The AirVisual Pro air quality monitor comes with an inbuilt API. You can use this at any time to access your device's measurements, which can be used in a range of applications.
To access your device's API, first log in to your AirVisual account on the AirVisual website. Then, from your profile's drop-down menu, select "Devices" to reach your device dashboard.
Click on the 3 "dots" button at the right side of the monitor whose API you want to access, and select "API". This will provide you with your device's unique API link.
You can learn more about the Pro API's returned JSON format with the below article: