Betfair is one of the world’s largest international online sports betting providers and pioneered the first successful Betting Exchange in 2000. The Betting Exchange, where customers come together in order to bet at odds sought by themselves or offered by other customers, has eliminated the need for a traditional bookmaker. Driven by world-leading technology the company now processes over five million transactions a day from its three million registered customers around the world.

The Betfair API provides live data from the Betfair Exchange for software developers to use in their own products.

There are approximately 70,000 Betfair customers betting on the Exchange via third-party built betting applications, with approximately 50 million bets and 10 billion data requests going through these applications every week.