calc.engineer MCP Server: Install & Setup

Install calc.engineer in Claude Code

Claude Code

claude mcp add --transport http calc-engineer https://calc.engineer/mcp

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

{
  "mcpServers": {
    "calc-engineer": {
      "url": "https://calc.engineer/mcp"
    }
  }
}

88 free engineering calculators: RF link budgets, LoRa/Meshtastic, PCB, solar, homelab. Keyless.

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

Remote. Hosted by the provider. You connect with a URL, nothing to install.

Run: claude mcp add --transport http calc-engineer https://calc.engineer/mcp

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