activeQuant (formerly known as CCAPI) is a financial engineering and financial application library for Java. It provides interfaces for automated stock exchange trading through IB. Additionally, it provides functions to retrieve online data from various sources: IB, OpenTick, and Yahoo. It provides a comprehensive library of technical and mathematical indicator implementations, like MACD, SMA, EMA, RSI, Williams %R, Correlation, and more. It also has a Matlab interface.