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better-auth

Implement email/password authentication with OAuth and MFA in Node.js applications.

Updated Aug 23, 2026
Search Tags:#authorization#security#authentication#oauth#user management#identity#passwordless#mfa
One-click install
npx skills add https://github.com/The1Studio/ClaudeAssistant --skill better-auth
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: better-auth
Source: https://github.com/The1Studio/ClaudeAssistant/tree/main/.claude/skills/better-auth
Command: npx skills add https://github.com/The1Studio/ClaudeAssistant --skill better-auth

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires argon2-cffi, python-dotenv, pytest, pytest-cov, coverage, and includes scripts (resource) and references (resource) components.

What problem does it solve? This Skill provides comprehensive guidance for implementing robust and secure authentication and authorization systems in applications. It simplifies the complexities of various authentication methods, including email/password, OAuth providers, and advanced features like MFA, ensuring user data protection and secure access control.

Core Features & Use Cases:

  • Diverse Authentication Methods: Covers implementing traditional email/password login, integrating popular OAuth providers (Google, GitHub), and advanced features like Multi-Factor Authentication (MFA) and passwordless login.
  • Security Best Practices: Guides on secure database integration for user credentials and overall security best practices for authentication flows.
  • Use Case: A developer needs to add user authentication to a new web application, supporting both email/password and Google login, and wants to ensure the system is secure and scalable. This skill provides the necessary tools and knowledge.

Quick Start: Implement email/password authentication for a new Node.js application, including user registration and login functionalities.