Helper Tools MCP server

The MCP (Model Context Protocol) server provides a suite of system utilities and tools for LLM agents, including IP geolocation, network diagnostics, system monitoring, cryptographic operations, and QR code generation. It enables seamless communication between Claude and other AI assistants and useful system resources.

Installation

Using npm (recommended)

npm install @cyanheads/toolkit-mcp-server

Installing from source

git clone [email protected]:cyanheads/toolkit-mcp-server.git
cd toolkit-mcp-server
npm install
npm run build

Configuration

To add the MCP server to your client settings, include the following configuration:

{
  "mcpServers": {
    "toolkit": {
      "command": "node",
      "args": ["node_modules/@cyanheads/toolkit-mcp-server/build/index.js"],
      "env": {
        "NODE_ENV": "production"
      }
    }
  }
}

Available Tools

Network Operations

The server provides tools for network diagnostics and IP geolocation:

Geolocate an IP Address

const geo = await mcp.use('toolkit-mcp-server', 'geolocate', {
  query: '8.8.8.8'
});

Check Connectivity

const conn = await mcp.use('toolkit-mcp-server', 'checkConnectivity', {
  host: 'example.com',
  port: 443
});

System Operations

Get information about the host system:

System Information

const sysInfo = await mcp.use('toolkit-mcp-server', 'getSystemInfo', {});

Load Average

const load = await mcp.use('toolkit-mcp-server', 'getLoadAverage', {});

Security Operations

Perform cryptographic functions:

Generate Hash

const hash = await mcp.use('toolkit-mcp-server', 'hashData', {
  input: 'test data',
  algorithm: 'sha256'
});

Generate UUID

const uuid = await mcp.use('toolkit-mcp-server', 'generateUUID', {});

Generator Operations

Create QR codes in various formats:

Generate QR Code

const qr = await mcp.use('toolkit-mcp-server', 'generateQRCode', {
  data: 'https://example.com',
  type: 'svg'
});

Tool Categories

Encoding Tools

• Base64 encoding/decoding
• URL encoding/decoding
• HTML encoding/decoding

Network & Geolocation

• IP geolocation with intelligent caching
• Rate limiting (45 requests/minute)

Security Tools

• Cryptographic hash generation (MD5, SHA-1, SHA-256, SHA-512)
• Constant-time hash comparison
• UUID generation

Generator Tools

• QR code generation (terminal output, SVG format, Base64 encoded images)

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.