There are 2 things needed.
1) You need to be authorized for Forex data. We have 2 packages available. $25 for basic forex which includes Barclays and Tullet data, and $50 for Premium Forex which includes HotSpotFX forex data.
2) Depending upon which service you subscribe to, you will need to use the proper symbols. Symbology can be found at
http://www.iqfeed.net/symbolguide/index.cfm?symbolguide=guide&displayaction=support§ion=guide&web=iqfeed . Essentially you need to use a T (for tullet), B (for barclays), or H (for HotSpot) in front of the currency pair to get the spot price.
To add forex to your subscription, go to
www.iqfeed.net and click on "Add Services", then "Add Premium Services".
Jay Froscheiser
DTN - Trading Markets