SparkQuote NEC calculators MCP Server

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not responding

SparkQuote NEC calculators is listed as active in the registry but did not answer our last check. It exposes 10 tools.

NEC 2023 electrical calculators: wire size, ampacity, voltage drop, conduit fill, box fill, load.

Uptime history 26 days of history · worst day 0%

26 days agonow

0.0%

Uptime 24h

0 of 92 checks

Tools

read from the server

94 ms

Response time

average over 24h

open, no key

Access

streamable-http

What changed 2

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 6 November 2026. No other catalogue keeps this.

6 Nov 2 tools changed the parameters they ask for box_fill, conduit_fill

SparkQuote NEC calculators does not always answer

Over the last week it answered 11.7% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 5 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

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

Settings → Connectors → Add custom connector, then paste this address

https://sparkquote.ai/mcp

~/.codex/config.toml

[mcp_servers.nec-calculators]
url = "https://sparkquote.ai/mcp"

.cursor/mcp.json

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

.vscode/mcp.json

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

Available tools 10

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

bid

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)).

box

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.

conduit

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.

load

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.

nec

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.

ohms

ohms_law

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

panel

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.

voltage

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

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.

wire

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 upsizes the conductors.

Endpoints

URL	Transport	State	Latency	Checked
https://sparkquote.ai/mcp	streamable-http	answering	94 ms	5 min ago

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SparkQuote NEC calculators — questions

Answers built from our own checks of this server.

What can SparkQuote NEC calculators do?

It exposes 10 tools, read directly from the server on our last check. Among them: bid_calculator, box_fill, conduit_fill, load_calculator, nec_ampacity, ohms_law and 4 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is SparkQuote NEC calculators working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 0 of 92 checks got a reply (0.0%), average response time 94 ms. The bar chart above shows every period we have measured.

The registry lists SparkQuote NEC calculators as active — why does it not respond?

The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.

How do I connect SparkQuote NEC calculators?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does SparkQuote NEC calculators need an API key?

No. SparkQuote NEC calculators completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 10 of them are readable on this page. This is what we observed, not what the docs claim.