New 🚀 Now with Claude Opus 4.5 support

Accelerate your AI
workflows with Claude CLI

A command-line AI workflow tool that connects to your tools, understands your code, and accelerates your development workflows with Claude's 200K token context window.

🎁 API Access: Industry-leading models with transparent pricing
Innovating...

Built for > developers

Work with Claude directly in your codebase. Build, debug, and ship from your terminal,
IDE, Slack, or the web. Describe what you need, and Claude handles the rest.

bash powershell
pip install anthropic-cli
claude-cli ~ demo
$ claude "analyze this codebase"
🤔 Analyzing codebase...
✓ Found 147 files
✓ Primary: Python (73%)
📊 Summary
• FastAPI REST API
• PostgreSQL + SQLAlchemy
• JWT authentication
• 87% test coverage
$ claude "write tests"
🔨 Generating...
✓ Created 12 test cases

Watch Claude Code in action - analyzing and improving codebases in real-time

claude-cli ~ Welcome
✨ Welcome to the Claude CLI experience!
██████╗██╗ █████╗ ██╗ ██╗██████╗ ███████╗ ██╔════╝██║ ██╔══██╗██║ ██║██╔══██╗██╔════╝ ██║ ██║ ███████║██║ ██║██║ ██║█████╗ ██║ ██║ ██╔══██║██║ ██║██║ ██║██╔══╝ ╚██████╗███████╗██║ ██║╚██████╔╝██████╔╝███████╗ ╚═════╝╚══════╝╚═╝ ╚═╝ ╚═════╝ ╚═════╝ ╚══════╝ ██████╗██╗ ██╗ ██╔════╝██║ ██║ ██║ ██║ ██║ ██║ ██║ ██║ ╚██████╗███████╗██║ ╚═════╝╚══════╝╚═╝
🚀 Lightning Fast
🧠 200K Context
Production Ready
$ claude "Let's build something amazing"

What is Claude CLI

A powerful command-line tool that brings AI-powered workflows to your development environment with superior reasoning capabilities and extensive tool integration.

📚

Large Codebase Support

Query and edit large codebases within Claude's industry-leading 200K token context window.

🎨

Multimodal Generation

Generate apps from PDFs or images using Claude's multimodal capabilities.

⚙️

Workflow Automation

Automate operational tasks like code reviews and complex analysis.

Why Choose Claude CLI

Experience the power of AI-assisted development with Anthropic's advanced language models.

🧠

Advanced AI Integration

Built-in access to Claude Opus, Sonnet, and Haiku with state-of-the-art reasoning.

💰

Transparent Pricing

Pay-as-you-go with no hidden fees. Token-based billing with caching options.

🔍

Accurate Responses

Get precise answers with Claude's superior accuracy and reduced hallucinations.

🔧

Extensible Platform

Integrate with MCP servers and external tools seamlessly.

How to Get Started with Claude CLI

Start using Claude CLI in three simple steps

1

Install & Run

Execute 'pip install anthropic-cli' or install globally with npm for quick access.

2

Authenticate

Sign in with your API key from Anthropic Console for enhanced capabilities.

3

Start Building

Begin querying your codebase, generating apps, or automating workflows with AI assistance.

Key Features of Claude CLI

Everything you need for AI-powered development workflows and automation.

🔍 Codebase Understanding

Analyze and understand large codebases with contextual AI assistance.

📄 Multimodal Input

Generate applications from PDFs, sketches, and visual inputs.

🔄 Git Integration

Automate complex git operations and code review workflows.

🔌 Tool Connectivity

Connect with MCP servers for extended functionality.

💬 Natural Language

Interact with your codebase using natural language queries.

⚡ Fast & Efficient

Lightning-fast responses with token caching optimization.

Frequently Asked Questions

Have another question? Check our documentation or GitHub issues.

1

What is Claude CLI and how does it work?

Claude CLI is a command-line AI workflow tool that connects to your development tools, understands your codebase within a 200K token context window, and helps automate various development tasks using Anthropic's Claude AI models.

2

Do I need programming experience to use Claude CLI?

While Claude CLI is designed for developers, it's user-friendly and can help both beginners and experienced developers. Basic command-line knowledge is helpful, but the tool provides clear guidance.

3

What authentication methods are supported?

You can authenticate using API keys from Anthropic Console. The API uses transparent, pay-as-you-go pricing with token-based billing.

4

Can I use Claude CLI with existing projects?

Absolutely! Claude CLI works with both new and existing projects. Simply navigate to your project directory and run the CLI to start analyzing or automating tasks.

5

What types of tasks can I automate?

You can automate code analysis, code reviews, test generation, documentation, bug fixing, refactoring, and much more. Claude excels at complex reasoning tasks.

6

How do I get started quickly?

Simply run 'pip install anthropic-cli' in your terminal, set your API key, and start interacting with Claude to explore your codebase or generate new code.

Start building with AI assistance today

Transform your development workflow with Claude CLI.