Better Auth Integration Guide

Always consult better-auth.com/docs for code examples and latest API.

Better Auth is a TypeScript-first, framework-agnostic auth framework supporting email/password, OAuth, magic links, passkeys, and more via plugins.

Quick Reference

Environment Variables

• BETTER_AUTH_SECRET - Encryption secret (min 32 chars). Generate: openssl rand -base64 32
• BETTER_AUTH_URL - Base URL (e.g., https://example.com)

Only define baseURL/secret in config if env vars are NOT set.

File Location

CLI looks for auth.ts in: ./, ./lib, ./utils, or under ./src. Use --config for custom path.