MCP Server Browserbase

Name: MCP Server Browserbase
Author: browserbase

by browserbaseversion 2.1.1i★ –iRuns on your computer

Registry nameio.github.browserbase/mcp-server-browserbase

Install

Overview

Description from the maker (original English)

MCP server for AI web browser automation using Browserbase and Stagehand

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Web & browsers
You need to fill in: BROWSERBASE_API_KEY, BROWSERBASE_PROJECT_ID, GEMINI_API_KEY

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
You fill in yourself: BROWSERBASE_API_KEY, BROWSERBASE_PROJECT_ID, GEMINI_API_KEY

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "browserbase": {
      "command": "npx",
      "args": [
        "-y",
        "@browserbasehq/mcp-server-browserbase"
      ],
      "env": {
        "BROWSERBASE_API_KEY": "your-value",
        "BROWSERBASE_PROJECT_ID": "your-value",
        "GEMINI_API_KEY": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add browserbase --env BROWSERBASE_API_KEY=your-value --env BROWSERBASE_PROJECT_ID=your-value --env GEMINI_API_KEY=your-value -- npx -y @browserbasehq/mcp-server-browserbase

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "browserbase": {
      "command": "npx",
      "args": [
        "-y",
        "@browserbasehq/mcp-server-browserbase"
      ],
      "env": {
        "BROWSERBASE_API_KEY": "your-value",
        "BROWSERBASE_PROJECT_ID": "your-value",
        "GEMINI_API_KEY": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "browserbase": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@browserbasehq/mcp-server-browserbase"
      ],
      "env": {
        "BROWSERBASE_API_KEY": "your-value",
        "BROWSERBASE_PROJECT_ID": "your-value",
        "GEMINI_API_KEY": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

BROWSERBASE_API_KEY secret required env
Your Browserbase API key
BROWSERBASE_PROJECT_ID required env
Your Browserbase Project ID
GEMINI_API_KEY secret required env
Your Gemini API key (default model)

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account browserbase, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Web & browsersi

More stars than 0% of the other 876 servers in this category
Published to the registry more recently than 0% of the other 876 servers in this category
Basic checks equal to or better than 100% of the other 876 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is MCP Server Browserbase safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: BROWSERBASE_API_KEY, BROWSERBASE_PROJECT_ID, GEMINI_API_KEY

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (2.1.1) reached the registry 14 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Browser Use, Chrome DevTools MCP, MCP Server Browser

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Browser Use

by browser-use

Lets AI do web tasks for you, such as filling forms, searching and extracting data, in the maker’s cloud browsers or on your computer.

Computer or cloud★ 120,087MITUpdated 16 days ago

Install

Chrome DevTools MCP

by ChromeDevTools

Lets AI use Chrome’s developer tools to inspect pages, find what makes them slow and spot errors. Made by the Chrome DevTools team.

Runs on your computer★ 54,821Apache-2.0Updated 15 days ago

Install

MCP Server Browser

by bytedance

MCP server for browser use access

Runs on your computer★ 39,550Apache-2.0Updated 14 months ago

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

Browserbase MCP Server

Archived

This repository is archived and no longer maintained.

It was originally published as a reference implementation and is retained for historical purposes. It should not be interpreted as representative of Browserbase's current production services or implementation.

The Model Context Protocol (MCP) is an open protocol that enables seamless integration between LLM applications and external data sources and tools. Whether you're building an AI-powered IDE, enhancing a chat interface, or creating custom AI workflows, MCP provides a standardized way to connect LLMs with the context they need.

This server provides cloud browser automation capabilities using Browserbase and Stagehand. It enables LLMs to interact with web pages, extract information, and perform automated actions.

This is a self-hostable version of the Browserbase hosted MCP server with the same tools and functionality. We recommend using the hosted version for the easiest setup.

Tools

This server exposes 6 tools that match the hosted Browserbase MCP server:

Tool	Description	Input
`start`	Create or reuse a Browserbase session	_(none)_
`end`	Close the current Browserbase session	_(none)_
`navigate`	Navigate to a URL	`{ url: string }`
`act`	Perform an action on the page	`{ action: string }`
`observe`	Observe actionable elements on the page	`{ instruction: string }`
`extract`	Extract data from the page	`{ instruction?: string }`

How to Setup

We currently support 2 transports for our MCP server, STDIO and SHTTP. We recommend you use SHTTP with our hosted MCP server to take advantage of the server at full capacity.

SHTTP (Hosted MCP):

Use the Browserbase hosted MCP server at https://mcp.browserbase.com/mcp. This is the easiest way to get started -- we host the server and provide the LLM costs for Gemini, the best performing model in Stagehand.

For full setup instructions, see the Browserbase MCP documentation.

If your client supports SHTTP:

"mcpServers": { "browserbase": { "type": "http", "url": "https://mcp.browserbase.com/mcp" } } }

If your client doesn't support SHTTP:

"mcpServers": { "browserbase": { "command": "npx", "args": ["mcp-remote", "https://mcp.browserbase.com/mcp"] } } }

STDIO (Self-Hosted):

You can either use our server hosted on NPM or run it completely locally by cloning this repo.

Note: If you want to use a different model you have to add --modelName to the args and provide that respective key as an arg. More info below.

To run via NPM (Recommended)

Go into your MCP Config JSON and add the Browserbase Server:

"mcpServers": { "browserbase": { "command": "npx", "args": ["@browserbasehq/mcp"], "env": { "BROWSERBASE_API_KEY": "", "BROWSERBASE_PROJECT_ID": "", "GEMINI_API_KEY": "" } } } }

That's it! Reload your MCP client and you're ready to go.

To run 100% local:

Option 1: Direct installation

git clone https://github.com/browserbase/mcp-server-browserbase.git

cd mcp-server-browserbase npm install && npm run build

Option 2: Docker

git clone https://github.com/browserbase/mcp-server-browserbase.git

cd mcp-server-browserbase docker build -t mcp-browserbase .

Then in your MCP Config JSON run the server:

Using Direct Installation

"mcpServers": { "browserbase": { "command": "node", "args": ["/path/to/mcp-server-browserbase/cli.js"], "env": { "BROWSERBASE_API_KEY": "", "BROWSERBASE_PROJECT_ID": "", "GEMINI_API_KEY": "" } } } }

Using Docker

"mcpServers": { "browserbase": { "command": "docker", "args": [ "run", "--rm", "-i", "-e", "BROWSERBASE_API_KEY", "-e", "BROWSERBASE_PROJECT_ID", "-e", "GEMINI_API_KEY", "mcp-browserbase" ], "env": { "BROWSERBASE_API_KEY": "", "BROWSERBASE_PROJECT_ID": "", "GEMINI_API_KEY": "" } } } }

Configuration

The Browserbase MCP server accepts the following command-line flags:

Flag	Description
`--proxies`	Enable Browserbase proxies for the session
`--verified`	Enable Browserbase Verified Identity (Only for Scale Plan Users)
`--advancedStealth`	Deprecated alias for `--verified`
`--keepAlive`	Enable Browserbase Keep Alive Session
`--contextId`	Specify a Browserbase Context ID to use
`--persist`	Whether to persist the Browserbase context (default: true)
`--port`	Port to listen on for HTTP/SHTTP transport
`--host`	Host to bind server to (default: localhost, use 0.0.0.0 for all interfaces)
`--browserWidth`	Browser viewport width (default: 1024)
`--browserHeight`	Browser viewport height (default: 768)
`--modelName`	The model to use for Stagehand (default: google/gemini-2.5-flash-lite)
`--modelApiKey`	API key for the custom model provider (required when using custom models)
`--experimental`	Enable experimental features (default: false)

These flags can be passed directly to the CLI or configured in your MCP configuration file.

Note: These flags can only be used with the self-hosted server (npx @browserbasehq/mcp or Docker).

Model Configuration

Stagehand defaults to using Google's Gemini 2.5 Flash Lite model, but you can configure it to use other models like GPT-4o, Claude, or other providers.

Important: When using any custom model (non-default), you must provide your own API key for that model provider using the --modelApiKey flag.

"mcpServers": { "browserbase": { "command": "npx", "args": [ "@browserbasehq/mcp", "--modelName", "anthropic/claude-sonnet-4.5", "--modelApiKey", "your-anthropic-api-key" ], "env": { "BROWSERBASE_API_KEY": "", "BROWSERBASE_PROJECT_ID": "" } } } }

_Note: The model must be supported in Stagehand. Check out the docs here._

License

Licensed under the Apache 2.0 License.

MCP Server Browserbase

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Web & browsersi

Common questions

Alternatives

Browser Use

Chrome DevTools MCP

MCP Server Browser

README from the maker

Browserbase MCP Server

Archived

Tools

How to Setup

SHTTP (Hosted MCP):

STDIO (Self-Hosted):

To run via NPM (Recommended)

To run 100% local:

Option 1: Direct installation

Option 2: Docker

Using Direct Installation

Using Docker

Configuration

Model Configuration

Links

License