Auth systems
Authentication code is the highest-risk purchase — pick listings that pass security checks and document their threat model.
5 quality-scored listings.
Authentication Starter
MobileAuth: React Native Auth Screens
TeamGate: Multi-Tenant Auth + Roles
PasskeyAuth: Passwordless Auth Module
AuthKit: Drop-In Authentication System
Buyer's guide: auth systems
Quality auth listings implement CSRF protection, rate limiting, secure session cookies, and refresh-token rotation for JWTs. CodeCudos's automated security scan flags exposed secrets and insecure cookie flags before listings go live. For higher-stakes deployments, treat any auth listing as a starting point and have a professional audit.
Related use cases
Frequently asked questions
Should I buy auth or use Clerk / NextAuth?▾
Clerk and Auth.js (NextAuth) cover most needs. Buy a custom auth listing when you need full data-model control, on-prem deployment, or an OAuth flow not supported by the SaaS options.
Is MFA included?▾
The better listings include TOTP (Google Authenticator) or WebAuthn passkeys. SMS 2FA is increasingly viewed as legacy.