Application Programming Interfaces (APIs) have been gaining relevance among hoteliers to transform their business and develop their digital capabilities for some time, but have they truly been harnessed to their full potential? As the ‘digital glue’ that links applications together, APIs foster collaboration with both internal and external partners and resources, and ultimately optimize operations and guest experiences. There is certainly a beneficial impact on the hotel industry when technology providers can integrate with other systems using proprietary or Open APIs to assist hoteliers in cutting costs, driving revenue and delivering exceptional service. However, with the vast number of vendors floating around the hotel technology industry, the utilization of APIs to drive results has become a driving force in hotel software selection.