Claude Code CLI

Get API Key

Go to the API Keys page to create your API key.

Install Claude Code

Refer to the Claude Code documentation for installation.

• Official installation via npm is no longer recommended.
• Installation will verify if you're in a Claude service region. Use a VPN if needed.

If you installed Claude Code via npm, older versions (e.g., 2.1.98) may have compatibility issues. Testing has shown the following error:

There's an issue with the selected model (claude-haiku-4-5-20251001). It may not exist or you may not have access to it

Please uninstall the npm version, for example:

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

Then, reinstall Claude Code using the native installation method recommended in the official documentation, such as:

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

Environment Variable Configuration

After installing Claude Code, configure the following environment variables:

export ANTHROPIC_BASE_URL=https://tokenoff.com/api
export ANTHROPIC_AUTH_TOKEN=<your_api_key_here>

Then enter in the command line:

claude

This will enter interactive mode.

Environment Cleanup

If you have previously used Claude Code services from other providers, such as logging in with a Claude subscription service, please clean up your local environment as follows before using TokenOff, otherwise residual configurations may cause the API Key to be invalid.

• Logout. After entering interactive mode, type /logout to logout.

  claude
  
  /logout

• Delete cache.

  rm -rf ~/.claude
  rm -rf ~/.claude.json

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