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SparkQuote MCP server

Which MCP servers are SparkQuote's own, from the official registry and from asking its own domain, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-27

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Whose server it is
  • Registry nameai.sparkquote/nec-calculatorsverified in the MCP registry

The registry name sits under sparkquote.ai. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-27
  • Stateanswerschecked 2026-10-27
  • Tools10
  • Server calls itselfsparkquote
  • Server version1.0.0
  • Protocol version2025-06-18

On 2026-10-27 the server answered initialize and tools/list without a sign-in. First answer in 246 ms.

Should an agent connect itConnect it, with care
  • Its tools do Build priced proposals from labor units and supplier prices, but not Check takeoff counts against each plan sheet.

Once connected

  • For "Build priced proposals from labor units and supplier prices", the likely first call is bid_calculator.
  • Keep approval on for voltage_drop: they delete, send or pay without saying so.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

Measured dailydaily checks: 7, the first on 2026-10-27
  • INITE MCP score73 of 100answers 100 · does the job 50 · definitions 100 · context 100 · connects 100 · lowered by the warning signs below
  • What an agent can do with it1 of 2 use cases
  • Answered100% of days7 of 7 daily checks
  • Median first answer135 ms
  • Space in an agent's context≈ 2,676 tokensthe definitions of all its tools (10), which an agent carries on every turn
  • Tool definitionsA · 100 of 100
  • Typed results10 of 10 toolsdeclared outputSchema: results come typed, read once
  • Every tool passes all six checks.

What an agent can do with it

  • not sure · Count receptacles, switches and fixtures from PDF plan sets
  • cannot · Check takeoff counts against each plan sheet
  • can do · Build priced proposals from labor units and supplier prices

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

  • Tools that delete or pay, marked read-only: voltage_drop

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

Tools it offers10 tools · read 2026-10-27
  • 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…

  • 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…

  • 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…

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

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

Add it

Claude Code, in a terminal

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

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://sparkquote.ai/mcp as a custom connector in the settings.

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.