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name: better-auth description: Expert Better Auth implementation for TypeScript/JavaScript authentication. Covers sessions, OAuth providers, plugins, adapters, and security. Use when working with authentication, login, signup, sessions, OAuth, social login, or user management. user-invocable: false

Better Auth Expert

Overview

Better Auth is a comprehensive authentication library for TypeScript/JavaScript applications with built-in support for sessions, OAuth, plugins, and multiple database adapters.

Quick Start

Copybun add better-auth

Documentation Structure

• installation.md - Installation and setup
• basic-usage.md - Basic usage patterns
• introduction.md - Introduction to Better Auth
• concepts/ - Core concepts (sessions, database, plugins)
• authentication/ - Auth methods (email, OAuth, passkeys)
• plugins/ - Available plugins
• adapters/ - Database adapters
• integrations/ - Framework integrations
• guides/ - How-to guides
• reference/ - API reference
• examples/ - Example implementations
• errors/ - Error handling

Key Features

• Session-based authentication
• OAuth providers (Google, GitHub, Discord, etc.)
• Email/Password authentication
• Passkeys/WebAuthn
• Two-factor authentication
• Multiple database adapters
• Plugin system

Instructions

1. Configure auth instance with database adapter
2. Set up session management
3. Add authentication providers as needed
4. Use plugins for extended functionality
5. Integrate with your framework

Documentation Reference

Official site: https://www.better-auth.com