Air quality API: current US AQI plus PM2.5, PM10, ozone, and NO2 for any latitude/longitude worldwide, from a global air-quality model. Use for health advisories, travel planning, outdoor-event agents, and smart-home automation. Cached 15 minutes; attributed CC BY 4.0.
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.005000 USDC | 0x8503...9432 |