Claude Code

Project Introduction

Unleash Claude's raw power directly in your terminal. Search million-line codebases instantly. Turn hours-long workflows into a single command. Your tools. Your workflow. Your codebase, evolving at thought speed.

Official Homepage: https://www.anthropic.com/claude-code

Demo

Features

Category	Feature
Code Understanding	Deep codebase analysis, utilizing intelligent agents to search and understand project structure and dependencies
	Automatically generates high-level code overviews, quickly helping users understand the codebase
Code Editing	Supports multi-file collaborative editing, suitable for complex code modifications
	Provides practical and usable code suggestions that align with project patterns and architecture
Integration Capabilities	Supports direct execution in the terminal, eliminating context switching
	Seamless integration with VS Code and JetBrains IDEs, no copy-pasting required
Code Generation & Optimization	Automatically generates code, creates tests, fixes bugs, supporting the complete process from concept to commit
	Optimized for code generation and understanding, combining advanced models like Claude Opus 4
Security & Flexibility	Changes require explicit user authorization, ensuring safer file and command operations
	Adapts to user code standards, supports custom configurations
Toolchain Integration	Supports integration with tools like GitHub and GitLab to achieve automated workflows
	Integrates with test suites and build systems, enhancing existing development tools
Cross-Platform & Extensibility	Supports Windows, macOS, and Linux operating systems
	Configurable to run in SDKs or GitHub Actions, flexibly adapting to different needs
Key Application Scenarios	Codebase onboarding and understanding, quick ramp-up for new members
	Code issue fixing and optimization processes, from problem analysis to PR submission
	Project code refactoring and new feature implementation
User Feedback Highlights	Improves daily development efficiency, saving time spent on routine tasks
	Excellent performance in handling complex multi-step tasks, expanding development possibilities

AI Model Configuration Method

Windows Graphical Guide

1. Install Node.js Environment

Claude Code requires a Node.js environment to run.

Node.js Environment Installation Steps

Open your browser and visit https://nodejs.org/
Click the "LTS" version to download (Long Term Support version recommended)
After downloading, double-click the .msi file
Follow the installation wizard to complete the installation, keeping default settings

Windows Notes

It is recommended to use PowerShell instead of CMD
If you encounter permission issues, try running as administrator
Some antivirus software may report false positives; you may need to add an exception

Verify Installation Success

After installation, open PowerShell or CMD and enter the following commands:

node --version
npm --version

If version numbers are displayed, the installation was successful.

2. Install Git Bash

Windows Notes

In a Windows environment, Git Bash is required to install Claude Code. After installation, environment variable setup and using Claude Code will still be done in regular PowerShell or CMD.

Download and Install Git for Windows

Visit https://git-scm.com/downloads/win
Click "Download for Windows" to download the installer
Run the downloaded .exe installation file
Keep default settings during installation, and click "Next" to complete the installation

Verify Git Bash Installation

After installation, open Git Bash and enter the following command to verify:

git --version

If a version number is displayed, the installation was successful.

3. Install Claude Code

Install Claude Code

Open PowerShell and run the following command:

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

This command will download and install the latest version of Claude Code from the official npm repository.

Add ~/.local/bin to PATH (only if prompted)

[Environment]::SetEnvironmentVariable('Path', ([Environment]::GetEnvironmentVariable('Path','User') + ";$HOME\.local\bin"), 'User')

Verify Claude Code Installation

After installation, enter the following command to check if it was successfully installed:

claude --version

If a version number is displayed, congratulations! Claude Code has been successfully installed.

4. Set Environment Variables

One-Click Setup Command (Windows System)

To allow Claude Code to connect to your relay service, you need to set multiple environment variables:

iex (irm 'https://raw.githubusercontent.com/QuantumNous/new-api-docs/refs/heads/main/helper/claude-cli-setup.ps1')

windows-configure

5. Start Using Claude Code

You can now start using Claude Code!

Launch Claude Code

Open PowerShell and launch Claude Code directly:

claude

To use in a specific project:

# Navigate to your project directory
cd C:\path\to\your\project

# Launch Claude Code
claude

Select Model

Enter the command:

/model

Press Enter to select a model; usually, the default settings are sufficient.

Note: After modifying environment variables, all models (including officially preset models) will call the custom access point instead of using official account quotas.

macOS Graphical Guide

1. Install Claude Code CLI

Open Terminal

Install Claude Code

Open Terminal and run the following command:

curl -fsSL https://claude.ai/install.sh | bash

Optional: Run the provided command when prompted

echo 'export PATH="$HOME/.local/bin:$PATH"' >> ~/.bashrc && source ~/.bashrc

2. Set Environment Variables

To allow Claude Code to connect to a third-party relay service, you need to set environment variables:

One-Click Setup for Claude Code Environment Variables

Enter the command:

curl -fsSL https://raw.githubusercontent.com/QuantumNous/new-api-docs/refs/heads/main/helper/claude-cli-setup.sh | bash

macos-configure

Verify Claude Code Installation

After installation, enter the following command to check if it was successfully installed:

claude --version

If a version number is displayed, congratulations! Claude Code has been successfully installed.

3. Start Using Claude Code

You can now start using Claude Code!

Launch Claude Code

Launch Claude Code directly:

claude

To use in a specific project:

# Navigate to your project directory
cd /path/to/your/project

# Launch Claude Code
claude

Select Model (Optional)

Enter the command:

/model

Press Enter to select an official model; usually, the default model is sufficient.

Note: After modifying the ANTHROPIC_BASE_URL environment variable, all models (including officially preset models) will call the custom access point instead of using official account quotas.

4. macOS Common Issues

macOS Security Settings Preventing Execution

If the system prevents Claude Code from running:

Open "System Preferences" → "Security & Privacy"
Click "Open Anyway" or "Allow"
Or run in Terminal: sudo spctl --master-disable

Linux Graphical Guide

1. Install Claude Code

Install Claude Code

Open Terminal and run the following command:

curl -fsSL https://claude.ai/install.sh | bash

If you encounter permission issues, you can use sudo:

sudo curl -fsSL https://claude.ai/install.sh | bash

Verify Claude Code Installation

After installation, enter the following command to check if it was successfully installed:

claude --version

If a version number is displayed, congratulations! Claude Code has been successfully installed.

2. Set Environment Variables

To allow Claude Code to connect to your relay service, you need to set two environment variables:

One-Click Environment Variable Modification

Enter the command:

curl -fsSL https://raw.githubusercontent.com/QuantumNous/new-api-docs/refs/heads/main/helper/claude-cli-setup.sh | bash

macos-configure

3. Start Using Claude Code

You can now start using Claude Code!

Launch Claude Code

Launch Claude Code directly:

claude

To use in a specific project:

# Navigate to your project directory
cd /path/to/your/project

# Launch Claude Code
claude

Select Model

Enter the command:

/model

Press Enter to select an official model; usually, the default model is sufficient.

Note: After modifying the ANTHROPIC_BASE_URL environment variable, all models (including officially preset models) will call the custom access point instead of using official account quotas.

4. Linux Common Issues

Missing Dependency Libraries

Some Linux distributions require additional dependencies to be installed:

# Ubuntu/Debian
sudo apt install build-essential

# CentOS/RHEL
sudo dnf groupinstall "Development Tools"

Environment Variables Not Taking Effect

Check the following points:

Confirm that you modified the correct configuration file (.bashrc or .zshrc)
Restart the terminal or run source ~/.bashrc
Verify settings: echo $ANTHROPIC_BASE_URL

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