{"id":"fcm-api","name":"Firebase Cloud Messaging (FCM)","homepage":"https://firebase.google.com/docs/cloud-messaging","repo_url":null,"category":"notifications","subcategories":["push-notifications","mobile","google-cloud"],"tags":["fcm","firebase","google","push-notifications","mobile","android","ios","web","rest-api","sdk"],"what_it_does":"Google's Firebase Cloud Messaging service for sending free push notifications to Android, iOS, and web apps at massive scale with reliable delivery.","use_cases":["Sending push notifications to Android and iOS mobile apps","Topic-based notifications for broad audience broadcasting","Device group messaging for multi-device user targeting","Web push notifications to Chrome, Firefox, and Safari users","High-volume transactional notifications at no cost"],"not_for":["SMS or email delivery","Rich analytics without adding additional Firebase analytics","Teams that want to avoid Google infrastructure dependency"],"best_when":"You need free, reliable push notifications for Android/iOS/web apps at any scale and are already in the Google/Firebase ecosystem.","avoid_when":"You need push + email + SMS in one platform, advanced segmentation, or want to avoid vendor lock-in to Google.","alternatives":["onesignal-api","pushover-api","expo-push-api"],"af_score":78.2,"security_score":null,"reliability_score":null,"package_type":"mcp_server","discovery_source":["github"],"priority":"low","status":"evaluated","version_evaluated":"current","last_evaluated":"2026-03-01T09:50:05.566615+00:00","performance":{"latency_p50_ms":100,"latency_p99_ms":500,"uptime_sla_percent":99.95,"rate_limits":"Up to 600 messages/second for multicast; no documented per-project limit","data_source":"llm_estimated","measured_on":null}}