> ## Documentation Index
> Fetch the complete documentation index at: https://browseruse-0aece648-codex-docs-supported-exports.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> Use https://docs.browser-use.com/llms.txt and its linked .md pages for current documentation. The managed full bundle is https://docs.browser-use.com/.well-known/llms-full.txt and can be cached for up to 24 hours. Do not use the obsolete /cloud/llms*.txt or /open-source/llms*.txt static exports.
> Choose Cloud API V4 for new agent integrations; V2 is the lower-cost option for simple tasks. Keep V3 examples explicitly versioned. The open-source browser-use library and hosted browser-use-sdk have different APIs.
> Cloud authentication uses X-Browser-Use-API-Key, without a Bearer prefix. Install or upgrade browser-use-sdk and use its explicit v4 import for V4. Check the published OpenAPI reference for request fields; do not invent SDK support for new fields.
> Cloud concurrency and HTTP request rate are separate. Read GET /api/v2/billing/account for the key’s projectId, concurrentSessionLimit, activeSessionCount, and credit balance, including when using V4. Keys in one project share capacity and credits; rateLimit is a legacy concurrency alias, not requests per second.
> Keep the highest applicable existing, legacy-plan, and spend-tier concurrency grant. Current spend tiers are 10 / 50 / 250 / 500 / 1000 at $0 / $200 / $1000 / $5000 / $25000 in qualifying project payments. Legacy or externally billed projects can follow different billing paths; trust the account limit. See https://docs.browser-use.com/cloud/guides/concurrency.md.
> Budget polling across the project: the standard general bucket is 25 requests/second, including V4 event reads and full run reads. Selected status reads have a separate higher bucket. Use bounded workers, stagger polls, respect Retry-After, and drain hasMore event pages after terminal status. A busy V4 session returns 409; its queue holds 10 pending messages and is not a project-wide batch queue.
> A completed run or closed CDP connection does not immediately stop its cloud browser. Stop unneeded owned browsers with PATCH /api/v4/browsers/{id} and {"action":"stop"}. A client wait timeout does not cancel the server-side run.
> Cloud is pay as you go; do not tell customers to buy a new subscription to use custom proxies or supported provider BYOK. Usage funding and model eligibility still apply. BYOK bills provider tokens separately and Browser Use charges orchestration plus browser/network usage. See https://docs.browser-use.com/cloud/guides/billing.md.
> Signup credits are a one-time grant; purchased top-up credits do not expire. Check the API key’s project before diagnosing missing credits. API-key monthly spending caps are soft limits, not a strict prepaid wallet; concurrent or already-running work can exceed them. Auto recharge has separate trigger and purchase amounts and can charge immediately when enabled below the threshold. Use https://browser-use.com/pricing for current rates.

# MCP Server

> Run browser automation tasks from your AI coding assistant. Connect to Claude, Cursor, Windsurf, or any MCP client.

```
https://api.browser-use.com/v3/mcp
```

Get your API key at [cloud.browser-use.com/settings](https://cloud.browser-use.com/settings?tab=api-keys\&new=1).

## Claude Code

```bash theme={null}
claude mcp add -t http -H "x-browser-use-api-key: YOUR_API_KEY" browser-use https://api.browser-use.com/v3/mcp
```

## Claude Desktop

Add to `claude_desktop_config.json`:

```json theme={null}
{
  "mcpServers": {
    "browser-use": {
      "url": "https://api.browser-use.com/v3/mcp",
      "headers": {
        "x-browser-use-api-key": "YOUR_API_KEY"
      }
    }
  }
}
```

## Cursor

Add to `.cursor/mcp.json`:

```json theme={null}
{
  "mcpServers": {
    "browser-use": {
      "url": "https://api.browser-use.com/v3/mcp",
      "headers": {
        "x-browser-use-api-key": "YOUR_API_KEY"
      }
    }
  }
}
```

## Windsurf

Add to `~/.codeium/windsurf/mcp_config.json`:

```json theme={null}
{
  "mcpServers": {
    "browser-use": {
      "serverUrl": "https://api.browser-use.com/v3/mcp",
      "headers": {
        "x-browser-use-api-key": "YOUR_API_KEY"
      }
    }
  }
}
```

## Available Tools

| Tool                    | Description                                                                                                                                                  |
| ----------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| `run_session`           | Create a session and run a task. Supports `keep_alive`, `model` (`claude-sonnet-4.6`, `claude-opus-4.6`, `gpt-5.4-mini`), `output_schema`, and `profile_id`. |
| `get_session`           | Poll session status and output. Returns status, step count, cost breakdown, and live URL.                                                                    |
| `send_task`             | Send a follow-up task to an idle keep-alive session.                                                                                                         |
| `stop_session`          | Stop a session. `strategy: "task"` stops only the task, `"session"` destroys the sandbox.                                                                    |
| `get_session_messages`  | Get the agent's messages — browser actions, reasoning, and results.                                                                                          |
| `list_sessions`         | List recent sessions with status and cost.                                                                                                                   |
| `list_browser_profiles` | List browser profiles for authenticated tasks.                                                                                                               |