What is Puppeteer With Authentication

Puppeteer-with-authentication is a Model Context Protocol server that leverages Puppeteer for browser automation. It allows large language models (LLMs) to interact with web pages, take screenshots, and execute JavaScript in a real browser environment.

Use cases

Use cases include automating the testing of web applications, capturing visual content from websites, filling out forms automatically, and executing scripts in the browser for data manipulation.

How to use

To use puppeteer-with-authentication, you can utilize various tools provided by the server, such as puppeteer_navigate for navigating URLs, puppeteer_screenshot for capturing screenshots, and puppeteer_fill for filling out forms. Each tool requires specific inputs, such as CSS selectors and values.

Key features

Key features include browser automation, console log monitoring, screenshot capabilities, JavaScript execution, and basic web interactions like navigation, clicking, and form filling.

Where to use

Puppeteer-with-authentication can be used in fields such as web scraping, automated testing, data extraction, and any scenario requiring interaction with web pages programmatically.

Puppeteer

A Model Context Protocol server that provides browser automation capabilities using Puppeteer. This server enables LLMs to interact with web pages, take screenshots, and execute JavaScript in a real browser environment.

Components

Tools

• puppeteer_navigate

  • Navigate to any URL in the browser
  • Input: url (string)

• 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 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 element with SELECT tag
  • Inputs:
    • selector (string): CSS selector for element to select
    • value (string): Value to select

• puppeteer_evaluate

  • Execute JavaScript in the browser console
  • Input: script (string): JavaScript code to execute

Resources

The server provides access to two types of resources:

1. Console Logs (console://logs)

   • Browser console output in text format
   • Includes all console messages from the browser

2. Screenshots (screenshot://<name>)

   • PNG images of captured screenshots
   • Accessible via the screenshot name specified during capture

Key Features

• Browser automation
• Console log monitoring
• Screenshot capabilities
• JavaScript execution
• Basic web interaction (navigation, clicking, form filling)

Configuration to use Puppeteer Server

Here’s the Claude Desktop configuration to use the Puppeter server:

Docker

NOTE The docker implementation will use headless chromium, where as the NPX version will open a browser window.

{
  "mcpServers": {
    "puppeteer": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "--init",
        "-e",
        "DOCKER_CONTAINER=true",
        "mcp/puppeteer"
      ]
    }
  }
}

NPX

{
  "mcpServers": {
    "puppeteer": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-puppeteer"
      ]
    }
  }
}

Build

Docker build:

docker build -t mcp/puppeteer -f src/puppeteer/Dockerfile .

License

This MCP server is licensed under the MIT License. This means you are free to use, modify, and distribute the software, subject to the terms and conditions of the MIT License. For more details, please see the LICENSE file in the project repository.