Electrical / runnable MCP tool
Run the Existing-Load Panel Check (NEC 220.87) in your AI assistant
Through the free Intry MCP server, Claude, ChatGPT, or Cursor runs this exact calculator and hands back a verdict and the cited source, not a guess. Tool name: load_can_panel_handle.
Ask your assistant
The one rule that makes it reliable: name Intry in your question. That is what tells Claude to run the load_can_panel_handle tool and answer with the real number, the verdict, and the citation. Leave Intry out and Claude may just guess from memory, which is exactly what you are trying to avoid. Type something like:
Inputs
| Field | Required | What it is |
|---|---|---|
| serviceAmps | yes | Service / main breaker rating (e.g. 200). |
| voltage | optional | Service voltage (default 240). |
| demandSource | optional | Source of the peak-demand figure (default utility). |
| demandValue | yes | Existing peak demand value. |
| demandUnit | optional | Unit of demandValue (default a). |
| newLoadValue | yes | New load to add. |
| newLoadUnit | optional | Unit of newLoadValue (default a). |
| continuous | optional | Optional conservative screen. When true, the new load enters the check at 125% of its rating. Leave false (the default) for the literal NEC 220.87 reading: a new load, including an EV charger at its 220.57 value, is added at 100% here; the 125% continuous factor (NEC 210.20(A)/625.42) sizes the charger's own branch circuit, not this service-adequacy check. A strict 2023-edition AHJ may instead apply 125% to a continuous new load; set continuous:true for that conservative screen. |
Add Intry to Claude
One paste and Claude can run this tool and every other Intry calculator, right from your phone.
- Claude opens with the Intry connector already filled in. Review it and click Add.
- (If a field is blank, paste the link below into the URL field.)
- In any chat, tap + then Connectors and switch Intry on. Then name Intry in your question (“use Intry to…”) so Claude runs the tool instead of guessing.
https://www.intrysys.com/api/mcpNo login, no API key, and it works on every Claude plan, right from your phone.
Using ChatGPT, Cursor, or a dev tool? See the developer setup on the main page. The endpoint is https://www.intrysys.com/api/mcp.
Every answer comes with the cited NEC section, so you can check it or show an inspector. The numbers come from the same calculator we run on intrysys.com, and we re-check every one automatically before anything goes live, so the number Claude hands you matches the code.