{
  "slug": "firebase-auth",
  "name": "Firebase Auth",
  "url": "https://firebase.google.com/products/auth",
  "cat": "auth",
  "group": "back",
  "tagline": "Mobile-first auth from Google",
  "price": "Free · Identity Platform free to 50k MAU · SMS billed per message",
  "tier": "mixed",
  "pick": false,
  "what": "Google's authentication service, strongest on mobile. Standard email and social sign-in is free with no user cap; the upgraded Identity Platform tier is free to 50,000 MAU and then billed through Google Cloud. Phone and SMS verification is billed per message and requires the paid Blaze plan.",
  "why": "Still the least-effort option for a native iOS or Android app, with mature SDKs, offline handling and free anonymous auth for try-before-you-signup flows.",
  "warn": "SMS auth is both a real cost and a fraud target — SMS pumping attacks on Blaze projects have produced large surprise bills. Exporting users is possible, but passwords use a Google-specific scrypt variant that complicates migration.",
  "install": "npm i firebase",
  "category": {
    "key": "auth",
    "name": "Auth & user management",
    "desc": "Free tiers exploded in 2026 — auth is effectively free for most solo builders now.",
    "group": "back",
    "groupName": "Give it a backend"
  },
  "freshness": null,
  "health": {
    "ok": true,
    "status_code": 200,
    "final_url": null,
    "checked_at": "2026-08-18T16:48:12.002+00:00"
  },
  "corrected_at": null,
  "upstream_changed_at": null
}