Electrical / runnable MCP tool

Run the Existing-Load Panel Check (NEC 220.87) in your AI assistant

Through the free Intry MCP server, ChatGPT, Claude, or Cursor runs this exact calculator and hands back a verdict and the cited source, not a guess. Tool name: load_can_panel_handle.

What it runs: Answer 'can my existing panel handle a new load (EV charger, heat pump, ...)?' using the NEC 220.87 existing-dwelling method: 125% of the measured 12-month peak demand plus the new load, compared to the service rating. Returns pass/fail, the total, and the remaining margin.

Ask your assistant

Once Intry is connected, type a question like these. The assistant recognizes the job and calls the load_can_panel_handle tool, then answers with the number, the verdict, and the citation.

200 A service, utility peak demand 110 A. Can it take a 48 A EV charger?
Will a 150 A panel handle a new heat pump if the measured peak is 90 A?

Inputs

FieldRequiredWhat it is
serviceAmpsyesService / main breaker rating (e.g. 200).
voltageoptionalService voltage (default 240).
demandSourceoptionalSource of the peak-demand figure (default utility).
demandValueyesExisting peak demand value.
demandUnitoptionalUnit of demandValue (default a).
newLoadValueyesNew load to add.
newLoadUnitoptionalUnit of newLoadValue (default a).

Add Intry to Claude (free)

One paste and Claude can run this tool and every other Intry calculator. Free on every plan, works on your phone.

  1. Open Claude and go to Settings, then Connectors (works on the phone app too).
  2. Tap Add custom connector and paste the Intry link below.
  3. Tap Add. Done. Now just ask Claude any wire, load, conduit, or refrigerant question.
Open Claude connector setup
https://www.intrysys.com/api/mcp

Free inside Claude, on every plan (including the free one) and on your phone. No login on our end, no API key.

Using ChatGPT, Cursor, or a dev tool? See the developer setup on the main page. The endpoint is https://www.intrysys.com/api/mcp.

The tool returns its governing citation with every call (for example the NEC 2023 section or the refrigerant pressure-temperature data). Numbers are computed by the same locked engine the interactive calculator uses, golden-verified in CI and gated on every deploy.

Also on Intry