# introduction: Introduction
URL: /docs/introduction
Source: https://raw.githubusercontent.com/better-auth/better-auth/refs/heads/main/docs/content/docs/introduction.mdx

Introduction to Better Auth.
        
***

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).

### MCP

Better Auth provides an MCP server so you can use it with any AI model that supports the Model Context Protocol (MCP).

<AddToCursor />

#### CLI Options

Use the Better Auth CLI to easily add the MCP server to your preferred client:

<Tabs items={["Cursor", "Claude Code", "Open Code", "Manual"]}>
  <Tab value="Cursor">
    ```bash title="terminal"
    pnpm @better-auth/cli mcp --cursor
    ```
  </Tab>

  <Tab value="Claude Code">
    ```bash title="terminal"
    pnpm @better-auth/cli mcp --claude-code
    ```
  </Tab>

  <Tab value="Open Code">
    ```bash title="terminal"
    pnpm @better-auth/cli mcp --open-code
    ```
  </Tab>

  <Tab value="Manual">
    ```bash title="terminal"
    pnpm @better-auth/cli mcp --manual
    ```
  </Tab>
</Tabs>

#### 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://mcp.chonkie.ai/better-auth/better-auth-builder/mcp
    ```
  </Tab>

  <Tab value="Open Code">
    ```json title="opencode.json"
      {
          "$schema": "https://opencode.ai/config.json",
          "mcp": {
              "Better Auth": {
                  "type": "remote",
                  "url": "https://mcp.chonkie.ai/better-auth/better-auth-builder/mcp",
                  "enabled": true,
              }
          }
      }
    ```
  </Tab>

  <Tab value="Manual">
    ```json title="mcp.json"
    {
       "Better Auth": {
           "url": "https://mcp.chonkie.ai/better-auth/better-auth-builder/mcp"
       }
    }
    ```
  </Tab>
</Tabs>

<Callout>
  We provide a first‑party MCP, powered by [Chonkie](https://chonkie.ai). You can alternatively use [`context7`](https://context7.com/) and other MCP providers.
</Callout>

