Claude CLI

Anthropic's Claude CLI provides access to the Claude family of models, which perform well at reasoning, code analysis, and structured output generation.

Setup

1. Install the CLI: Follow the official Anthropic documentation.

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

2. Authenticate: Either set the environment variable or run login:

   export ANTHROPIC_API_KEY="sk-ant-..."
   # or
   claude login

3. Verify it works: Test in your terminal:

   claude "hello"

4. Configure in Burp: Open Burp AI Agent → Settings → AI Backend and set:

Setting	Value
Preferred Backend	Claude CLI (select from dropdown)
Claude CLI Command	claude (or the full path, e.g., /usr/local/bin/claude)

To specify a model, include the flag in the command field:

Setting	Value
Claude CLI Command	claude --model sonnet

Troubleshooting

• "command not found": Ensure claude is installed and in your system PATH.

• Authentication errors: Verify your ANTHROPIC_API_KEY is set correctly, or re-authenticate with claude login.

• Empty responses: Check the Burp extension output tab for error details. The model name may be incorrect.