Find the right API
Use search when the broad directory stops being enough. Filter by category, auth, CORS, signup friction, and result freshness until the shortlist becomes obvious.
Start with category and auth when you know the integration shape. Use free, signup, and CORS flags when you are trying to remove setup friction.
Sort by verification or response time when the final call is about reliability, not just category fit.
5 results after 1 active filters. Remove any one below without losing the rest of the cut.
Cloud Firestore API
Cloud Firestore API is Google Cloud managed NoSQL document database — real-time sync, offline support, strong consistency; a top choice for mobile / web app backends.
Firebase App Check API
Firebase App Check API protects backend APIs to accept only requests from legitimate apps — preventing abuse, credential misuse, and bot attacks.
Firebase Hosting API
Manage Firebase Hosting sites, preview channels, releases, versions, and file uploads from deployment pipelines.
Firebase Management API
Firebase Management API programmatically manages Firebase projects — create projects, add web/iOS/Android apps, configure hosting/database/auth.
Firebase Realtime Database API
Firebase Realtime Database API is Firebase original NoSQL real-time database — JSON tree data model, millisecond sync; one of the earliest "real-time" databases.