ActiveTick, data feed only, works natively on Linux.
http://www.activetick.com/activetick/contents/ActiveTickFeedAPIDetails.aspx
http://www.activetick.com/activetick/contents/ActiveTickFeedAPIDetails.aspx
Quote from vincegata:
ActiveTick, data feed only, works natively on Linux.
http://www.activetick.com/activetick/contents/ActiveTickFeedAPIDetails.aspx
Quote from softdown:
They send the orders to one of these brokers:
TD Ameritrade
FXCM
Gain Capital Forex
so routing is available through them.
They say other brokers will be available soon.
Interactive Broker's Unix API is free, FIX is $100/month.
You can also take a look at MB Trading. Their API is Windows only, however they offer free FIX, which I am using with Ubuntu. Their customer support is very responsive.
I'd never consider MONO which would add another source for errors to ATS.
http://www.mbtrading.com/developersMain.aspx?page=sdk