM HTTP v1

Send with FCM HTTP v1

You need two things — your Project ID and a short-lived access token.

1 Project ID → PROJECT ID

Your Firebase project identifier.

  • Open Firebase Console → select your project.
  • Click the gear icon → Project settings.
  • Copy the value under General → Project ID.
2 Access Token (OAuth 2.0) → ACCESS TOKEN

OAuth 2.0 token from gcloud — not the FCM device token.

  • This is not your FCM registration / device token (never paste APA91… here).
  • Install the Google Cloud SDK, then run:
gcloud auth login
gcloud auth application-default login
gcloud auth print-access-token
  • Copy the token — it usually starts with ya29… — and paste it into Access Token.
Access Token ≠ Device Token. The device token goes in the FCM Registration Token field only.
The access token is short-lived (about 1 hour). When sends start failing with 401 UNAUTHENTICATED, just run gcloud auth print-access-token again and paste the new one.
Open Firebase Console ↗ Install gcloud SDK ↗ gcloud token docs ↗