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Math-MCP

Math-MCP

by EthanHenrickson
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Math-MCP

A Model Context Protocol (MCP) server that provides basic mathematical, statistical and trigonometric functions to Large Language Models (LLMs). This server enables LLMs to perform accurate numerical calculations through a simple API.

Features

  • Basic arithmetic operations (addition, subtraction, multiplication, division, sum, modulo)

  • Statistical functions (mean, median, mode, min, max)

  • Rounding functions (floor, ceiling, round)

  • Trigonometric functions (sin, cos, tan, and their inverses; degrees/radians conversions)

Related MCP server: Calculator MCP

Installation

Note: Ensure you have Node.js installed on your computer.

Just clone this repository and save it locally somewhere on your computer.

Then add this server to your MCP configuration file:

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

Here is an example for OpenCode

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

Replace PATH\\TO\\PROJECT with the actual path to where you cloned the repository.

Note: This project comes prebuilt, so installation is easy but if you change anything in the code, rebuild the project with npm run build.

Available Functions

The Math-MCP server provides the following mathematical operations:

Arithmetic Operations

Function

Description

Parameters

add

Adds two numbers together

firstNumber: The first addendsecondNumber: The second addend

subtract

Subtracts the second number from the first number

minuend: The number to subtract from (minuend)subtrahend: The number being subtracted (subtrahend)

multiply

Multiplies two numbers together

firstNumber: The first numbersecondNumber: The second number

division

Divides the first number by the second number

numerator: The number being divided (numerator)denominator: The number to divide by (denominator)

sum

Adds any number of numbers together

numbers: Array of numbers to sum

modulo

Divides two numbers and returns the remainder

numerator: The number being divided (numerator)denominator: The number to divide by (denominator)

floor

Rounds a number down to the nearest integer

number: The number to round down

ceiling

Rounds a number up to the nearest integer

number: The number to round up

round

Rounds a number to the nearest integer

number: The number to round

Statistical Operations

Function

Description

Parameters

mean

Calculates the arithmetic mean of a list of numbers

numbers: Array of numbers to find the mean of

median

Calculates the median of a list of numbers

numbers: Array of numbers to find the median of

mode

Finds the most common number in a list of numbers

numbers: Array of numbers to find the mode of

min

Finds the minimum value from a list of numbers

numbers: Array of numbers to find the minimum of

max

Finds the maximum value from a list of numbers

numbers: Array of numbers to find the maximum of

Trigonometric Operations

Function

Description

Parameters

sin

Calculates the sine of a number in radians

number: The number in radians to find the sine of

arcsin

Calculates the arcsine (in radians) of a number

number: The number to find the arcsine of

cos

Calculates the cosine of a number in radians

number: The number in radians to find the cosine of

arccos

Calculates the arccosine (in radians) of a number

number: The number to find the arccosine of

tan

Calculates the tangent of a number in radians

number: The number in radians to find the tangent of

arctan

Calculates the arctangent (in radians) of a number

number: The number to find the arctangent of

radiansToDegrees

Converts a radian value to its equivalent in degrees

number: The number in radians to convert to degrees

degreesToRadians

Converts a degree value to its equivalent in radians

number: The number in degrees to convert to radians

Available Tools

13 tools
addB

Adds two numbers together

Inputs: firstNumber (required), secondNumber (required).

ceilingA

Rounds a number up to the nearest integer

Inputs: number (required).

divisionB

Divides the first number by the second number

Inputs: denominator (required), numerator (required).

floorA

Rounds a number down to the nearest integer

Inputs: number (required).

maxB

Finds the maximum value from a list of numbers

Inputs: numbers (required).

meanA

Calculates the arithmetic mean of a list of numbers

Inputs: numbers (required).

medianB

Calculates the median of a list of numbers

Inputs: numbers (required).

minA

Finds the minimum value from a list of numbers

Inputs: numbers (required).

modeA

Finds the most common number in a list of numbers

Inputs: numbers (required).

multiplyB

Multiplies two numbers together

Inputs: SecondNumber (required), firstNumber (required).

roundB

Rounds a number to the nearest integer

Inputs: number (required).

subtractA

Subtracts the second number from the first number

Inputs: minuend (required), subtrahend (required).

sumB

Adds any number of numbers together

Inputs: numbers (required).

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

Loading tool schema changelog…

    Deploy Server
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    TDQS

    A3.6/5.0

    Scored across 13 tools

    Disambiguation5/5

    Each tool has a clearly distinct mathematical purpose with no ambiguity. For example, 'add' and 'sum' differ in that 'add' handles exactly two numbers while 'sum' handles any number of numbers, and 'ceiling', 'floor', and 'round' are distinct rounding operations. There is no overlap that would cause misselection.

    Naming Consistency5/5

    All tool names follow a consistent pattern of using simple, descriptive verbs or nouns in lowercase (e.g., 'add', 'ceiling', 'division'). There are no deviations in style or convention, making the set highly predictable and readable.

    Tool Count5/5

    With 13 tools, this set is well-scoped for a math server, covering a comprehensive range of basic arithmetic, statistical, and rounding operations. Each tool earns its place without feeling excessive or insufficient for the domain.

    Completeness4/5

    The tool surface is nearly complete for basic math operations, including arithmetic (add, subtract, multiply, division), rounding (ceiling, floor, round), and statistics (mean, median, mode, min, max, sum). A minor gap is the lack of more advanced functions like exponentiation or trigonometry, but core workflows are well-covered.

    Maintenance

    ActivityInactive
    ResponsivenessOutdated data

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