MatrixCalculator.net MCP

A remote Model Context Protocol (MCP) server for exact, step-by-step matrix calculations powered by MatrixCalculator.net.

Remote MCP endpoint

https://mcp.matrixcalculator.net/mcp

Official MCP Registry name

io.github.gamestarry/matrixcalculator-mcp

Current version: 0.1.0

What it does

MatrixCalculator.net MCP gives MCP-compatible AI clients access to six core matrix operations. Results preserve exact fractions and include structured calculation steps that an AI client can present as a short answer or expand into a detailed solution.

Tool	Description
matrix_add	Add two matrices with identical dimensions, with one step per entry.
matrix_subtract	Subtract the second matrix from the first, with one step per entry.
matrix_multiply	Multiply compatible matrices using row-by-column steps.
matrix_determinant	Calculate a determinant with row swaps, elimination steps, diagonal entries, and singularity information.
matrix_inverse	Calculate an inverse with Gauss-Jordan row operations, singularity detection, and verification.
matrix_transpose	Transpose a matrix and return the source position for every result entry.

Exact values

Inputs may be integers, decimals, or fraction strings:

2
0.5
-3
1/2
-7/4

Calculations use exact fraction arithmetic where possible. For example:

1/2 + 1/3 = 5/6

rather than converting the result to an approximate decimal.

Example requests

An MCP-compatible AI client can use the server for requests such as:

Add [[1/2, 2], [3, 4]] and [[1/3, 5], [-1, 6]] and show the steps.

Multiply [[1, 2], [3, 4]] by [[5, 6], [7, 8]].

Find the determinant of [[0, 1/2, 1], [2, 1, 3], [1, 4, 5]] step by step.

Find the inverse of [[0, 2, 1], [1, 1, 0], [2, 3, 4]] and verify the result.

The MCP server returns structured result data and detailed steps. The connected AI client decides how much of that detail to display to the user.

Tool inputs

matrix_add

{
  "matrixA": [["1/2", "2"], ["3", "4"]],
  "matrixB": [["1/3", "5"], ["-1", "6"]]
}

matrix_subtract

{
  "matrixA": [["5/6", "7"], ["2", "10"]],
  "matrixB": [["1/3", "2"], ["-1", "4"]]
}

matrix_multiply

{
  "matrixA": [["1/2", "2"], ["3", "4"]],
  "matrixB": [["3", "1"], ["4", "2"]]
}

matrix_determinant

{
  "matrix": [["0", "1/2", "1"], ["2", "1", "3"], ["1", "4", "5"]]
}

matrix_inverse

{
  "matrix": [["0", "2", "1"], ["1", "1", "0"], ["2", "3", "4"]]
}

matrix_transpose

{
  "matrix": [["1/2", "2", "3"], ["4", "-1", "5"]]
}

Connect

Use the following Streamable HTTP endpoint in any MCP client that supports remote MCP servers:

https://mcp.matrixcalculator.net/mcp

No API key is required for the current public V1 endpoint.

Health check

https://mcp.matrixcalculator.net/health

Local development

Requirements:

• Node.js
• npm
• Cloudflare Wrangler

Clone and install:

git clone https://github.com/gamestarry/matrixcalculator-mcp.git
cd matrixcalculator-mcp
npm install

Run type checking:

npm run typecheck

Start the local Worker:

npm run dev

The local MCP endpoint is normally:

http://127.0.0.1:8787/mcp

Deployment

The production server runs on Cloudflare Workers.

npm run deploy

Production MCP endpoint:

https://mcp.matrixcalculator.net/mcp

MCP Registry

This server is published in the official MCP Registry as:

io.github.gamestarry/matrixcalculator-mcp

Registry metadata is stored in server.json.

Project structure

src/
├─ index.ts
├─ lib/
│  └─ matrix-values.ts
└─ tools/
   ├─ matrix-add.ts
   ├─ matrix-subtract.ts
   ├─ matrix-multiply.ts
   ├─ matrix-determinant.ts
   ├─ matrix-inverse.ts
   └─ matrix-transpose.ts

About MatrixCalculator.net

MatrixCalculator.net provides matrix calculators, learning tools, and step-by-step matrix operations on the web.

This MCP project is maintained separately from the main website so MCP development and deployment do not affect the production calculator or its billing system.