General Tools

intrysys.com

Provides electrical code calculations for wire sizing, voltage drop, conduit fill, and box fill.

1 endpoint18 known toolsFirst detected August 4, 2026Last detected August 4, 2026

ENDPOINT 1

https://www.intrysys.com/api/mcp

No auth detected

MCP server metadata

Name: intry
Version: 1.0.0

Capabilities

tools

Server instructions

Free, code-accurate field calculators for the trades (HVAC + electrical). Every result carries a structured readout and the cited NEC 2023 section, manufacturer data, industry standard, federal rule, or bend geometry it was computed from, plus a verdict where the reading calls for one. Each tool answers one reading completely; the Intry app keeps a whole job's readings as one job, and one tap ships it to the user's AI for the sequenced next steps: https://www.intrysys.com/app?ref=mcp

Known tools 18

voltage_drop

Compute voltage drop for a copper or aluminum branch/feeder run using the NEC K-factor method (VD = 2·K·I·L / CM, K=12.9 Cu / 21.2 Al).

Potential side effects

wire_size

Size a conductor for a load per NEC 310.16 with temperature correction (310.15(B)(1)), conduit-fill bundling (310.15(C)(1)), the 110.14(C) terminal cap, the 240.4(D) small-conductor limit, and the matching EGC (250.122).

Potential side effects

ev_charger

Size a Level 2 EV charger circuit per NEC Article 625: conductor and breaker at 125% continuous, EGC, GFCI requirement, receptacle vs hardwire, and a rule-of-thumb panel-capacity check.

Inferred read-only

conduit_fill

Check conduit fill compliance per NEC Chapter 9 (53% one wire, 31% two, 40% three or more; 60% for a nipple ≤24").

Inferred read-only

box_fill

Compute junction/device box fill per NEC 314.16: conductor volume allowances, the device yoke (2×), clamps (1×), grounds (1×), and support fittings.

Inferred read-only

superheat_subcooling

Diagnose refrigerant charge from gauge readings: superheat = suction line temp minus saturation temp at suction pressure; subcooling = saturation temp at liquid pressure minus liquid line temp.

Potential side effects

mca_mocp

From an HVAC nameplate MCA and MOCP (or from compressor RLA + fan FLA in RLA mode), return the minimum wire size (NEC 310.16, copper and aluminum), the breaker (largest standard 240.6(A) rating not exceeding MOCP per 440.22), the ground (250.122), and voltage drop.

Potential side effects

line_set

Size the liquid and suction line set for R-454B, R-32, or R-410A by tonnage and length, and return a REUSE / FLUSH & REUSE / REPLACE verdict for an existing R-410A (or R-22) set, with the per-foot charge adjustment.

Potential side effects

load_can_panel_handle

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.

Inferred read-only

conduit_offset

Marks and shrink for an EMT offset bend: distance between bends = offset depth × multiplier (1/sin θ: 10°=6, 22.5°=2.6, 30°=2, 45°=1.4, 60°=1.2), plus the run shrink.

Inferred read-only

saddle_bend

Marks and shrink for an EMT saddle bend.

Inferred read-only

water_heater_circuit

Size the branch circuit for an electric or heat-pump (hybrid) water heater per NEC 422.13 (a fixed storage water heater 120 gal or less is a continuous load, sized at 125%): conductor (310.16), breaker (240.6(A) with the 240.4(D) small-conductor limit), and EGC (250.122).

Inferred read-only

induction_range_circuit

Size the branch circuit for a 120V plug-in (battery-buffered) induction range or cooktop from its WALL / CHARGE draw (NEVER the 5-10 kW induction burner peaks, which are battery-fed): conductor (310.16), breaker (240.6(A) with the 240.4(D) small-conductor limit), and EGC (250.122), given both non-continuous and continuous (>=3h recharge, 125% per 210.20(A)) branches.

Potential side effects

max_ev_charger

Answer 'what is the BIGGEST EV charger I can install without a panel upgrade?' Inverts the NEC 220.87 existing-load method: from the service size and the measured 12-month peak demand it returns the largest standard EVSE output that fits (the added charger enters the 220.87 service check at 100% of its 220.57 value, so headroom / voltage, floored to a standard rating; the 125% continuous factor sizes only its branch) plus the branch wire/breaker/ground.

Inferred read-only

solar_backfeed_breaker

Answer 'how big a solar/PV backfeed breaker can this panel take?' using the NEC 705.12(B)(2) 120% rule for a busbar supplied from opposite ends: the backfeed breaker is capped at 120% of the busbar ampacity minus the main breaker, rounded DOWN to a standard 240.6(A) size (a raw 55 A allowance is not a real breaker, so it becomes 50 A).

Inferred read-only

cold_climate_hp_capacity

For a specific cold-climate heat pump model, return its MAX heating capacity at any outdoor temperature (linear interpolation of the printed 47/17/5F rated points, clamped at the lowest rated row, never extrapolated colder), the maintained-% at 5F against BOTH denominators (MAX@5 / rated@47 and MAX@5 / MAX@47, each with its source BTU numbers), the COP at MAX at 5F, and, when a design heat load and design outdoor temperature are supplied, the balance point and backup heat as a READOUT.

Inferred read-only

a2l_charge_limit

The maximum A2L refrigerant charge (R-454B, R-32, and 6 more) for a room, or the minimum room area for a given charge, per UL 60335-2-40 4th ed Annex GG and ASHRAE 15.2-2022.

Potential side effects

outdoor_hvac_gfci

Decide whether an outdoor outlet at a DWELLING needs GFCI protection under NEC 210.8(F), keyed to the jurisdiction's own amendments.

Inferred read-only

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.intry]
url = "https://www.intrysys.com/api/mcp"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "intry": {
      "type": "http",
      "url": "https://www.intrysys.com/api/mcp"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: intry
Remote MCP URL: https://www.intrysys.com/api/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "intry": {
      "url": "https://www.intrysys.com/api/mcp"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "intry": {
      "type": "http",
      "url": "https://www.intrysys.com/api/mcp"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "intry",
  "transport": "streamable-http",
  "url": "https://www.intrysys.com/api/mcp"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

Trust Data Available

BuiltWith Trust API v2 evidence for intrysys.com was fetched 2026-08-23T20:58:33.772Z.

Trust status Neutral

intrysys.com is assessed as Neutral: No suspicious signals found, but no strong positive signal either

Indexed

Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.