import requests

def aqi_checker(city_name):
    api_key = "API_KEY"
    url = f"https://api.waqi.info/feed/{city_name}/?token={api_key}"

    response = requests.get(url)
    json_data = response.json()
    aqi = json_data['data']['aqi']
    return f"The AQI in {city_name} is {aqi}"

print(aqi_checker("new york city"))