fcm.googleapis.com
Firebase Cloud Messaging is Google's push messaging service for delivering notifications and data messages to Android, iOS, and web apps. The fcm.googleapis.com service hosts the server-side API used to send those messages for a Firebase project.
Firebase Cloud Messaging on fcm.googleapis.com exposes one developer integration surface: the authenticated HTTP v1 API for sending messages to devices, topics, or conditions.
- Firebase Cloud Messaging HTTP v1 APIdiscovered
In the Google Cloud Console service accounts page, create or select a service account in the Google Cloud project linked to your Firebase project, generate a JSON key if you need one, and use it to mint an OAuth 2.0 access token. Firebase's FCM guide says to authorize send requests with a short-lived access token in the Authorization: Bearer <access_token> header, typically using the https://www.googleapis.com/auth/firebase.messaging scope (or https://www.googleapis.com/auth/cloud-platform). See Authorize with a Service Account from a Different Project and the general send via HTTP v1 API guide.
conventions · 0/8 published
- integrations.json✗
/.well-known/integrations.json - llms.txt✗
/llms.txt - API catalog✗
/.well-known/api-catalog - OpenAPI document✗
/api/schema/, /openapi.json, /swagger.json, /api/openapi.json, or /v1/openapi.json - MCP server card✗
/.well-known/mcp/server-card.json - OAuth protected resource✗
/.well-known/oauth-protected-resource - Agent card✗
/.well-known/agent-card.json - Agent skills✗
/.well-known/agent-skills/index.json
Publish these signals → /publishing