Claude Code

1. Install Node.js (Skip if installed)

Ensure Node.js version ≥ 18.0

Windows
macOS
Ubuntu / Debian

Download: https://nodejs.org/dist/v22.18.0/node-v22.18.0-x64.msi

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

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

Uninstall Other Proxy Clients (Optional)

Check installation:

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

Uninstall:

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

2. Install Claude Code

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

Verify installation:

claude --version

3. Get API Key

base_url = "https://llm.ai-nebula.com"
api_key = "sk-zbTYx*******************************fceTvn5"

4. Configure Environment Variables

Mac / Linux
Windows CMD
Windows PowerShell

export ANTHROPIC_BASE_URL="https://llm.ai-nebula.com"
export ANTHROPIC_AUTH_TOKEN="sk-zbTYx*******************************fceTvn5"
export ANTHROPIC_MODEL="kimi-k2-250905"
cd your-project-folder
claude

set ANTHROPIC_BASE_URL=https://llm.ai-nebula.com
set ANTHROPIC_AUTH_TOKEN=sk-zbTYx*******************************fceTvn5
set ANTHROPIC_MODEL=kimi-k2-250905
cd your-project-folder
claude

$env:ANTHROPIC_BASE_URL="https://llm.ai-nebula.com"
$env:ANTHROPIC_AUTH_TOKEN="sk-zbTYx*******************************fceTvn5"
$env:ANTHROPIC_MODEL="kimi-k2-250905"
cd your-project-folder
claude

Chat AI

Coding

Tech Engineering

Translation

1. Install Node.js (Skip if installed)

Uninstall Other Proxy Clients (Optional)

2. Install Claude Code

3. Get API Key

4. Configure Environment Variables

Chat AI

Coding

Tech Engineering

Translation

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

​Uninstall Other Proxy Clients (Optional)

​2. Install Claude Code

​3. Get API Key

​4. Configure Environment Variables

1. Install Node.js (Skip if installed)

Uninstall Other Proxy Clients (Optional)

2. Install Claude Code

3. Get API Key

4. Configure Environment Variables