better-auth

# Better Auth Skills Complete authentication setup and integration guide using Better Auth for TypeScript/JavaScript applications. ## Available Sub-Skills | Skill | File | Use When | |-------|------|----------| | Best Practices | [best-practices-SKILL.md](best-practices-SKILL.md) | Configuring Better Auth, database adapters, sessions, plugins, security | | Create Auth | [create-auth-SKILL.md](create-auth-SKILL.md) | Scaffolding auth from scratch, adding login/signup to a project | ## Quick Reference ### Setup 1. `npm install better-auth` 2. Set `BETTER_AUTH_SECRET` and `BETTER_AUTH_URL` env vars 3. Create `auth.ts` with database + config 4. Create route handler for your framework 5. Run `npx @better-auth/cli@latest migrate` ### Supported Frameworks Next.js (App/Pages Router), SvelteKit, Nuxt, Astro, Express, Hono, SolidStart ### Supported Databases PostgreSQL, MySQL, SQLite, MongoDB (via Prisma, Drizzle, or direct drivers) ### Key Plugins twoFactor, organization, passkey, magicLink, emailOtp, username, admin, apiKey, bearer, jwt, sso ## Source From [better-auth/skills](https://github.com/better-auth/skills).