calculator mcp server for Gemini CLI

io.github.cyanheads/calculator-mcp-server

Evaluate, simplify, and differentiate mathematical expressions.

client:Gemini CLI transport:streamable-http runtime:npm tools:1

Install calculator mcp server in Gemini CLI

~/.gemini/settings.json · windows: %USERPROFILE%\.gemini\settings.json

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

Gemini expands $VAR and ${VAR} inside env values, so a secret can live in your shell rather than this file. Gemini CLI docs