General Tools

sparkshift.app

An MCP server providing electrical code calculators for voltage drop, wire sizing, conduit fill, box fill, and dwelling load calculations.

1 endpoint16 known toolsFirst detected September 13, 2026Last detected September 13, 2026

ENDPOINT 1

https://sparkshift.app/mcp

No auth detected

MCP server metadata

Name: sparkshift-electrical-calculators
Version: 2026-05-24

Capabilities

toolsresources

Server instructions

Use SparkShift tools for public electrical calculator questions. Each tool is read-only and returns assumptions, code paths, formulas, caveats, and source URLs. Do not use these tools as stamped engineering, AHJ, or permit approval.

Known tools 16

calculate_voltage_drop

Use for branch circuits, feeders, long runs, copper/aluminum voltage drop, one-way length, single-phase, and three-phase voltage drop questions.

Potential side effects

calculate_wire_size

Use for wire sizing, ampacity derating, continuous load checks, terminal temperature limits, NEC/CEC conductor sizing, and EGC upsizing notes.

Potential side effects

calculate_conduit_fill

Use for NEC/CEC conduit fill questions, conductor counts, mixed conductor sizes, raceway trade sizes, and the short nipple exception.

Potential side effects

calculate_box_fill

Use for device box cubic-inch checks, conductor allowances, grounds, NEC clamps/supports, CEC wire connectors, fixture studs/hickeys, and device/yoke counts.

Inferred read-only

calculate_dwelling_load

Use for residential service sizing, standard and optional dwelling load methods, EV loads, HVAC comparison, ranges, dryers, and future growth.

Inferred read-only

calculate_motor_flc

Use for motor full-load current, conductor sizing at 125 percent of FLC, and inverse-time breaker/OCPD sizing questions.

Inferred read-only

calculate_electrical_formulas

Use for formula questions where the user asks for three-phase kW/kVA, energy cost, Ohm's law-style helper math, or electronics reference calculations.

Inferred read-only

calculate_short_circuit

Use for point-to-point available fault-current screening, conductor run reduction, and interrupting-rating planning.

Inferred read-only

calculate_arc_flash

Use for arc-flash awareness screening with fault current, clearing time, working distance, equipment type, and electrode configuration.

Inferred read-only

calculate_load

Use for simple branch-circuit or equipment connected-load totals before routing to dwelling, commercial, demand, panel schedule, or conductor sizing tools.

Inferred read-only

calculate_field_tools

Use when the user asks for a field workflow calculator that is multiplexed by an action field, such as circuit-breaker, pull-box, short-circuit, demand-load, or cable-tray.

Inferred read-only

calculate_ampacity_tools

Use for ampacity tool actions such as wire-ampacity when the user asks for base ampacity, terminal limits, derating, or load pass/fail.

Potential side effects

calculate_wire_pulling

Use for wire-pulling tension, bend contribution, lubricant recommendations, and sidewall pressure screening.

Inferred read-only

calculate_commercial_load

Use for office/commercial load calculations, lighting, receptacles, fixed equipment, HVAC, motors, and service sizing.

Inferred read-only

calculate_ev_charger

Use for EVSE continuous-load branch-circuit sizing and residential load-impact screening.

Inferred read-only

calculate_panel_schedule

Use when a user provides a panel schedule, panel rating, voltage system, breaker spaces, and circuit rows.

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.sparkshift-electrical-calculators]
url = "https://sparkshift.app/mcp"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "sparkshift-electrical-calculators": {
      "type": "http",
      "url": "https://sparkshift.app/mcp"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: sparkshift-electrical-calculators
Remote MCP URL: https://sparkshift.app/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": {
    "sparkshift-electrical-calculators": {
      "url": "https://sparkshift.app/mcp"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "sparkshift-electrical-calculators": {
      "type": "http",
      "url": "https://sparkshift.app/mcp"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "sparkshift-electrical-calculators",
  "transport": "streamable-http",
  "url": "https://sparkshift.app/mcp"
}

MCP Inspector

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

TRUST AND VERIFICATION EVIDENCE

Loading Trust v2 evidence…

Checking the associated registrable domain. The BuiltWith key remains server-side.

Indexed

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