MCPs › Finance › calc.engineer
88 free engineering calculators: RF link budgets, LoRa/Meshtastic, PCB, solar, homelab. Keyless.
Not monetized yet
Turn calc.engineer’s tool calls into revenue: one disclosed sponsored slot, 70% revenue share, fail-open by design.
Install calc.engineer
For anyone using calc.engineer — no Lulu account neededclaude mcp add --transport http calc-engineer https://calc.engineer/mcp
Real-time weather for any city, built on the lulu-ads widget gallery. First-party, free forever.
View server →FAQ
Run: claude mcp add --transport http calc-engineer https://calc.engineer/mcp
Yes — it’s a remote MCP server, so no local install is needed.
ChatGPT: Settings → Connectors → Advanced → Developer mode → Add connector, then paste https://calc.engineer/mcp.
Claude.ai: Settings → Connectors → Add custom connector, then paste the same URL.
15 out of 100, computed from cross-registry traction signals (installs, stars, registry presence) — never influenced by sponsorship.
Similar servers
Works well together
Your server?
This is for the person who owns calc.engineer — adds Lulu Ads to your own code. Not the install steps above, those are for your users.
Copies a ready prompt: your coding agent installs the lulu-ads SDK, wires the slot, and applies the widget design guide.
or set up manually at getlulu.dev/publishers
Get verified so you can edit the page. Your badge is already live below — no claim needed for that.
Managed hosting with monetization built in — waitlist.
[](https://getlulu.dev/mcps/calc-engineer)