> ## Documentation Index
> Fetch the complete documentation index at: https://docs.stagehand.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Browserbase MCP Server Tools

> This guide covers the specialized tools available in the Browserbase MCP server for browser automation and interaction.

export const V3Banner = () => null;

<V3Banner />

## Overview

The Browserbase MCP server provides tools for browser automation and session management through a transport-scoped active session.

## Core Browser Automation Tools

These are the primary tools for modern web automation using natural language commands.

<Accordion title="navigate">
  Navigate to any URL in the browser

  <ParamField path="url" type="string" required>
    The URL to navigate to
  </ParamField>
</Accordion>

<Accordion title="act">
  Perform an action on the web page using natural language

  <ParamField path="action" type="string" required>
    The action to perform (e.g., "click the login button", "fill form field")
  </ParamField>
</Accordion>

<Accordion title="observe">
  Observe and find actionable elements on the page.

  <ParamField path="instruction" type="string" required>
    Specific instruction for observation (e.g., "find the login button", "locate search form")
  </ParamField>
</Accordion>

<Accordion title="extract">
  Extract data from the current page.

  <ParamField path="instruction" type="string">
    Optional extraction instruction.
  </ParamField>
</Accordion>

## Session Management

<Accordion title="start">
  Create a new Browserbase session, or attach to an existing Browserbase session, and set it as active for the current MCP transport session.

  <ParamField path="sessionId" type="string">
    Optional Browserbase session ID to attach to. If omitted, `start` creates a new Browserbase session.
  </ParamField>

  <ResponseField name="sessionId" type="string">
    Browserbase session ID now active for the current MCP transport session.
  </ResponseField>
</Accordion>

<Accordion title="end">
  Close the active Browserbase session for the current MCP transport session.

  <Info>No input parameters required.</Info>
</Accordion>

## Further Reading

<CardGroup cols={3}>
  <Card title="Model Context Protocol (MCP) Docs" icon="book" href="https://modelcontextprotocol.io/introduction">
    Learn more about the MCP protocol
  </Card>

  <Card title="Stagehand Documentation" icon="robot" href="https://docs.stagehand.dev/">
    Explore Stagehand's AI-powered browser automation
  </Card>

  <Card title="Support" icon="headset" href="mailto:support@browserbase.com">
    Get help from our support team
  </Card>
</CardGroup>