Attribution

    activeweather sources data from public-domain and licensed commercial providers. Here's how to give proper credit.

    Data sources

    SourceDataLicenseRefresh cadence
    National Weather Service (NWS) Forecasts, current conditions, alerts Public Domain Forecast 15 min, alerts 1 min, current conditions 5 min
    AirNow Air quality index Public Domain Hourly
    NOAA/NESDIS STAR GOES ABI GeoColor satellite imagery NOAA open data, attribution requested Latest frame as available, cached for 5 min
    NOAA/NWS Radar MRMS base reflectivity imagery NOAA/NWS public-domain imagery, attribution requested Every 5 min, cached for 5 min
    Ambee Pollen API Allergy and pollen forecasts Commercial API license

    Requirements

    Public-domain sources do not require a specific license notice. Licensed commercial sources, including Ambee pollen data, must be attributed through the source metadata returned by the API. As a condition of using the activeweather API, you must:

    1. Display the sources array — Each API response includes a sources array. Display the source names visibly near the data. A small footer line like "Data from NWS" is sufficient.
    2. Link to the source — Where possible, make the source name a hyperlink to the URL provided in the sources array.

    Example attribution

    A minimal attribution line for forecast data:

    <footer>
  Data from <a href="https://www.weather.gov">NWS</a>
</footer>

    For air quality data:

    <footer>
  Air quality data from <a href="https://www.airnow.gov">AirNow</a>
</footer>

    For allergy data:

    <footer>
  Pollen forecast from <a href="https://www.getambee.com/api/pollen">Ambee Pollen API</a>
</footer>

    activeweather attribution page

    We maintain a comprehensive attribution page at /attribution listing all data sources, their licenses, and update frequencies. You may link to this page as an alternative to inline attribution.

    Widgets handle this automatically. If you're using activeweather widgets, attribution is built into the widget footer. No additional markup is needed.