The TradeKing Java SDK by Ben Cook communicates with the API to access Api Keys and callbacks to integrate financial features into applications. It includes authentication OAuth, Key, secret, token, documentation, and installation.
IG, a world leader in CFD, financial spread betting, and forex, has opened up its web API to the public through the IG Labs initiative. Access to the API will allow developers to integrate IG’s internal functions with existing systems or build trading applications.
Facebook developers--all one million of them--can now monetize their apps using PayPal. The new partnership between the companies was announced at PayPal X Innovate, the online payment service's conference. PayPal's new micropayments will be integrated into Facebook for its virtual currency.
Lately we're seeing a lot more talk about API monetization. Last week we covered TweetPhoto's efforts at encouraging developers to use the TweetPhoto API through a transactional payment model (one penny or so for each photo uploaded via the API). Last month we covered Bandsintown, which provides affiliate earnings via use of its Bandsintown API. And more recently Touchnote announced an affiliate payment model (with a whopping 30% royalty) for developers working with its image API.