SparkQuote NEC calculators

Connect Remote server

claude mcp add --transport http nec-calculators https://sparkquote.ai/mcp

{
  "mcpServers": {
    "nec-calculators": {
      "url": "https://sparkquote.ai/mcp"
    }
  }
}

{
  "servers": {
    "nec-calculators": {
      "type": "http",
      "url": "https://sparkquote.ai/mcp"
    }
  }
}

Settings > Connectors > Add custom connector
URL: https://sparkquote.ai/mcp

Tools 10 found in our last check

• wire_size

  Minimum conductor size for a circuit: NEC Table 310.16 ampacity at the termination temperature rating, the 240.4(D) small-conductor limits, voltage drop over the run, and the Table 250.122 equipment grounding conductor, increased in proportion under 250.122(B) when voltage drop…

• voltage_drop

  Voltage drop for a given conductor size, current and one-way length, single- or three-phase, from NEC Chapter 9 Table 8 circular mils (VD = 2·K·I·L / CM, or √3 for three-phase).

• watts_to_amps

  Current drawn by a load in watts at a voltage and power factor, single- or three-phase, plus the 125% continuous-load value.

• conduit_fill

  Percent fill and maximum number of THHN/THWN-2 conductors of one size in EMT or PVC Schedule 40, from NEC Chapter 9 Tables 1, 4 and 5.

• box_fill

  Minimum outlet box volume from NEC 314.16(B): conductor, device (2 each), clamp and grounding allowances times the Table 314.16(B) volume for the largest conductor.

• load_calculator

  Dwelling service load by the NEC 220.82 optional method: 3 VA/ft² lighting, small-appliance and laundry circuits, fixed appliances, demand factor, heating or cooling, and the minimum standard service size. Leave an appliance out to count it as 0 VA.

• ohms_law

  Ohm's law and power: give exactly two of voltage, current, resistance and power; the other two are calculated.

• panel_schedule

  Lays circuits out on a 120/240 V single-phase or 208Y/120 V three-phase panel and totals the load per phase with the imbalance.

• bid_calculator

  Electrical bid price from materials, markup, labor hours and rate, job costs, overhead and a target net margin (price = break-even / (1 − margin)).

• nec_ampacity

  Allowable ampacity of one insulated conductor from NEC Table 310.16 (not more than three current-carrying conductors in a raceway or cable, 30°C ambient), before any adjustment or correction factors and before the 240.4(D) small-conductor limits.

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