I am looking at building a forex system, but need a forex feed. Is there any C2 data service that can provide historic and or real time data for AUD/JPY or JPY/USD etc?
AFAIK, C2 doesn’t provide any data feeds. You should try your broker or a paid service like eSignal. You could also check out OpenTick, but I don’t know how reliable their data is, or if they provide forex data at all.