Sorry if this has been posted recently. I tried searching but couldn't find what I was looking for. I'm looking for a 3rd party plugin to provide basic analysis data, such as an ATR. I'm writing a system and I am trying to use as few resources as possible so I don't want to store tick data (to manually compute the ATR). I also don't want another program like eSignal running. Basically, I want to pass through the symbol, the amount of bars, and the bar length, and have the ATR passed back. Does a service like this exist? I know how to do it if I have tradestation or esignal running, but I figure a feed of sorts would be so much easier. Thanks, I enjoy reading the posts on this site each day and hope to one day actually have something to contribute!