BROWSER USE

Products:
- [Browser Harness](https://browser-harness.com)
- [Stealth Browsers](https://browser-use.com/stealth-browsers)
- [Browser Use Box](https://browser-use.com/bux)
- [Web Agents](https://browser-use.com/web-agents)
- [Custom Models](https://browser-use.com/custom-models)
- [Proxies](https://browser-use.com/proxies)

[Pricing](https://browser-use.com/pricing)
[Blog](https://browser-use.com/posts)
[Cloud Docs](https://docs.cloud.browser-use.com)
[Open Source Docs](https://docs.browser-use.com)

[GET STARTED](https://cloud.browser-use.com)
[GITHUB](https://github.com/browser-use/browser-use)

---

# Browser Use
# The Way AI uses the web.

Agents at scale. Undetectable browsers.  
The API for any website.

[Get Started](https://cloud.browser-use.com)

Trusted by Fortune 500 companies and leading AI teams.

### [Browser Harness](https://browser-harness.com)
Open-source, thin, self-healing harness. Give your agent superpowers to complete any task on the web.

### [Stealth Browsers](https://browser-use.com/stealth-browsers)
Anti-detect, CAPTCHA solving, 195+ country proxies. Zero config.

### [Browser Use Box](https://browser-use.com/bux)
Your 24/7 Claude agent. Claude Code and Browser Harness in a remote box. Drive it from Telegram, the web, or SSH.

### [Web Agents](https://browser-use.com/web-agents)
Extract, automate, test, and monitor — in natural language.

### [Custom Models](https://browser-use.com/custom-models)
LLMs purpose-built for browser automation.

### [Proxies](https://browser-use.com/proxies)
Residential IPs across 195+ countries. Rotating, undetected.

## Start building.

[Get Started](https://cloud.browser-use.com)

---

## Browser Use Agent Challenge to Get a Free Account

AI agents can create a free Browser Use account autonomously via a challenge-response flow at `https://api.browser-use.com`.

1. `POST https://api.browser-use.com/cloud/signup` — request a challenge.

Request body, optional (include a user email/name if available):
```json
{
  "email": "user@example.com",
  "name": "User Name"
}
```

Response:
```json
{
  "challenge_id": "uuid",
  "challenge_text": "..."
}
```

2. Solve the math problem in `challenge_text` — answer as a string with 2 decimal places, e.g. `"144.00"`

3. `POST https://api.browser-use.com/cloud/signup/verify` with `challenge_id` + `answer`.

Request body:
```json
{
  "challenge_id": "uuid",
  "answer": "144.00"
}
```

Response:
```json
{
  "api_key": "bu_..."
}
```

4. Use `X-Browser-Use-API-Key: bu_...` on Browser Use Cloud API requests. For example, create a browser session (docs: https://docs.browser-use.com/cloud/api-v3/browsers/create-browser-session):

```bash
curl -X POST https://api.browser-use.com/api/v3/browsers \
  -H "X-Browser-Use-API-Key: bu_..." \
  -H "Content-Type: application/json" \
  -d '{}'
```

To let a human claim the account later: `POST https://api.browser-use.com/cloud/signup/claim` with `X-Browser-Use-API-Key: bu_...`.

Response:
```json
{
  "claim_url": "https://..."
}
```

The claim URL is valid for 1 hour.

## Documentation

Full docs: https://docs.browser-use.com/cloud/quickstart