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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# Let Codex use your browser

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

## Let Codexuse your browser.

Codex clicks, types and reads pages in your own Chrome, logged in as you.

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

Connect your agent

[Play a full game against Stockfish level 7 on Lichess. Read the live board, make each move in the browser, and report the result.](https://browser-use.com/showcase/videos/chess.mp4)

PromptPlay a full game against Stockfish level 7 on Lichess. Read the live board, make each move in the browser, and report the result.

## 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

Do I need a Chrome extension?

No. Paste one prompt into Codex and it sets itself up. Chrome asks once for permission.

How do I know which tab Codex is using?

The tab Codex 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=codex-browser-page)

Connect your agent