Supabase Auth
The auth service built into every Supabase project: email/password, magic links, OAuth providers and anonymous sign-ins, tied directly to Row Level Security.
Free tier
- 50,000 monthly active users on the Free plan
- Social OAuth providers, anonymous sign-ins, basic MFA
- Custom SMTP server supported
Paid plans: Included in Supabase Pro (from $25/month)
Best for
Apps already on Supabase, especially from Lovable.
Watch out: Leaked-password protection is a Pro feature. After deploying, update the Site URL and Redirect URLs, or confirmation emails will still point at localhost.
Related fix guides
- Supabase confirmation and magic-link emails redirect to localhost after deploy
- Fix "new row violates row-level security policy" in Lovable and Supabase apps
Sources
Checked on 2026-11-11. Vendors change pricing often, so confirm on the official page before you commit.