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Better Auth
The most complete TypeScript auth library — everything in your project, not an external service.
Claude Code Cursor Codex Windsurf
Overview
Better Auth became the new default for TypeScript authentication: email/password, social logins, sessions, 2FA, organizations and permissions — all as code in your project and your database, without per-user pricing of hosted services.
The agent wires it into any framework (Next, Astro, Hono...) and any database via adapters; plugins add magic links, passkeys and more in a few lines.
The agent wires it into any framework (Next, Astro, Hono...) and any database via adapters; plugins add magic links, passkeys and more in a few lines.
Who Is This For?
- Full auth without a paid external service
- Social logins, sessions and 2FA fast
- Multi-tenant with organizations and roles
- Complete ownership of user data
Installation
Setup for Claude Code
npm install better-authExplore AI Tools
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