Calculator

Verified Integration

Author: @configuring•Category: ServerApplication

GitHub Repository

JSON-RPC 2.0

Protocol Standard

Sub-second

Execution Latency

Active

Operational Status

Client Configuration

— Connect Calculator to Claude Desktop or Cursor in seconds

{
  "mcpServers": {
    "calculator-15": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-calculator-15"
      ],
      "env": {}
    }
  }
}

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows).

Architecture & Capabilities

System Overview

Provides a suite of calculator tools for performing a wide range of mathematical operations.

Indexed Date

7/22/2026

License

Open Source

Protocol Layer

stdio / SSE RPC

Frequently Asked Questions

Architecture and operational details for Calculator

The Calculator tool supports basic arithmetic (add, subtract, multiply, divide), calculating powers and square roots. It can also safely evaluate complex mathematical expressions, including common functions like sin, cos, tan, log, exp, pi, and e.

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