BROWSER USE

- Browser Use Agents: give Browser Use a task and receive completed work. API V4 is current for new integrations.
- Browser Infrastructure: connect your agent or automation to managed browsers through SDK, REST, or CDP. Starts at $0.02/browser-hour.
- Developer tools: Open Source, Browser Harness, SDK, and MCP support the two products above.

[Developer Index](https://browser-use.com/index.md)
[Product Map](https://browser-use.com/llms.txt)
[Full Product Context](https://browser-use.com/llms-full.txt)
[Pricing](https://browser-use.com/pricing.md)
[Cloud Docs](https://docs.browser-use.com/cloud/quickstart)
[Open Source Docs](https://docs.browser-use.com/open-source/introduction)

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# Claude in Chrome without an extension

Claude in Chrome | [Browser Harness](https://browser-use.com/browser-harness)

## Let Claudeuse your Chrome.

Claude Code clicks, types and reads pages in the Chrome you already use, logged in as you. No extension.

[Try it in the cloud](https://cloud.browser-use.com/v4?utm_source=browser-use&utm_medium=claude-in-chrome-page)

Connect your agent

[Open my X mentions, pick the most relevant one, draft a thoughtful reply, and leave it unsent.](https://browser-use.com/showcase/videos/draft-x-mention-reply.mp4)

PromptOpen my X mentions, pick the most relevant one, draft a thoughtful reply, and leave it unsent.

## When a tool is missing,  
the agent writes it.

1.  agent: wants to pick a date
    
2.  agent\_helpers.py → helper missing
    
3.  agent writes itagent\_helpers.py \+ pick\_date()
    
4.  date picked
    

## Questions

Is this Anthropic's Claude in Chrome extension?

No. It is Browser Harness, open source from Browser Use. It gives Claude Code your Chrome with nothing to install in the browser.

How do I know which tab Claude is using?

The tab Claude controls gets a 🐴 at the start of its title. It works in the background, so the tab you are looking at stays yours.

What does it cost?

Nothing. Browser Harness is open source under MIT, and using your own Chrome is free. Cloud browsers are $0.02 per browser-hour if you want them.

You will never use  
the browser again.

[Try it in the cloud](https://cloud.browser-use.com/v4?utm_source=browser-use&utm_medium=claude-in-chrome-page)

Connect your agent