Overview

# Install Node.js LTS via winget
winget install OpenJS.NodeJS.LTS

# Restart PowerShell and verify
node -v
npm -v
# Expected: v18.0.0 or newer

# Install globally
npm install -g @anthropic-ai/claude-code

# Verify installation
claude --version

# Create directory and write configuration file in PowerShell
New-Item -ItemType Directory -Force -Path "$HOME\.claude"
Set-Content -Path "$HOME\.claude\settings.json" -Value @'
{
  "env": {
    "ANTHROPIC_BASE_URL": "https://your-noah-host",
    "ANTHROPIC_AUTH_TOKEN": "noah_sk_your_key",
    "ANTHROPIC_MODEL": "claude-sonnet-5-5"
  }
}
'@

# (Alternative for Command Prompt / CMD via setx):
# setx ANTHROPIC_BASE_URL "https://your-noah-host"
# setx ANTHROPIC_AUTH_TOKEN "noah_sk_your_key"
# setx ANTHROPIC_MODEL "claude-sonnet-5-5"

# Navigate to your Windows project folder
cd C:\Users\YourName\Projects\my-app

# Run Claude Code!
claude "hi"

# Ask Claude Code to inspect files and build:
claude "Read package.json and explain the dependencies"

# Install via Homebrew
brew install node

# Verify
node -v
npm -v

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

mkdir -p ~/.claude
cat > ~/.claude/settings.json <<'JSON'
{
  "env": {
    "ANTHROPIC_BASE_URL": "https://your-noah-host",
    "ANTHROPIC_AUTH_TOKEN": "noah_sk_your_key",
    "ANTHROPIC_MODEL": "claude-sonnet-5-5"
  }
}
JSON

cd ~/Projects/my-app
claude "hi"

# Headers required for all /v1/* requests:
# Authorization: Bearer noah_sk_your_key
# anthropic-version: 2023-06-01
# Content-Type: application/json

curl https://your-noah-host/v1/models \
  -H "Authorization: Bearer noah_sk_your_key"

curl -N -X POST https://your-noah-host/v1/messages \
  -H "Authorization: Bearer noah_sk_your_key" \
  -H "anthropic-version: 2023-06-01" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-sonnet-5-5",
    "max_tokens": 1024,
    "stream": true,
    "messages": [
      {"role": "user", "content": "Explain how prompt caching saves credits in 2 sentences."}
    ]
  }'

curl -X POST https://your-noah-host/v1/messages \
  -H "Authorization: Bearer noah_sk_your_key" \
  -H "anthropic-version: 2023-06-01" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-sonnet-5-5",
    "max_tokens": 4096,
    "tools": [
      {
        "name": "Read",
        "description": "Read a file from disk",
        "input_schema": {
          "type": "object",
          "properties": {"path": {"type": "string"}},
          "required": ["path"]
        }
      }
    ],
    "messages": [
      {"role": "user", "content": "Check the contents of README.md"}
    ]
  }'