Claude Code

An AI-powered interactive terminal coding assistant that helps you write, edit, debug, and understand code through natural language.

Claude Code is a powerful CLI tool built on Anthropic’s Claude AI that brings intelligent coding assistance directly to your terminal. Use natural language to write code, fix bugs, navigate large codebases, and automate complex workflows — all without leaving your development environment.

Quick Start

Get Claude Code running and make your first request in under 5 minutes.

Installation

Detailed installation instructions for all platforms and methods.

Slash Commands

Control Claude Code’s behavior with over 40 built-in slash commands.

Command Reference

Complete reference for every slash command and its options.

What you can do

Write & edit code

Ask Claude to implement features, refactor functions, or fix bugs across your entire codebase.

Run shell commands

Execute bash commands, run tests, and manage files — Claude handles the terminal for you.

Search & navigate

Find files, grep for patterns, and understand complex codebases through conversation.

Multi-agent tasks

Spawn parallel sub-agents to tackle large tasks concurrently with the Agent system.

Extend with MCP

Connect external tools, databases, and APIs via Model Context Protocol servers.

Automate with hooks

Trigger custom scripts on tool events like file edits, command runs, and session start.

Get started

1. Install Claude Code

   Install via npm globally or using a native installer for your platform.

   npm install -g @anthropic-ai/claude-code
   
2. Authenticate

   Run claude for the first time and follow the login prompt to authenticate with your Anthropic account or API key.

   claude
   
3. Start coding

   Navigate to your project directory and start a session. Type a task in plain English.

   cd my-project
   claude
   > Fix the TypeError in src/api/client.ts
   
4. Explore commands

   Use /help inside Claude Code to see all available slash commands and their descriptions.

   /help
   

Claude Code works best in a git repository. It uses the repository context to understand your project structure and provide more accurate suggestions.

Explore the docs

Core Concepts

Learn about the tools, agents, and skills that power Claude Code.

Configuration

Customize behavior, set permissions, and configure MCP servers.

Guides

Integrate with your IDE, set up plugins, manage memory, and more.

Troubleshooting

Diagnose common issues and get Claude Code working smoothly.