Airbnb and Mashvisor provide an API that allows developers to access Airbnb listing data, including trends and statistics. To use this API, developers need to sign up for a RapidAPI account and subscribe to the Mashvisor API. The `GET Top Airbnb Cities` endpoint can be used to retrieve data on the top cities in a given state or region. This data can then be visualized using Python and the Matplotlib library, creating a bar chart that displays the count of total listings for each city.