{"attribution":{"lines":["Weather data by Open-Meteo.com (https://open-meteo.com/), licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/); the AQI band, activity verdict, dominant pollutant and clean-air windows are derived from it.","Generated using Copernicus Atmosphere Monitoring Service information 2026.","Contains modified Copernicus Atmosphere Monitoring Service information 2026.","Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.","METEO FRANCE, Institut national de l'environnement industriel et des risques (Ineris), Aarhus University, Norwegian Meteorological Institute (MET Norway), Jülich Institut für Energie- und Klimaforschung (IEK), Institute of Environmental Protection – National Research Institute (IEP-NRI), Koninklijk Nederlands Meteorologisch Instituut (KNMI), Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek (TNO), Swedish Meteorological and Hydrological Institute (SMHI), Finnish Meteorological Institute (FMI), Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA) and Barcelona Supercomputing Center (BSC) (2022): CAMS European air quality forecasts, ENSEMBLE data. Copernicus Atmosphere Monitoring Service (CAMS) Atmosphere Data Store (ADS). (Updated twice daily)."],"text":"Weather data by Open-Meteo.com (https://open-meteo.com/), licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/); the AQI band, activity verdict, dominant pollutant and clean-air windows are derived from it.\nGenerated using Copernicus Atmosphere Monitoring Service information 2026.\nContains modified Copernicus Atmosphere Monitoring Service information 2026.\nNeither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.\nMETEO FRANCE, Institut national de l'environnement industriel et des risques (Ineris), Aarhus University, Norwegian Meteorological Institute (MET Norway), Jülich Institut für Energie- und Klimaforschung (IEK), Institute of Environmental Protection – National Research Institute (IEP-NRI), Koninklijk Nederlands Meteorologisch Instituut (KNMI), Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek (TNO), Swedish Meteorological and Hydrological Institute (SMHI), Finnish Meteorological Institute (FMI), Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA) and Barcelona Supercomputing Center (BSC) (2022): CAMS European air quality forecasts, ENSEMBLE data. Copernicus Atmosphere Monitoring Service (CAMS) Atmosphere Data Store (ADS). (Updated twice daily)."},"coverage":"Global (Copernicus CAMS models via Open-Meteo)","disclaimer":"Air quality is modelled (Copernicus CAMS via Open-Meteo), not a reading from a sensor at your exact location; local conditions near fires, traffic or industry can differ sharply. Activity guidance follows US EPA AirNow categories and is general public-health information, not medical advice — if you have a heart or lung condition, follow your clinician's advice.","example":"https://airscout.scalpstream.com/air?lat=47.6588\u0026lon=-117.4260\u0026hours=24\u0026duration=2","forecast_days":7,"parameters":{"duration":"how many hours you want to be outside (default 1) — the window is a contiguous block this long","hourly":"1 to include the full hourly series","hours":"how far ahead to search for a clean window (default 24, max 168)","lat":"required, decimal degrees","lon":"required, decimal degrees","place":"optional label used in the summary text"},"payment":"x402 (HTTP 402): USDC on Base, USDC on Arbitrum, USDC on Polygon, USDC on Solana, wrapped SOL on Solana, XRP on the XRP Ledger, RLUSD on the XRP Ledger. Custody-free.","price_usd":"0.01","service":"AirScout","source":"Open-Meteo Air Quality API (CC-BY-4.0), based on Copernicus Atmosphere Monitoring Service (CAMS) models","what":"Machine-payable air-quality queries: current US AQI and pollutants, an EPA-based verdict on outdoor exertion, and the cleanest contiguous window in the forecast ahead."}