Calculator MCP Server: Install & Setup

Install Calculator in Claude Code

Claude Code

claude mcp add tech-sushant-calculator -- npx -y @tech-sushant/calculator-mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "tech-sushant-calculator": {
      "command": "npx",
      "args": [
        "-y",
        "@tech-sushant/calculator-mcp"
      ]
    }
  }
}

Frequently asked questions

What does the Calculator MCP server do?

A simple Model Context Protocol calculator server

Is the Calculator MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does Calculator run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add Calculator to Claude Code?

Run: claude mcp add tech-sushant-calculator -- npx -y @tech-sushant/calculator-mcp

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