1️⃣ Install Node.js (Skip if already installed) ​

Ensure Node.js version ≥ 18.0

bash

# Ubuntu / Debian users
curl -fsSL https://deb.nodesource.com/setup_lts.x | sudo bash -
sudo apt-get install -y nodejs
node --version

# macOS users
sudo xcode-select --install
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
brew install node
node --version

🧭 Uninstall Other Proxy Client CLI First (Optional) ​

Step 1: Check Installation Location

---

Check if installed in local project

bash

npm ls @anthropic-ai/claude-code

Check if installed globally

bash

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

🧹 Step 2: Execute Uninstallation

---

Uninstall locally installed package

bash

npm uninstall @anthropic-ai/claude-code

Uninstall globally installed package

bash

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

2️⃣ Install Claude Code ​

Claude Code Native Version Installation ​

bash

# Install with Homebrew on macOS, Linux
brew install --cask claude-code
# Install via script on macOS, Linux, WSL
curl -fsSL https://claude.ai/install.sh | bash
# Install on Windows
PowerShellirm https://claude.ai/install.psliex

Claude Code npm Installation ​

bash

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

3️⃣ Getting Started ​

Obtain Auth Token: ANTHROPIC_AUTH_TOKEN: Will be sent to you separately, format like: "cr_..."

API Address: ANTHROPIC_BASE_URL: The connection URL given to you is this site's API service address, same as the main site address

Run in your project directory:

bash

cd your-project-folder
export ANTHROPIC_AUTH_TOKEN=cr_...
export ANTHROPIC_BASE_URL=your-connection-url
claude what AI model are you

After running: Select your preferred theme + Enter Confirm security notice + Enter Use default Terminal configuration + Enter Trust working directory + Enter

Start coding with your AI programming partner in the terminal! 🚀

4️⃣ Configure Environment Variables (Recommended) ​

Environment Variables ​

bash

# Mac and Linux environment variables
export ANTHROPIC_BASE_URL="connection-url"
export ANTHROPIC_AUTH_TOKEN="your-key"
cd your-project-folder
claude

Windows CMD Environment Variables ​

bash

set ANTHROPIC_BASE_URL=connection-url
set ANTHROPIC_AUTH_TOKEN=your-key
cd your-project-folder
claude

Windows PowerShell Environment Variables ​

bash

$env:ANTHROPIC_BASE_URL="connection-url";
$env:ANTHROPIC_AUTH_TOKEN="your-key"
cd your-project-folder
claude

You can now use Claude Code

To avoid repeating input every time, add environment variables to bash_profile and bashrc: ​

Mac or Linux - Add to configuration files: ​

bash

echo -e '\n export ANTHROPIC_AUTH_TOKEN=your-key' >> ~/.bash_profile
echo -e '\n export ANTHROPIC_BASE_URL=connection-url' >> ~/.bash_profile
echo -e '\n export ANTHROPIC_AUTH_TOKEN=your-key' >> ~/.bashrc
echo -e '\n export ANTHROPIC_BASE_URL=connection-url' >> ~/.bashrc
echo -e '\n export ANTHROPIC_AUTH_TOKEN=your-key' >> ~/.zshrc
echo -e '\n export ANTHROPIC_BASE_URL=connection-url' >> ~/.zshrc

After restarting the terminal, directly use:

bash

cd your-project-folder
claude

You can now use Claude Code