The BitStamp Node.js SDK by Ruben Callewaert allows developers to integrate the BitStamp API into their Node.js applications. Its dependencies are underscore and request.
In an innovative move, Nasdaq will launch the pilot test of the new Nasdaq Private Market using Bitcoin’s blockchain technology thanks to Bitcoin startup Chain’s API.
It's been two and a half years since we wrote about the API you need $25,000 to use. According to several reports online, accounts must hold $500,000 or perform 30 or more trades per quarter to use the TD Ameritrade API.