Cloudflare Browser Rendering (Playwright) MCP server

The Cloudflare Playwright MCP server enables automated browser interactions through the Model Context Protocol, allowing AI assistants to perform web-based tasks using Cloudflare Workers and Browser Rendering technology.

Installation and Setup

Prerequisites

Before you begin, make sure you have Node.js and npm installed.

Basic Installation

1. Install dependencies:

npm ci

2. Build the project:

cd cloudflare
npm run build

3. Deploy to Cloudflare Workers:

cd cloudflare/example
npx wrangler deploy

After deployment, you'll have a URL for your MCP server that looks like https://[your-deployment-name].workers.dev/sse.

Usage with AI Platforms

Cloudflare AI Playground

The Cloudflare AI Playground provides an easy way to test your MCP server:

1. Navigate to https://playground.ai.cloudflare.com/
2. Set the model to llama-3.3-70b-instruct-fp8-fast
3. In MCP Servers, set URL to https://[my-mcp-url].workers.dev/sse
4. Click Connect
5. Verify the status updates to Connected and lists 14 available tools

You can now interact with the model, asking it to perform web-based tasks such as:

• "Go to cloudflare site"
• "Create a new todo entry"
• "Take a screenshot"

Claude Desktop Integration

To use with Claude Desktop:

1. Open the Claude Desktop configuration file
2. Add the following JSON snippet under the mcpServers section:

{
  "mcpServers": {
    "cloudflare-playwright-mcp": {
      "command": "npx",
      "args": [
        "mcp-remote",
        "https://[my-mcp-url].workers.dev/sse"
      ]
    }
  }
}

3. Save the configuration file and restart Claude Desktop

VS Code Integration

You can add the Playwright MCP server to VS Code:

# For VS Code
code --add-mcp '{"name":"cloudflare-playwright","type":"sse","url":"https://[my-mcp-url].workers.dev/sse"}'

# For VS Code Insiders
code-insiders --add-mcp '{"name":"cloudflare-playwright","type":"sse","url":"https://[my-mcp-url].workers.dev/sse"}'

Available Tools

The MCP server offers two interaction modes:

• Snapshot Mode (default): Uses accessibility snapshots for better performance
• Vision Mode: Uses screenshots for visual-based interactions

Snapshot-based Interactions

These tools use element references from accessibility snapshots:

• browser_snapshot: Capture accessibility snapshot of the current page
• browser_click: Click on a specific element
• browser_drag: Perform drag and drop between elements
• browser_hover: Hover over an element
• browser_type: Type text into an editable element
• browser_select_option: Select options in a dropdown
• browser_take_screenshot: Take a screenshot of the page or element

Vision-based Interactions

These tools use visual coordinates:

• browser_screen_capture: Take a screenshot
• browser_screen_move_mouse: Move mouse to coordinates
• browser_screen_click: Click at specific coordinates
• browser_screen_drag: Drag from one position to another
• browser_screen_type: Type text at current cursor position

Tab Management

• browser_tab_list: List all browser tabs
• browser_tab_new: Open a new tab
• browser_tab_select: Switch to a specific tab
• browser_tab_close: Close the current or specified tab

Navigation

• browser_navigate: Navigate to a specific URL
• browser_navigate_back: Go back to previous page
• browser_navigate_forward: Go forward to next page

Additional Utilities

• browser_press_key: Press a keyboard key
• browser_console_messages: Get console messages
• browser_file_upload: Upload files
• browser_pdf_save: Save the page as PDF
• browser_close: Close the page
• browser_wait: Wait for a specified time
• browser_resize: Resize the browser window
• browser_handle_dialog: Handle dialog boxes

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 "cloudflare-playwright-mcp" '{"command":"npx","args":["mcp-remote","https://[my-mcp-url].workers.dev/sse"]}'

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": {
        "cloudflare-playwright-mcp": {
            "command": "npx",
            "args": [
                "mcp-remote",
                "https://[my-mcp-url].workers.dev/sse"
            ]
        }
    }
}

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": {
        "cloudflare-playwright-mcp": {
            "command": "npx",
            "args": [
                "mcp-remote",
                "https://[my-mcp-url].workers.dev/sse"
            ]
        }
    }
}

3. Restart Claude Desktop for the changes to take effect