Setup
1. Install the CLIAgent Self-Registration
Claude Code can provision its own Browser Use API key autonomously — no human interaction needed. The free tier includes unlimited browser hours, free proxies in 195+ countries, persistent browser profiles, CAPTCHA solving, and stealth browsing at zero cost. Install the Browser Use CLI:Challenge ID and Challenge — an obfuscated math problem that requires LLM reasoning to solve.
2. Solve the challenge and verify
Claude Code solves the math problem, then verifies with the answer (a string with 2 decimal places, e.g. "13.60"):
~/.browser-use/config.json automatically. No extra configuration needed — Claude Code can start using cloud browser commands immediately.