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mcp/harbor
Verified official

calc.engineer MCP

v1.0.0

engineer.calc/calc

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

transport:streamable-http
Website

Target client

run in your project directory 

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

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

This listing does not declare its tools. Connect the server and your client will discover them on the handshake.