better-auth

Implement authentication and authorization for TypeScript applications with OAuth, 2FA, and RBAC.

1|Updated Mar 9, 2026
One-click install
npx skills add https://github.com/docaohieu2808/claude-skills --skill better-auth-docaohieu2808
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: better-auth
Source: https://github.com/docaohieu2808/claude-skills/tree/main/better-auth
Command: npx skills add https://github.com/docaohieu2808/claude-skills --skill better-auth-docaohieu2808

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill provides a robust and flexible authentication system, handling everything from basic email/password sign-ups to advanced features like OAuth, 2FA, and passkeys, simplifying the complex task of securing user access.

Core Features & Use Cases

  • Multi-Method Authentication: Supports email/password, OAuth (Google, GitHub, etc.), passkeys, and more.
  • Advanced Security: Includes 2FA/MFA, rate limiting, and secure session management.
  • Framework Agnostic: Works seamlessly with various web frameworks (Next.js, Nuxt, SvelteKit, etc.).
  • Use Case: Integrate secure user login and registration into your new web application with minimal boilerplate code, ensuring a safe and user-friendly experience.

Quick Start

Follow the setup instructions in the SKILL.md file to integrate Better Auth into your project.

Frequently Asked Questions about better-auth

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I add authentication to a TypeScript web application?

You can add authentication to a TypeScript application using a framework-agnostic library that manages email/password, OAuth, passkeys, and sessions. It integrates with web frameworks via dedicated handlers and client libraries, requiring minimal boilerplate.

Does this authentication solution work with Next.js and SvelteKit?

Yes, this framework-agnostic authentication solution works seamlessly with various web frameworks including Next.js, Nuxt, and SvelteKit. It uses dedicated handlers and client libraries to integrate secure user login without forcing a specific platform.

What is the best way to implement passkeys and 2FA for user login?

The best way to implement passkeys and 2FA is using a comprehensive authentication system with built-in advanced security features. This solution natively manages WebAuthn passkeys, multi-factor authentication, and secure session management out of the box.

How does rate limiting work with secure session management?

Rate limiting works alongside secure session management by utilizing built-in security features to control request flow and protect user access. This combination prevents brute-force attacks while maintaining robust authorization and safe active sessions.

Can I set up OAuth providers like Google and GitHub for TypeScript apps?

Yes, you can set up OAuth providers like Google and GitHub for TypeScript apps. This authentication solution supports multi-method authentication, allowing you to easily configure external OAuth providers alongside email/password and passkeys.

How do I manage role-based access control in a TypeScript application?

You can manage role-based access control (RBAC) by utilizing the built-in authorization features of this framework-agnostic solution. It handles RBAC natively alongside authentication methods, ensuring secure permission management across your application.