Install Claude Code

How to install and configure Claude Code

📦 Install Claude Code

System Requirements

Operating System: Windows 10+, macOS 12+, Linux (Ubuntu 20.04+)
Node.js 18 or higher
Git (recommended)

Step 1: Install Node.js

If you haven't installed Node.js yet, install it first:

# Method 1: Download installer from official website (recommended)
# Visit https://nodejs.org and download the LTS version, then double-click to install

# Method 2: Use winget to install
winget install OpenJS.NodeJS.LTS

# Verify after installation
node --version
npm --version

# Install using Homebrew (recommended)
brew install node@22

# Or download from official website: https://nodejs.org

# Verify installation
node --version
npm --version

# Ubuntu / Debian
curl -fsSL https://deb.nodesource.com/setup_22.x | sudo -E bash -
sudo apt-get install -y nodejs

# Verify installation
node --version
npm --version

Step 2: Install Claude Code

npm install -g @anthropic-ai/claude-code

💡 Windows users: If you encounter permission issues, run the terminal as administrator. macOS/Linux users can add sudo before the command.

Verify after installation:

claude --version

What is Claude Code

Learn about Claude Code's features and capabilities

Configure API Access

How to configure Claude Code to use AiRouter's API endpoint and key

On this page

📦 Install Claude Code

System Requirements

Step 1: Install Node.js

Step 2: Install Claude Code