CM
Calculator MCP Server
io.github.cyanheads/calculator-mcp-server
Evaluate, simplify, and differentiate mathematical expressions.
Yes, your AI can use this right now.Answered a live MCP handshake in 340 ms with no sign-in needed and exposes 1 tools.
Connect it
Settings → Connectors → Add custom connector
URL: https://calculator.caseyjhand.com/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://calculator.caseyjhand.com/mcp{
"mcpServers": {
"calculator-mcp-server": {
"url": "https://calculator.caseyjhand.com/mcp"
}
}
}claude mcp add --transport http calculator-mcp-server https://calculator.caseyjhand.com/mcp{
"servers": {
"calculator-mcp-server": {
"type": "http",
"url": "https://calculator.caseyjhand.com/mcp"
}
}
}{
"mcpServers": {
"calculator-mcp-server": {
"command": "npx",
"args": [
"-y",
"@cyanheads/calculator-mcp-server@0.5.1"
]
}
}
}claude mcp add calculator-mcp-server -- npx -y @cyanheads/calculator-mcp-server@0.5.11 tools, verified live
Pulled straight from the server with tools/list on 2026-10-17.
calculateread-onlyEvaluate math expressions, simplify algebraic expressions, or compute symbolic derivatives. One expression per call. Supports arithmetic, trigonometry, statistics, matrices, complex numbers, units, and combinatorics.
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