Scrapybara (Virtual Ubuntu) MCP server

This MCP server allows interaction with virtual Ubuntu desktops through clients like Claude Desktop, Cursor, and Windsurf. It enables browsing the web, running code, and other actions by connecting to the Scrapybara platform.

Prerequisites

• Node.js 18+
• pnpm
• Scrapybara API key (get one at scrapybara.com)

Installation

Step 1: Clone the repository

git clone https://github.com/scrapybara/scrapybara-mcp.git
cd scrapybara-mcp

Step 2: Install dependencies

pnpm install

Step 3: Build the project

pnpm build

Step 4: Configure your MCP client

Add the following to your MCP client configuration:

{
  "mcpServers": {
    "scrapybara-mcp": {
      "command": "node",
      "args": ["path/to/scrapybara-mcp/dist/index.js"],
      "env": {
        "SCRAPYBARA_API_KEY": "<YOUR_SCRAPYBARA_API_KEY>",
        "ACT_MODEL": "<YOUR_ACT_MODEL>", // "anthropic" or "openai"
        "AUTH_STATE_ID": "<YOUR_AUTH_STATE_ID>" // Optional, for authenticating the browser
      }
    }
  }
}

Step 5: Restart your MCP client

After saving the configuration, restart your MCP client to apply the changes.

Available Tools

start_instance

Starts a Scrapybara Ubuntu instance that serves as a desktop sandbox for web access or running code. After starting an instance, make sure to share the stream URL with users so they can watch the instance in real time.

get_instances

Retrieves a list of all currently running Scrapybara instances.

stop_instance

Terminates a running Scrapybara instance.

bash

Executes a bash command within a Scrapybara instance.

act

Enables an agent to take action on a Scrapybara instance. The agent can control the instance using mouse/keyboard inputs and bash commands.

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.