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Grok

calc.engineer for Grok

engineer.calc/calc

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

client:Grok transport:streamable-http tools:89

Install calc.engineer in Grok

.mcp.json (in your project root)

{
  "mcpServers": {
    "calc": {
      "type": "http",
      "url": "https://calc.engineer/mcp"
    }
  }
}

Grok Build reads Claude Code's .mcp.json and Claude Desktop's config unchanged, so a server you have already set up there needs nothing new. The Grok web app and X integration do not take custom servers. Grok docs

What Grok can do once it is connected

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