Deno Playwright MCP server

This MCP server provides browser automation capabilities using Playwright, enabling Large Language Models (LLMs) to interact with web pages, take screenshots, and execute JavaScript in a real browser environment. It's built with Deno 2, which allows for compiling a standalone binary without runtime dependencies.

Building the Server

You can build an executable binary for several platforms using the following commands:

deno task build-mac
deno task build-linux-x86_64
deno task build-linux-ARM64
deno task build-windows-x86_64

Note that while all build options are available, only the macOS binary build has been thoroughly tested.

Setting Up the Server

To use the Playwright MCP server with Claude, you need to update your Claude Desktop configuration file to point to the binary:

1. Locate your Claude Desktop configuration file at:

   ~/Library/Application Support/Claude/claude_desktop_config.json
   

2. Edit the configuration file to include the MCP server information:

   {
     "mcpServers": {
       "playwright": {
         "command": "/path/to/deno2-playwright-mcp-server/playwright-server"
       }
     }
   }
   

3. Replace /path/to/deno2-playwright-mcp-server/playwright-server with the actual path to the binary you built.

Once configured, Claude will be able to use the Playwright server to interact with web browsers when needed.

How to add this MCP server to 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 > MCP and click "Add new global MCP server".

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

{
    "mcpServers": {
        "cursor-rules-mcp": {
            "command": "npx",
            "args": [
                "-y",
                "cursor-rules-mcp"
            ]
        }
    }
}

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 explictly ask the agent to use the tool by mentioning the tool name and describing what the function does.