Math MCP server

The Math-MCP server provides basic mathematical and statistical functions for Large Language Models (LLMs), enabling them to perform accurate numerical calculations through a simple API. It serves as a computational tool that enhances an LLM's ability to work with numbers.

Installation Options

Via Smithery

The quickest way to install Math-MCP for Claude Desktop is through Smithery:

npx -y @smithery/cli install @EthanHenrickson/math-mcp --client claude

Manual Installation

To install manually:

1. Clone the repository to your local machine
2. Add the server to your MCP configuration file:

"math": {
  "command": "node",
  "args": ["PATH\\TO\\PROJECT\\math-mcp\\build\\index.js"]
}

Be sure to replace PATH\\TO\\PROJECT with the actual path where you cloned the repository.

Available Functions

The Math-MCP server provides various mathematical operations that your LLM can access:

Basic Arithmetic

• add: Adds two numbers together

  • Parameters: firstNumber, secondNumber

• subtract: Subtracts the second number from the first

  • Parameters: minuend (the number to subtract from), subtrahend (the number being subtracted)

• multiply: Multiplies two numbers together

  • Parameters: firstFactor, secondFactor

• division: Divides the first number by the second

  • Parameters: numerator, denominator

Statistical Functions

• sum: Adds any number of numbers together

  • Parameters: numbers (array of numbers to sum)

• average: Calculates the arithmetic mean of a list of numbers

  • Parameters: numbers (array of numbers)

• min: Finds the minimum value from a list of numbers

  • Parameters: numbers (array of numbers)

• max: Finds the maximum value from a list of numbers

  • Parameters: numbers (array of numbers)

Rounding Functions

• floor: Rounds a number down to the nearest integer

  • Parameters: value (the number to round down)

• ceiling: Rounds a number up to the nearest integer

  • Parameters: value (the number to round up)

• round: Rounds a number to the nearest integer

  • Parameters: value (the number to round)

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 "math" '{"command":"node","args":["PATH\\TO\\PROJECT\\math-mcp\\build\\index.js"]}'

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": {
        "math": {
            "command": "node",
            "args": [
                "PATH\\TO\\PROJECT\\math-mcp\\build\\index.js"
            ]
        }
    }
}

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": {
        "math": {
            "command": "node",
            "args": [
                "PATH\\TO\\PROJECT\\math-mcp\\build\\index.js"
            ]
        }
    }
}

3. Restart Claude Desktop for the changes to take effect