Insulation Calculator

Material quantity and cost to hit a target R-value for a given assembly and climate zone.

Free tier eligible — 500 calls/month with a free key from /pricing; x402 pay-per-call above quota.

Parameters

Parameter	Type	Required	Description
`area_sqft`	number	required	Area to insulate in square feet
`target_r_value`	number	optional	Target R-value
`assembly`	string	optional	Assembly type (e.g. wall, ceiling, floor)
`climate_zone`	string	optional	IECC climate zone (e.g. 5)
`product`	string	optional	Insulation product (e.g. batt, blown, spray)
`price_per_sqft`	number	optional	Price per square foot in USD
`price_per_unit`	number	optional	Price per unit/bag in USD

Call it over MCP (JSON-RPC 2.0)

curl -s https://wingmanprotocol.com/mcp \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  -d '{"jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": {"name": "insulation", "arguments": {"area_sqft": 100}}}'

Or plain HTTP

curl -s https://wingmanprotocol.com/tools/insulation \
  -H 'Content-Type: application/json' \
  -d '{"area_sqft": 100}'

Try it live

Edit the JSON and run it — this POSTs to https://wingmanprotocol.com/tools/insulation from your browser.

This tool is x402-metered — agents pay per call with USDC on Base. The 402 response below is the standard x402 payment-requirements envelope: sign the EIP-3009 authorization and retry with the X-Payment header, or get a free key at /pricing (500 calls/month, no card, no crypto).