Auth systems

Authentication code is the highest-risk purchase — pick listings that pass security checks and document their threat model.

2 quality-scored listings.

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.

Common stacks for auth systems

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.