Paint Calculator

Gallons of paint and number of coats for a room from wall dimensions, openings and coverage.

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

Parameters

Parameter	Type	Required	Description
`length`	number	required	Room length in feet
`width`	number	required	Room width in feet
`height`	number	required	Wall height in feet
`coats`	integer	optional	Number of coats (default 2)
`coverage_per_gal`	number	optional	Square feet covered per gallon (default ~350)
`include_ceiling`	boolean	optional	Include the ceiling area
`openings_sqft`	number	optional	Total area of doors/windows to subtract, in sqft

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": "paint", "arguments": {"length": 20, "width": 12, "height": 70}}}'

Or plain HTTP

curl -s https://wingmanprotocol.com/tools/paint \
  -H 'Content-Type: application/json' \
  -d '{"length": 20, "width": 12, "height": 70}'

Try it live

Edit the JSON and run it — this POSTs to https://wingmanprotocol.com/tools/paint 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).