The MonitorHotels Rate Shopping Data API provides users all the data used for displaying charts on this site and much more. This API doesn't use traditional web crawlers/spiders to collect the data. MonitorHotels data is collected throughout the day from different cities worldwide (mostly US and Europe), quickly refreshed and in near-real-time. The data used is collected from a variety of sources and reviewed for accuracy. MonitorHotels.com works to automatically monitor hotel competitors and continually check room rates for 30 days.