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Calculator MCP Server

by TechSuvam
GitHub
Python
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Calculator MCP Server

A Model Context Protocol (MCP) server that provides calculator tools for mathematical operations.

Features

The calculator server provides the following tools:

  • add: Add two or more numbers together

  • subtract: Subtract numbers (subtracts all subsequent numbers from the first)

  • multiply: Multiply two or more numbers together

  • divide: Divide numbers (divides first number by all subsequent numbers)

  • power: Raise a number to a power

  • sqrt: Calculate the square root of a number

  • evaluate: Evaluate a mathematical expression safely (supports basic math operations and functions)

Installation

  1. Install the required dependencies:

pip install -r requirements.txt

Or install directly:

pip install mcp

Usage

Run the server:

python calculator_server.py

The server communicates via stdio and follows the MCP protocol.

Configuration

To use this server with an MCP client, add the following to your MCP client configuration:

{ "mcpServers": { "calculator": { "command": "python", "args": ["/path/to/calculator_server.py"], "transport": "stdio" } } }

Or if you're in the same directory:

{ "mcpServers": { "calculator": { "command": "python", "args": ["calculator_server.py"], "transport": "stdio" } } }

Example Tools

Add

{ "name": "add", "arguments": { "numbers": [1, 2, 3, 4] } }

Result: 10

Subtract

{ "name": "subtract", "arguments": { "numbers": [100, 20, 5] } }

Result: 75

Multiply

{ "name": "multiply", "arguments": { "numbers": [2, 3, 4] } }

Result: 24

Divide

{ "name": "divide", "arguments": { "numbers": [100, 5, 2] } }

Result: 10.0

Power

{ "name": "power", "arguments": { "base": 2, "exponent": 8 } }

Result: 256

Square Root

{ "name": "sqrt", "arguments": { "number": 16 } }

Result: 4.0

Evaluate Expression

{ "name": "evaluate", "arguments": { "expression": "2 + 2 * 3" } }

Result: 8

The evaluate tool also supports mathematical functions like sin, cos, tan, sqrt, log, exp, pi, e, etc.

Safety

The evaluate tool uses Python's compile() and eval() functions with a restricted namespace for safety. Only basic mathematical operations and functions are allowed.

License

This project is provided as-is for use with the Model Context Protocol.

This server cannot be installed

-
security - not tested
F
license - not found
-
quality - not tested

How are these scores calculated?

remote-capable server

The server can be hosted and run remotely because it primarily relies on remote services or has no dependency on the local environment.

Provides mathematical operation tools including basic arithmetic (add, subtract, multiply, divide), power and square root calculations, and safe evaluation of mathematical expressions.

  1. Features
    1. Installation
      1. Usage
        1. Configuration
          1. Example Tools
            1. Add
            2. Subtract
            3. Multiply
            4. Divide
            5. Power
            6. Square Root
            7. Evaluate Expression
          2. Safety
            1. License

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