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Overview

Claude Code is Anthropic’s official command-line programming assistant. By configuring LaoZhang API, you can:

🚀 Stable Connection

Direct access, no proxy needed

💰 Cost Effective

No $200/month Claude Max subscription

⚡ High Concurrency

Unlimited parallel requests

🔧 Simple Setup

Complete configuration in minutes

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Quick Start

Simplified Setup: If you don’t want to register a Claude account, check the Project Configuration section below. Using .claude.json file can completely bypass official verification.

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1. Install Claude Code

Run the following command to install globally: 
npm install -g @anthropic-ai/claude-code
Requires Node.js 18 or higher. If not installed, download from nodejs.org.

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2. Get API Key

  1. Visit LaoZhang API Console
  2. Create a new token
  3. Copy the key for later use

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3. Set Environment Variables

  • macOS/Linux
  • Windows
Edit ~/.zshrc or ~/.bashrc:
# LaoZhang API Configuration
export ANTHROPIC_API_KEY="sk-your-laozhang-api-key"
export ANTHROPIC_BASE_URL="https://api.laozhang.ai"
Apply changes:
source ~/.zshrc

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4. Launch Claude Code

Navigate to your project directory and start: 
cd ~/Desktop/my-project
claude
Create .claude.json in your project root to bypass Claude verification: 
{
  "apiKey": "sk-your-laozhang-api-key",
  "apiBaseUrl": "https://api.laozhang.ai",
  "hasCompletedOnboarding": true
}
Important: Adding "hasCompletedOnboarding": true completely bypasses Claude account verification. No need to:
  • Register a Claude account (difficult, requires overseas phone)
  • Worry about account suspension
  • Complete any authorization steps
Security Note: .claude.json contains sensitive information:
  1. Add to .gitignore to avoid committing
  2. Don’t share project archives containing this file

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Model Selection

Available models through LaoZhang API:
ModelModel IDFeaturesRecommended For
Claude 4 Sonnetclaude-sonnet-4-20250514Best codingComplex code tasks
Claude Opus 4.1claude-opus-4-20250514Enhanced reasoningDifficult problems
Claude 4 Sonnet Thinkingclaude-sonnet-4-20250514-thinkingChain of thoughtComplex reasoning
Claude 3.5 Sonnetclaude-3-5-sonnetStable, reliableDaily development

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Usage Guide

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Basic Commands

claude
# Shows API Key and Base URL
# Confirm configuration and continue

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Workflow

  1. Start: Run claude in project directory
  2. Describe: Input your programming needs
  3. Interact: Claude understands context and provides suggestions
  4. Apply: Claude can directly modify files

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Supported Features

  • ✅ Code generation and optimization
  • ✅ Bug fixing and debugging
  • ✅ Code refactoring
  • ✅ Documentation writing
  • ✅ Test case generation
  • ✅ Technical Q&A
  • ✅ Multi-file editing (Agent mode)

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Troubleshooting

Check the following:
  1. Environment variables are correctly set
  2. API key is valid
  3. Network connection is stable
echo $ANTHROPIC_API_KEY
echo $ANTHROPIC_BASE_URL
Create .claude.json with hasCompletedOnboarding: true:
{
  "apiKey": "sk-your-laozhang-api-key",
  "apiBaseUrl": "https://api.laozhang.ai",
  "hasCompletedOnboarding": true
}
Ensure you’re using a LaoZhang API key. Check at LaoZhang API Console.
npm update -g @anthropic-ai/claude-code

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Best Practices

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Effective Prompts

Good prompts:
"Refactor this Python function for efficiency and add type annotations"
"This code has a memory leak, find and fix it"
"Write unit tests for this React component"

Avoid vague prompts:
"Improve my code"  # Too vague

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Performance Tips

  1. Use project config: .claude.json avoids verification, faster startup
  2. Keep conversations coherent: Handle related tasks in one session
  3. Be specific: Clear descriptions reduce round trips

Official Docs

Claude Code Official Documentation

API Console

Manage API Keys

Model Info

Learn about Claude models

Cline Setup

VS Code AI Agent
Need help? Visit LaoZhang API for support.