Expojet exposes clerk, better-auth, supabase, firebase, and none. Custom JWT generation is disabled in current releases until credential storage, password policy, rate limiting, and refresh-token revocation are configured.

Clerk is the stable hosted Expo flow and supports optional social sign-in providers via --socials. Better Auth requires a monorepo, Drizzle ORM, a configured database, and the --experimental flag. Supabase and Firebase generate provider setup with public mobile configuration; Supabase supports email OTP with an eight-digit code flow. Use none when authentication is managed elsewhere.

npx create-expojet@latest my-app --experimental --auth better-auth --structure monorepo

Never put server secrets in EXPO_PUBLIC_* variables.

Authentication providers