The Bitfinex Go SDK by Bitfinex allows to access the API to integrate financial features associated with bitcoin and crypto-currencies. Official implementation, REST API, and WebSockets API available. It includes installation and usage.
It's hard to get excited about developing applications if there's no payoff for your efforts. That's the general consensus arising among makers of Windows Phone applications, who are dissatisfied with the poor sell through of advertisements. With no money coming in from ads, some developers say they'll have to start charging for their apps - or quit supporting Windows Phone.
Along with the growth of APIs in general has come the emergence of the API as a product. Many times a new startup is entirely an API. When the entire company is an API, you'd better choose the right API business model. When the API is the product, or the whole business, many times this means charging developers to use your API. It turns out, it's not just about how much you charge them, but how. This post will look at the many different ways that API-as-product companies are getting developers to pay for access.