E2B (TS) MCP server

This server by E2B allows you to run code securely in a sandbox through the Model Context Protocol (MCP), enabling tools like Claude to execute code safely in an isolated environment.

Installation

You can install and use the E2B MCP server with Claude Desktop by following these steps:

Setup Configuration

Add the server configuration to your Claude Desktop config file:

• MacOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%/Claude/claude_desktop_config.json

Create or edit this file with the following configuration:

{
  "mcpServers": {
    "e2b-server": {
      "command": "npx",
      "args": ["-y", "@e2b/mcp-server"],
      "env": { "E2B_API_KEY": "${e2bApiKey}" }
    }
  }
}

Getting an E2B API Key

To use the server, you'll need an E2B API key. You can obtain one by signing up on the E2B platform and replacing ${e2bApiKey} with your actual API key in the configuration.

Usage

Once configured, Claude Desktop will automatically use the E2B MCP server when executing code, without requiring any additional setup.

Troubleshooting

If you encounter issues with the server, you can use the MCP Inspector for debugging:

npx @modelcontextprotocol/inspector

The Inspector will provide a URL to access debugging tools in your browser, allowing you to monitor the communication between Claude and the MCP server.

Advanced Configuration

You can customize the server behavior by setting additional environment variables in the configuration file. For example:

{
  "mcpServers": {
    "e2b-server": {
      "command": "npx",
      "args": ["-y", "@e2b/mcp-server"],
      "env": { 
        "E2B_API_KEY": "${e2bApiKey}",
        "DEBUG": "true"
      }
    }
  }
}

This enables debug mode for more verbose logging and troubleshooting information.

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.