Configurable Puppeteer MCP server for AI agents

The Configurable Puppeteer MCP Server provides browser automation capabilities for Large Language Models (LLMs), allowing them to interact with web pages, take screenshots, and execute JavaScript in a real browser environment. You can customize its behavior using environment variables without modifying the server code.

Installation

You can set up the Configurable Puppeteer MCP Server by adding it to your MCP configuration file. There are several ways to configure it based on your needs.

Basic Setup

Add the following to your MCP configuration:

{
  "mcpServers": {
    "puppeteer": {
      "command": "npx",
      "args": ["-y", "github:afshawnlotfi/mcp-configurable-puppeteer"]
    }
  }
}

You can also specify a particular branch, tag, or commit:

{
  "mcpServers": {
    "puppeteer": {
      "command": "npx",
      "args": ["-y", "github:afshawnlotfi/mcp-configurable-puppeteer#main"]
    }
  }
}

Configuration Options

Customizing Puppeteer Options

You can configure Puppeteer launch options by providing a JSON string in the PUPPETEER_ARGS environment variable.

Using Firefox Instead of Chrome

{
  "mcpServers": {
    "puppeteer": {
      "command": "npx",
      "args": ["-y", "github:afshawnlotfi/mcp-configurable-puppeteer"],
      "env": {
        "PUPPETEER_ARGS": "{\"browser\": \"firefox\"}"
      }
    }
  }
}

Setting Browser Window Size

{
  "mcpServers": {
    "puppeteer": {
      "command": "npx",
      "args": ["-y", "github:afshawnlotfi/mcp-configurable-puppeteer"],
      "env": {
        "PUPPETEER_ARGS": "{\"defaultViewport\": {\"width\": 1280, \"height\": 800}}"
      }
    }
  }
}

Available Tools

The server provides several tools for browser automation:

puppeteer_navigate

Navigate to any URL in the browser.

Input:

url (string): The URL to navigate to

puppeteer_screenshot

Capture screenshots of the entire page or specific elements.

Inputs:

name (string, required): Name for the screenshot
selector (string, optional): CSS selector for element to screenshot
width (number, optional, default: 800): Screenshot width
height (number, optional, default: 600): Screenshot height

puppeteer_click

Click elements on the page.

Input:

selector (string): CSS selector for element to click

puppeteer_hover

Hover over elements on the page.

Input:

selector (string): CSS selector for element to hover

puppeteer_fill

Fill out input fields.

Inputs:

selector (string): CSS selector for input field
value (string): Value to fill

puppeteer_select

Select an option from a dropdown menu.

Inputs:

selector (string): CSS selector for SELECT element
value (string): Value to select

puppeteer_evaluate

Execute JavaScript in the browser console.

Input:

script (string): JavaScript code to execute

Accessing Resources

The server provides access to two types of resources:

Console Logs

Access browser console output in text format:

Resource URI: console://logs
Contains all console messages from the browser

Screenshots

Access PNG images of captured screenshots:

Resource URI: screenshot://<name>
Where <name> is the name specified during capture

How to install this MCP server

For Claude Code

To add this MCP server to Claude Code, run this command in your terminal:

claude mcp add-json "puppeteer" '{"command":"npx","args":["-y","github:afshawnlotfi/mcp-configurable-puppeteer"]}'

See the official Claude Code MCP documentation for more details.

For Cursor

There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json file so that it is available in all of your projects.

If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json file.

Adding an MCP server to Cursor globally

To add a global MCP server go to Cursor Settings > Tools & Integrations and click "New MCP Server".

When you click that button the ~/.cursor/mcp.json file will be opened and you can add your server like this:

{
    "mcpServers": {
        "puppeteer": {
            "command": "npx",
            "args": [
                "-y",
                "github:afshawnlotfi/mcp-configurable-puppeteer"
            ]
        }
    }
}

Adding an MCP server to a project

To add an MCP server to a project you can create a new .cursor/mcp.json file or add it to the existing one. This will look exactly the same as the global MCP server example above.

How to use the MCP server

Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.

The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.

You can also explicitly ask the agent to use the tool by mentioning the tool name and describing what the function does.

For Claude Desktop

To add this MCP server to Claude Desktop:

1. Find your configuration file:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
Windows: %APPDATA%\Claude\claude_desktop_config.json
Linux: ~/.config/Claude/claude_desktop_config.json

2. Add this to your configuration file:

{
    "mcpServers": {
        "puppeteer": {
            "command": "npx",
            "args": [
                "-y",
                "github:afshawnlotfi/mcp-configurable-puppeteer"
            ]
        }
    }
}

3. Restart Claude Desktop for the changes to take effect