Ampworth calculators

by ampworth.com · com.ampworth/calculators

UK solar PV and heat pump calculators that follow the published MCS methods. Open, no key.

OnlineRemote
Category
Other
Connection
Remote (HTTP)
Tools
12 reported
Status
Online

Connect it to your AI

Claude Code

claude mcp add --transport http calculators https://ampworth.com/mcp/calculators

Claude, ChatGPT, Cursor and other apps

Add it as a custom connector with this URL (Streamable HTTP):

https://ampworth.com/mcp/calculators

Cursor, VS Code and other apps (mcp.json)

{
  "mcpServers": {
    "calculators": {
      "url": "https://ampworth.com/mcp/calculators"
    }
  }
}

Tools it offers

12 tools, as the server itself reported during our check on Oct 31, 2026.

  • connection_routeWork out which ENA connection procedure a domestic installation of solar panels, batteries or both falls under: connect first and notify the distribution network operator within 28 days, or apply and wait for approval be
  • heat_pump_noiseCalculate the sound pressure level an air source heat pump produces at an assessment position, and whether it meets the 37 dB(A) permitted development noise limit, using the method in MCS 020. The formula is Lp = Lw + 10
  • heat_pump_running_costCompare what a household spends heating on its current fuel with what the same heat would cost from a heat pump. The heat demand is worked out from the household's own metered fuel use, not from a model, because a year o
  • heat_pump_sizeEstimate the heat pump a UK house needs, and what it would cost to run against the fuel it burns now. IMPORTANT: MIS 3005-D requires a heat pump to be sized from a room-by-room heat loss calculation to BS EN 12831, and n
  • hot_water_cylinderWork out the daily hot water demand of a dwelling and the size of cylinder a heat pump needs, using the formula in MIS 3005-D 3.5.2 and the BS 6700 guidance reproduced in MGD 007. The demand is 45 litres a day for each o
  • list_calculatorsLists every calculator on this server, with the standard behind it and whether it is the whole-system sizing calculator or one of the single-method ones, plus the reference data a caller needs to build a valid request: t
  • radiator_flow_temperatureWork out the flow temperature a heat pump must produce to heat a room through a given radiator, and the resulting MCS Heat Emitter Guide star rating, following section 4 of MGD 007. This is the calculation that decides w
  • room_heat_lossCalculate the design heat loss of a single room in watts, following BS EN 12831 as MIS 3005-D applies it. This is the figure a heat pump is sized from and the figure the radiator in that room must be able to deliver. BS
  • solar_pv_outputEstimate the annual AC electricity output of a UK solar photovoltaic system, in kWh, using the standard estimation method that MIS 3002 requires every MCS certified installer to use. The method is: annual output = kWp x
  • solar_pv_self_consumptionEstimate what proportion of a domestic solar PV system's annual output is consumed in the house and what proportion is exported, using the lookup tables in MGD 003. The tables are not a model. They come from half-hourly
  • solar_pv_shadingConvert a completed MCS sunpath shading assessment into a shade factor, using the procedure in MGD 005. The MCS sunpath chart is divided into 84 segments, each worth one per cent of the year's useful irradiance. An asses
  • solar_pv_system_sizeWork out the solar PV system a UK home needs: the capacity in kWp, the number of panels, the battery to go with it, and what it would do to the electricity bill. This runs the MCS arithmetic backwards. The other solar ca

Questions

What is the Ampworth calculators MCP server?

UK solar PV and heat pump calculators that follow the published MCS methods. Open, no key. It is made by ampworth.com and listed in the official MCP Registry as com.ampworth/calculators. MCP (Model Context Protocol) is the open standard that lets AI apps like Claude, ChatGPT and Cursor use outside tools.

How do I add Ampworth calculators to Claude?

In the Claude app or claude.ai, open Settings, then Connectors, choose "Add custom connector" and paste https://ampworth.com/mcp/calculators. In Claude Code, run: claude mcp add --transport http calculators https://ampworth.com/mcp/calculators

How do I add Ampworth calculators to ChatGPT?

ChatGPT can use remote MCP servers as connectors. In ChatGPT settings, under Apps and Connectors, turn on developer mode if asked, create a new connector and paste https://ampworth.com/mcp/calculators.

How do I add Ampworth calculators to Cursor?

Open Cursor settings, go to MCP, choose "Add new MCP server" (or edit ~/.cursor/mcp.json) and add: { "mcpServers": { "calculators": { "url": "https://ampworth.com/mcp/calculators" } } }

Does Ampworth calculators work right now?

Yes. It responded when we last checked on 31 Oct 2026. We check remote MCP servers every day.

What can Ampworth calculators do?

It gives your AI 12 tools, including connection_route, heat_pump_noise, heat_pump_running_cost, heat_pump_size, hot_water_cylinder. The full list is on this page.

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Markdown (GitHub README)

[![Listed on chen.media/mcp](https://chen.media/mcp/badge/com-ampworth-calculators.svg)](https://chen.media/mcp/com-ampworth-calculators)

HTML (switches to dark mode on its own)

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