HVAC Airflow & Load Calc
hvac-calc.x402tookit.com · 7 paid endpoints · listed 2026-11-02
Sensible heat from airflow and temperature difference (1.08 x CFM x dT), or the CFM needed for a heat load.
pendinglast check not yet
–valid x402 answers, 72 h
sharedUSDC received on Base, 7 days
2distinct payers, 7 days
10.5score (0-100)
Paid endpoints
| Method | Endpoint | Price | Networks |
|---|---|---|---|
| GET | hvac-calc.x402tookit.com/air-changes Air changes per hour (ACH) from airflow and room volume, or the CFM needed for a target ACH. | $0.02 | Polygon, Arbitrum, Base, Solana |
| GET | hvac-calc.x402tookit.com/duct-equivalent Equivalent round diameter of a rectangular duct (same friction), or the second side that matches a round duct. | $0.02 | Polygon, Arbitrum, Base, Solana |
| GET | hvac-calc.x402tookit.com/duct-velocity Air velocity (FPM) and velocity pressure (in. wg) in a round or rectangular duct from CFM, or the CFM at a velocity. | $0.02 | Polygon, Arbitrum, Base, Solana |
| GET | hvac-calc.x402tookit.com/efficiency-convert Convert EER, COP and kW per ton, and tons, BTU/h and kW of cooling capacity. | $0.02 | Polygon, Arbitrum, Base, Solana |
| GET | hvac-calc.x402tookit.com/fan-laws Fan affinity laws: new airflow, pressure and power after a speed change (flow ~ N, pressure ~ N^2, power ~ N^3). | $0.02 | Polygon, Arbitrum, Base, Solana |
| GET | hvac-calc.x402tookit.com/mixed-air Mixed-air temperature of two airstreams (return plus outside air) and the outside-air fraction. | $0.02 | Polygon, Arbitrum, Base, Solana |
| GET | hvac-calc.x402tookit.com/sensible-heat Sensible heat from airflow and temperature difference (1.08 x CFM x dT), or the CFM needed for a heat load. | $0.02 | Polygon, Arbitrum, Base, Solana |
Latest checks
| When | Endpoint | HTTP | ms | Result |
|---|---|---|---|---|
| Not checked yet. | ||||
Income on Base (7 days)
This provider's payout address is shared by several providers, so its income is not shown as its own.
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