Mcp Browser Automation

What is Algonius Browser?

The ### Algonius Browser is an open-source browser automation server designed to expose browser control tools to external AI systems via the Model Context Protocol (MCP). This innovative tool allows developers to integrate browser functionalities into their applications, enabling seamless automation and control of web interactions.

Features of Algonius Browser

Open Source: Algonius Browser is fully open-source, allowing developers to access, modify, and contribute to its codebase.
MCP Integration: It utilizes the Model Context Protocol to facilitate communication between AI systems and browser control tools.
Secure: The browser is designed with security in mind, ensuring that automation tasks are performed safely and efficiently.
User-Friendly Interface: The browser provides a straightforward interface for developers to implement automation tasks without extensive setup.
Community Support: Being an open-source project, it has a growing community of contributors and users who provide support and enhancements.

How to Use Algonius Browser

Installation: Begin by cloning the repository from GitHub and following the installation instructions provided in the documentation.
Setup: Configure the browser settings according to your requirements. This may include setting up the Model Context Protocol for communication with AI systems.
Automation Tasks: Utilize the provided APIs to create automation scripts that can control browser actions such as navigation, form submission, and data extraction.
Testing: Run your automation scripts in a controlled environment to ensure they function as expected before deploying them in a production setting.
Contribute: If you have improvements or features to add, consider contributing to the project by submitting pull requests on GitHub.

Frequently Asked Questions

Q1: Is Algonius Browser free to use?

A1: Yes, Algonius Browser is open-source and free to use under the Apache-2.0 license.

Q2: Can I integrate Algonius Browser with existing AI systems?

A2: Absolutely! The browser is designed to work with external AI systems via the Model Context Protocol, making integration straightforward.

Q3: Where can I find the documentation for Algonius Browser?

A3: Documentation is available in the repository on GitHub, which includes installation instructions, API references, and usage examples.

Q4: How can I report issues or request features?

A4: You can report issues or request features by opening an issue in the GitHub repository. The community actively monitors and responds to feedback.

Q5: Is there a community for Algonius Browser users?

A5: Yes, there is an active community of users and contributors on GitHub, where you can ask questions, share experiences, and collaborate on projects.

<div align="center"> <img src="https://github.com/user-attachments/assets/1b2b1bc0-c7b4-4a45-83f5-4a6161831535" width="600" alt="Algonius Browser Banner" /> </div> <h1 align="center">MCP Browser Automation</h1>

🌐 Overview

Algonius Browser is an open-source MCP (Model Context Protocol) server that provides browser automation capabilities to external AI systems. It exposes a comprehensive set of browser control tools through the MCP protocol, enabling AI assistants and other tools to navigate websites, interact with DOM elements, and extract web content programmatically.

🎯 Key Features

MCP Protocol Integration: Standard interface for AI systems to control browser automation
Chrome Extension: Background service worker that handles browser interactions
Native Messaging: Go-based MCP host that bridges Chrome extension with external tools
Comprehensive Tool Set: 5 browser automation tools + 2 MCP resources
Type Safety: Full TypeScript implementation with structured error handling
Testing Suite: Comprehensive integration tests for all functionality

🛠️ Available MCP Tools

Navigation & Tabs

navigate_to: Navigate to URLs with configurable timeout handling
manage_tabs: Create, close, and switch between browser tabs

DOM Interaction

get_dom_extra_elements: Advanced DOM element extraction with pagination and filtering
click_element: Click DOM elements using CSS selectors or text matching
set_value: Set values in input fields, textareas, and form elements
scroll_page: Scroll pages up or down with customizable distances

📋 Available MCP Resources

Browser State Resources

browser://current/state: Complete current browser state in AI-friendly Markdown format
- Active tab information
- All browser tabs with URLs, titles, and status
- Real-time state updates via resource notifications
browser://dom/state: Current DOM state overview in Markdown format
- Page metadata (URL, title, scroll position)
- First 20 interactive elements
- Total element count with "more available" indicators
- Simplified DOM structure
- Auto-updates when page changes

🚀 Quick Start

1. Install Chrome Extension

From Chrome Web Store (Recommended):

Click the "Add to Chrome" button on the Chrome Web Store page
Confirm the installation when prompted
The extension will be automatically installed and ready to use

From Source (Development):

### Clone and build
git clone https://github.com/algonius/algonius-browser.git
cd algonius-browser
pnpm install
pnpm build

### Load in Chrome
### 1. Open chrome://extensions/
### 2. Enable "Developer mode"
### 3. Click "Load unpacked"
### 4. Select the 'dist' folder

⚠️ Important: The Chrome extension requires the MCP Host backend service to function properly. Please continue with step 2 to complete the installation.

2. Install MCP Host

One-Click Installation (Recommended):

Linux/macOS:

curl -fsSL https://raw.githubusercontent.com/algonius/algonius-browser/master/install-mcp-host.sh | bash

Windows (PowerShell):

iwr -useb https://raw.githubusercontent.com/algonius/algonius-browser/master/install-mcp-host.ps1 | iex

Manual Installation:

### Download latest release
wget https://github.com/algonius/algonius-browser/releases/latest/download/mcp-host-linux-x86_64.tar.gz

### Extract and install
tar -xzf mcp-host-linux-x86_64.tar.gz
cd mcp-host-linux-x86_64
./install.sh

3. Verify Installation

### Test the MCP host installation
mcp-host-go --version

### The MCP host will be automatically started when needed by the Chrome extension
### You should see the extension icon in your Chrome toolbar

✅ Success: Both components are now installed! The Chrome extension will automatically communicate with the MCP Host when browser automation is requested.

🔧 Integration Examples

Using with AI Assistants

Once installed, AI systems can use the browser automation tools and resources through the MCP protocol:

Tool Usage:

{
  "method": "tools/call",
  "params": {
    "name": "navigate_to",
    "arguments": {
      "url": "https://example.com",
      "timeout": 30000
    }
  }
}

Resource Access:

{
  "method": "resources/read",
  "params": {
    "uri": "browser://current/state"
  }
}

Common Workflows

Web Scraping:

navigate_to → Navigate to target site
Read browser://dom/state → Get page overview
get_dom_extra_elements → Get specific elements with pagination
click_element → Interact with elements
Read browser://dom/state → Extract updated content

Form Automation:

navigate_to → Go to form page
Read browser://dom/state → Identify form elements
set_value → Fill form fields
click_element → Submit form
Read browser://current/state → Verify completion

Multi-Tab Management:

Read browser://current/state → Check current tabs
manage_tabs → Create/switch tabs
navigate_to → Load content in each tab
Read browser://current/state → Monitor all tab states

Page Navigation with Scrolling:

navigate_to → Go to target page
Read browser://dom/state → Get initial page state
scroll_page → Scroll to load more content
get_dom_extra_elements → Extract newly loaded elements

🏗️ Architecture

External AI System
       ↓ (MCP Protocol)
   MCP Host (Go)
       ↓ (Native Messaging)
Chrome Extension
       ↓ (Chrome APIs)
    Browser Tabs

Components

MCP Host: Go-based native messaging host that implements MCP protocol
Chrome Extension: Background service worker with tool handlers
Content Scripts: DOM interaction and data extraction utilities
Integration Tests: Comprehensive test suite for all tools

🧪 Development

Build from Source

Prerequisites:

Node.js 22.12.0+
pnpm 9.15.1+
Go 1.21+ (for MCP host)

Build Extension:

pnpm install
pnpm build

Build MCP Host:

cd mcp-host-go
make build

Run Tests:

### Extension tests
pnpm test

### MCP host tests  
cd mcp-host-go
make test

Development Mode

### Extension development
pnpm dev

### MCP host development
cd mcp-host-go
make dev

📊 Supported Platforms

MCP Host:

Linux x86_64
macOS Intel (x86_64) and Apple Silicon (arm64)
Windows x86_64

Chrome Extension:

Chrome/Chromium 88+
Microsoft Edge 88+

📚 Documentation

Detailed documentation available in the docs/ directory:

🤝 Contributing

We welcome contributions! Check out our CONTRIBUTING.md for guidelines.

Ways to contribute:

Report bugs and feature requests
Submit pull requests for improvements
Add integration tests
Improve documentation
Share usage examples

🔒 Security

For security vulnerabilities, please create a GitHub Security Advisory rather than opening a public issue.

💬 Community

Discord - Chat with developers and users
GitHub Discussions - Share ideas and ask questions

📄 License

This project is licensed under the Apache License 2.0 - see the LICENSE file for details.

👏 Acknowledgments

Built with these excellent open-source projects:

Made with ❤️ by the Algonius Browser Team

Give us a star 🌟 if this project helps you build better browser automation!

Overview