Authentication
Sign in to unlock saved ads, quota and billing.
Create account first. Verification emails will redirect to /auth/callback.
Create account
Switch mode and continue with the same credentials.
Google sign-in: In Supabase → Authentication → Providers, enable Google and paste Client ID & Secret from Google Cloud Console (APIs & Services → Credentials → OAuth client). In that OAuth client, set Authorized redirect URI to https://YOUR_PROJECT_REF.supabase.co/auth/v1/callback and Authorized JavaScript origins to your site (e.g. http://localhost:3001). In Supabase → URL Configuration, add Redirect URL: your site + /auth/callback (same as NEXT_PUBLIC_SITE_URL).