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Claude Code FREE

Use the official Claude Code CLI tool with alternative API endpoints. Fast, reliable, and completely free to start.

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How to Use It

Install Claude Code CLI

First, you need to install the official Anthropic Claude Code package globally using npm. Make sure you have Node.js installed.

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

Configure Environment

Set up the environment variables to point the CLI to the free gateway. Replace sk-YOUR_TOKEN with your actual token from AgentRouter.

Get your API token here →

export ANTHROPIC_BASE_URL="https://agentrouter.org/"
export ANTHROPIC_AUTH_TOKEN="sk-YOUR_TOKEN"
export ANTHROPIC_MODEL="claude-3-5-sonnet-20241022"
export CLAUDE_CODE_USE_AUTH_TOKEN="true"

setx ANTHROPIC_BASE_URL "https://agentrouter.org/"
setx ANTHROPIC_AUTH_TOKEN "sk-YOUR_TOKEN"
setx ANTHROPIC_MODEL "claude-3-5-sonnet-20241022"
setx CLAUDE_CODE_USE_AUTH_TOKEN "true"

[System.Environment]::SetEnvironmentVariable("ANTHROPIC_BASE_URL", "https://agentrouter.org/", "User")
[System.Environment]::SetEnvironmentVariable("ANTHROPIC_AUTH_TOKEN", "sk-YOUR_TOKEN", "User")
[System.Environment]::SetEnvironmentVariable("ANTHROPIC_MODEL", "claude-3-5-sonnet-20241022", "User")
[System.Environment]::SetEnvironmentVariable("CLAUDE_CODE_USE_AUTH_TOKEN", "true", "User")

# Install Node.js first
pkg install nodejs-lts

# Set variables in .bashrc
echo 'export ANTHROPIC_BASE_URL="https://agentrouter.org/"' >> ~/.bashrc
echo 'export ANTHROPIC_AUTH_TOKEN="sk-YOUR_TOKEN"' >> ~/.bashrc
echo 'export ANTHROPIC_MODEL="claude-3-5-sonnet-20241022"' >> ~/.bashrc
echo 'export CLAUDE_CODE_USE_AUTH_TOKEN="true"' >> ~/.bashrc
source ~/.bashrc

Launch Claude

Navigate to your project directory and simply type claude. You're now ready to use Claude Code for free!

cd path/to/your-project
claude

IDE Extension / API Setup

extension

VS Code Extension (API Method)

Instead of the terminal, you can use the Claude Code extension with your own API key for a seamless UI experience.

looks_one Install Extension

Search for "Claude Code" in the VS Code Marketplace and install the official extension by Anthropic.

looks_two Choose API Method

When prompted to sign in, select the "Use API Key" instead of signing into an Anthropic account.

looks_3 Configure Endpoint

In the extension settings, set and paste your API Token.

api

Cursor API Integration

Cursor allows you to use your own API keys. Here is how to connect it to the free gateway step-by-step.

settings Open AI Settings

Go to Cursor Settings > Models and find the Anthropicsection.

key Enter API Key

Toggle on Use your own API Key and paste your AgentRouter token into the Anthropic API key field.

link Base URL

Look for the Base URL set it Anthropic Base URL.

Alternative Providers

Provider	Base URL	Free Tier
AgentRouter	https://agentrouter.org/	YES
OpenRouter	https://openrouter.ai/api/v1	YES
Official Anthropic	https://api.anthropic.com	NO