Firebase Auth alternative
The Firebase Auth alternative for SaaS teams
Authagonal gives you enterprise SSO, SCIM, MFA, audit logs and branded login — every feature on every plan, with no per-connection fees.
Why teams move off Firebase Auth
- Enterprise SSO (SAML/OIDC) only appears if you upgrade to the paid Identity Platform tier, and there is still no SCIM for selling to businesses.
- Multi-tenancy and audit logs also sit behind the paid Identity Platform tier, and even then multi-tenancy is auth-layer only and branding stays basic.
- Ties you to the Google and Firebase ecosystem rather than a portable, standards-first identity layer.
Firebase Auth vs Authagonal
| Firebase Auth | Authagonal | |
|---|---|---|
| Enterprise SSO | Paid Identity Platform tier only | Unlimited connections, included |
| SCIM provisioning | Not provided | Included on every plan |
| B2B multi-tenant | Paid tier, auth-layer only | Per-tenant by design |
| Audit & branding | Audit on the paid tier; branding basic | Audit logs + branded login, included |
| Self-host option | None | Open-source core, self-hostable |
Ready to switch?
Start free, no card required. Every feature is included from day one.