The GDAX Ruby Sample Code by GDAX demonstrates API access to streaming market data, implementing account history, and integrating amount reporting into web services. It includes initialization, methods, and parameters.
Our API directory now includes 96 stocks APIs. The newest is the Eurex VALUES API. The most popular, in terms of directory page views, is the Bloomberg API. In terms of the technical details, REST leads the way. Below are more stats from the directory, including the entire list of stocks APIs.