Calculator MCP Server

by cyanheads Your server? Claim it

answering

Calculator MCP Server is answering right now. Last checked 1 min ago. 907 installs a week from npm. It exposes 1 tools. Last commit 28 Oct 2026.

Evaluate, simplify, and differentiate mathematical expressions.

Installs per day peak 357 · avg 54 · +592% w/w

a month agotoday

Uptime history 91 days of history · worst day 0%

91 days agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

592 ms

Response time

average over 24h

907

Installs / week

npm and PyPI

What changed 9

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 22 August 2026. No other catalogue keeps this.

28 Oct a tool changed version

25 Oct a tool changed version

8 Oct a tool changed version

25 Sep a tool changed the parameters it asks for calculate

25 Sep a tool changed version

19 Sep a tool changed version

13 Sep a tool changed version

22 Aug a tool changed the parameters it asks for calculate

22 Aug a tool changed version

Nothing serious here today

Today is the operative word: we check Calculator MCP Server every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 1 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add calculator-mcp-server --transport http https://calculator.caseyjhand.com/mcp

Settings → Connectors → Add custom connector, then paste this address

https://calculator.caseyjhand.com/mcp

~/.codex/config.toml

[mcp_servers.calculator-mcp-server]
url = "https://calculator.caseyjhand.com/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "calculator-mcp-server": {
      "url": "https://calculator.caseyjhand.com/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "calculator-mcp-server": {
      "type": "http",
      "url": "https://calculator.caseyjhand.com/mcp"
    }
  }
}

Available tools 1

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

calculate

calculate

Evaluate math expressions, simplify algebraic expressions, or compute symbolic derivatives. One expression per call. Supports arithmetic, trigonometry, statistics, matrices, complex numbers, units, and combinatorics.

Endpoints

URL	Transport	State	Latency	Checked
https://calculator.caseyjhand.com/mcp	streamable-http	answering	530 ms	1 min ago

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Calculator MCP Server — questions

Answers built from our own checks of this server.

What can Calculator MCP Server do?

It exposes 1 tools, read directly from the server on our last check. Among them: calculate. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Calculator MCP Server working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 592 ms. The bar chart above shows every period we have measured.

How do I connect Calculator MCP Server?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Calculator MCP Server need an API key?

No. Calculator MCP Server completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 1 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Calculator MCP Server?

It answers our handshake in 592 ms on average, which is faster than 19% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.

How many people use Calculator MCP Server?

The npm package @cyanheads/calculator-mcp-server was installed 907 times in the last week. Week over week that is +592%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Calculator MCP Server open source?

The code is open source: it is published under the Apache-2.0 licence, written in TypeScript, 3 stars on GitHub and 3 open issues. The licence covers the code in the repository, not the hosted service at calculator.caseyjhand.com, which runs on its operator's own terms.