QuoteTracker has a server which can be used for API (getting price data, send trades). I never used IB's API, so I don't know if the two are different. I just wonder if anyone is doing automation with QuoteTracker? or it is just too low class to work with. What features do you need in an automated trading system? A generic UI where you can use any language to program?
QT works very well with automation and in combo with the IB API. For example, here is the simple HTTP server docs: http://www.quotetracker.com/help/qtserver.shtml
My understanding is that now it doesn't work at all with IB since TD Ameritrade bought them out. Just look at the link to IB on the QT page you referenced; it's inactive.
QT will still retrieve quotes from IB, if the TWS is running. I don't use the broker interface, so I don't know if that still works. But having said that, I primarily get quotes from Money.net, thru the QT interface. They are the only ones I know of that offer unlimited snapshot quotes. I don't need streaming for most of my automation and I need more than the usual 100 - 500 quote limit. http://money.net/products/products_snapquotes.php