A great API encourages developers to use it and share it with others, creating a virtuous cycle where each additional successful implementation leads to greater engagement and more contributions from developers who add value to your service. Unfortunately, too many API providers build their APIs before thinking through the critical success. Betfair making betting easier. With a clear-cut layout, Betfair have managed to make navigating around their many betting areas as easy as possible. On the sportsbook homepage, Betfair hosts a top toolbar allowing for quick access to everything that they have to offer, including: Sportsbook, Exchange, Casino, Poker, Exchange Games, Macau, Virtual Sports, and more.