TrendMedium is a Add-on for Equis MetaStock (a stock trading application) that allows you to locate stocks which are predictable over a given period, profile them to build a model of the ticker movements, and use this profile to make accurate predictions about the current performance and identify turning points in the stock movements. TrendMedium is an official MetaStock add-on.
QuoteFilter is a companion to Xinvest and Xquote. You can use it to filter your emails messages and process the contents of some messages to retrieve stock quotes from them. The quote information can be stored in the files that Xinvest uses so that you'll automatically use recent information. Xquote serves a similar purpose, but it retrieves stock quote information from Internet servers.
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.