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AirNow API: Get air quality

Gets AirNow current air quality, pollutant readings and today's and tomorrow's forecasts for a US city or ZIP code, or a covered Canadian or Mexican city.

airnow.gov (opens in a new tab)Version 1ReadNo sign-inVerified Nov 2, 2026

Unofficial. Not affiliated with or endorsed by AirNow.

Inputs

Values from the run on Oct 23, 2026, shown under Output.

Location, requiredlocation

City and state, a five-digit US ZIP code, or a covered Canadian or Mexican city, for example Denver, CO or 94103.

Denver, CO

Output

From a run on Oct 23, 2026.
{  "aqi": 47,  "category": "Good",  "airnow_url": "https://www.airnow.gov/?reportingArea=Denver-Boulder&stateCode=CO",  "pollutants": [    {      "aqi": 16,      "category": "Good",      "pollutant": "Ozone"    },    {      "aqi": 4,      "category": "Good",      "pollutant": "PM2.5"    },    {      "aqi": 47,      "category": "Good",      "pollutant": "PM10"    }  ],  "health_advice": "Air quality is good. Enjoy outdoor activities.",  "main_pollutant": "PM10",  "reporting_area": "Denver-Boulder, CO",  "observation_time": "2026-10-23T03:00:00-06:00",  "today_forecast_aqi": null,  "forecast_discussion": null,  "today_forecast_date": "2026-10-23",  "tomorrow_forecast_aqi": null,  "tomorrow_forecast_date": "2026-10-24",  "today_forecast_category": "Good",  "tomorrow_forecast_category": null}
Price
1 credit per completed run (1¢ with pay as you go); failed runs are free.
Method
airnow.gov/get_air_quality
Returns
current AQI and category, pollutant readings, today and tomorrow forecasts, health advice, AirNow link

Use it from your agent

Give your agent this line. It reads SKILL.md, gets a Fous API key and connects the Fous MCP server. Its run then takes the method airnow.gov/get_air_quality with the inputs above.

Ask your agent

  • What's the air quality like in Denver, CO right now?
  • Can you check the current AQI for ZIP code 94103 and tell me the main pollutant?
  • I'm planning a run tomorrow in Austin, TX. Is the air forecast going to be safe for outdoor exercise?
  • Give me today's and tomorrow's air quality forecast for 10001 and any health advice for people with asthma.
  • Look up the current air quality category and pollutant readings for Guadalajara, Mexico on airnow.gov.

See more

  • Gets a city's current air quality, weather, daily forecast and health advice from IQAir.

    iqair.com/get_air_quality
  • Gets current conditions and RealFeel for a city or postal code on AccuWeather. The UV level follows standard UV-index ranges. Air quality is null unless it is shown with the current conditions.

    accuweather.com/get_current_weather
  • Gets the latest observed weather from a nearby National Weather Service station for a US city, address, or ZIP code. Measurements the station does not report are null.

    weather.gov/get_current_conditions
  • Gets current MSN Weather conditions for a city, address or ZIP code. The place is found through OpenStreetMap Nominatim. Matches for broad searches are approximate.

    msn.com/get_current_weather
  • Gets current conditions and today's high and low from The Weather Channel for a city, postcode, ZIP code or street address worldwide. Street addresses are geocoded exactly first; some observations omit gusts or other measurements.

    weather.com/get_current_weather
  • Returns up to five days of pollen index and level for a US ZIP code, with top allergens for today and tomorrow where Pollen.com lists them.

    pollen.com/get_pollen_forecast
  • Looks up a US city, street address or ZIP code and returns up to 156 hourly National Weather Service forecasts for it.

    weather.gov/get_hourly_forecast
  • Gets the 30-minute chance of aurora overhead near a place, current geomagnetic activity, and the three-day Kp outlook. Visibility also depends on darkness and local conditions; tonight uses approximate local solar hours 18:00-06:00.

    swpc.noaa.gov/get_aurora_forecast