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better-auth/docs/content/docs/introduction.mdx
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---
title: Introduction
description: Introduction to Better Auth.
---
Better Auth is a framework-agnostic, universal authentication and authorization framework for TypeScript. It provides a comprehensive set of features out of the box and includes a plugin ecosystem that simplifies adding advanced functionalities. Whether you need 2FA, passkey, multi-tenancy, multi-session support, or even enterprise features like SSO, creating your own IDP, it lets you focus on building your application instead of reinventing the wheel.
## Features
Better Auth aims to be the most comprehensive auth library. It provides a wide range of features out of the box and allows you to extend it with plugins. Here are some of the features:
<Features/>
...and much more!
---
## AI tooling
### LLMs.txt
Better Auth exposes an `LLMs.txt` that helps AI models understand how to integrate and interact with your authentication system. See it at [https://better-auth.com/llms.txt](https://better-auth.com/llms.txt).
### Skills
Better Auth provides skills that can be added to your AI coding assistant to help it understand Better Auth best practices and implementation patterns.
```bash title="terminal"
npx skills add better-auth/skills
```
### MCP
Better Auth provides an MCP server so you can use it with any AI model that supports the Model Context Protocol (MCP).
<AddToCursor />
#### Manual Configuration
Alternatively, you can manually configure the MCP server for each client:
<Tabs items={["Claude Code", "Open Code", "Manual"]}>
<Tab value="Claude Code">
```bash title="terminal"
claude mcp add --transport http better-auth https://context7.com/better-auth/better-auth
```
</Tab>
<Tab value="Open Code">
```json title="opencode.json"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"better-auth": {
"type": "remote",
"url": "https://context7.com/better-auth/better-auth",
"enabled": true,
}
}
}
```
</Tab>
<Tab value="Manual">
```json title="mcp.json"
{
"better-auth": {
"url": "https://context7.com/better-auth/better-auth"
}
}
```
</Tab>
</Tabs>