Of all the markets being impacted by the booming API economy, perhaps none has seen as much activity and innovation as the payments space. The past several years have seen the launch of a number of disruptive and successful API-centric upstarts, including Stripe and Balanced. Meanwhile, entrenched players like PayPal and Verifone have responded with new offerings of their own.
In what many are calling a boon to real-time search, Topsy today announced a new round of funding that doubles the money it's raised. The company uses indexes Twitter and makes the results available on its website, as well as through its Topsy API, which sees more than half a billion queries per month.