Claude Code Guide | Let AI Run

Claude Code Guide

This page explains how to install Claude Code and configure settings.json for gateway URL, auth token, and compatibility flags.

1. Important Note

If Claude Code reports invalid beta flag, make sure CLAUDE_CODE_DISABLE_EXPERIMENTAL_BETAS=1 is set.

2. Install

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

If claude is not found, verify your npm global bin path is in PATH.

3. Configure

Open the config file:

vim ~/.claude/settings.json

Paste:

{
  "env": {
    "ANTHROPIC_BASE_URL": "https://api.letai.run",
    "ANTHROPIC_AUTH_TOKEN": "sk-xxxx",
    "CLAUDE_CODE_DISABLE_EXPERIMENTAL_BETAS": "1",
    "CLAUDE_CODE_ATTRIBUTION_HEADER": "0"
  }
}

claude

claude "What is the capital of France?"

Claude Code Guide

1. Important Note

2. Install

3. Configure

4. Usage

5. Troubleshooting