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Browserbase

BrowserbaseMCP Server

Added to Onei
v2.4.3
Apache-2.0

Summary

Browserbase's official MCP server — cloud browser automation with Stagehand's natural-language actions.

Features

  • Cloud browser sessions with proxies and stealth built in
  • Natural-language page actions via Stagehand
  • Structured data extraction from any page

Installation

Set up this MCP server in your favorite AI agent — copy a ready-made configuration below.

Any MCP-compatible agent

Most agents (Claude, Cursor, Windsurf, VS Code, and more) read a standard mcpServers configuration.

  1. Open your agent's MCP configuration file.
  2. Merge the snippet below into it, filling in the environment variables with your own values.
  3. Restart the agent — the "Browserbase" tools will be available.
{
  "mcpServers": {
    "browserbase-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@browserbasehq/mcp-server-browserbase"
      ],
      "env": {
        "BROWSERBASE_API_KEY": "your-api-key",
        "BROWSERBASE_PROJECT_ID": "your-project-id"
      }
    }
  }
}

Description

Browserbase's official MCP server gives an assistant a cloud browser rather than a local one, which removes the infrastructure problems that make local automation fragile at scale.

What it provides
  • Managed sessions. Browsers run in Browserbase's cloud with proxy support, fingerprint management, and captcha handling.
  • Stagehand actions. Instead of CSS selectors, the assistant describes what to do — "click the login button", "fill in the search field" — and Stagehand resolves it against the page. Selectors break when a site changes markup; descriptions usually do not.
  • Structured extraction. Define the shape of the data you want and get typed results back rather than raw HTML.
  • Observation. Ask what actions are available on the current page before choosing one.
  • Live session view for watching what the browser is doing, which is invaluable when an agent silently goes wrong.
When to choose it over a local browser

When you need concurrency, when the target site blocks datacentre traffic, or when you want session recordings for debugging. Requires a Browserbase account; runs with npx @browserbasehq/mcp-server-browserbase.

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