Calculator MCP server
online · 100% uptimeEvaluate, simplify, and differentiate mathematical expressions.
not scanned yet
2 stars594 downloads/wk
Reviews
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If you have run it, two minutes of your experience saves the next person an afternoon.
Calculator tools
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How Calculator compares
Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.
- Safety score
- 93/100
- higher than 96% of 48,255 servers
- Uptime
- 100%
- of our recent checks; the typical remote server answers 100%
- Response time
- 231 ms
- faster than 58% of 30,031 servers
- GitHub stars
- 2
- more than 75% of 28,688 servers
- Downloads a week
- 594
- more than 90% of 12,191 servers with a package
Release history: 6 versions in the registry since 2026-09-13, latest 2026-10-28, typically one every 6 days.
Install Calculator in Claude Code, Cursor or VS Code
claude mcp add --transport http calculator-mcp-server https://calculator.caseyjhand.com/mcp
What the publisher says
From the Calculator repository's README, as published. We do not edit it. Read it on GitHub
@cyanheads/calculator-mcp-server Evaluate, simplify, and differentiate mathematical expressions via MCP. STDIO or Streamable HTTP. 1 Tool • 1 Resource
Public Hosted Server: https://calculator.caseyjhand.com/mcp
Overview
Calculator powered by math.js. Verify numeric results, simplify algebraic expressions, and compute symbolic derivatives through one tool. Runs as a stdio process, a local Streamable HTTP server, or the public hosted endpoint above.
Tools
Resources
Capability reference
calculate tool
Shortened. The full README is on GitHub.
Nothing above is checked by us. What we check is on the safety report.
Calculator: common questions
- Is Calculator MCP server safe?
- Yes, by our scan: it is graded A (93/100). Read the Calculator safety report
- How do I install Calculator?
- It runs remotely at calculator.caseyjhand.com. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
- Does Calculator need an API key?
- No secret keys are declared. It reads 13 settings from the environment.
- Is Calculator maintained?
- The last commit was 40 days ago (2026-09-24). The latest release is v0.5.3.
- Is Calculator up?
- 100% of our last 28 checks got an answer. We check remote servers about four times a day.
- How does Calculator compare with other MCP servers?
- safety score 93/100 (higher than 96% of 48,255 servers); uptime 100% (of our recent checks; the typical remote server answers 100%); response time 231 ms (faster than 58% of 30,031 servers). Full comparison.