There are multiple brokers that offer a currenex connection. However, you will more than likely need well over your $10,000 to trade with most of them. With FXCM they have enough capital to sustain the accounts and can then offer better leverage and even allow smaller trade sizes. For most traders these two things are going to be rather important factors. Trading on Currenex is great if you have a larger amount of capital to work with since the trade sizes are typically larger. Even though FXCM will allow you to open your account with $10k and give you 200:1 margin, for most traders its probably safer and better to stick with a standard single bank feed if thats all you have to work with. The current issue for FXCM is to get profitable traders off the FXTS setup and into a Prop account because it reduces their liability on having to offset trades and still allows them to profit from your trading. If you arent looking to scalp this market and make 100+ trades per day, stick with the single bank account. That way if there are problems with execution or something where you get screwed, you have a means of correction. With Currenex if you have orders that fail to execute due to rapidly changing prices, you have no recourse only the losses.
Other thoughts and considerations for trading Currenex would be things such as pc speed and memory as the only option for Currenex is a JAVA platform which runs you in the ground on a substandard machine. Also the platform has a built in connection monitor so that if your internet connection is off a bit it will not allow you to place trades. By sticking with FXCM on their Prop account, you also have access to monitor trades from your Prop account in your normal FXTS platform and can use their trading desk to call in trades in case of emergency. However, they do NOT give you Currenex rates but instead standard 3+ pip spread rates.
Companies like Tradition or FX Direct Deal will offer Currenex accounts, but their minimums are more along the lines of $50,000 capital and only giving you 50:1 margin with $1mil minimum trade size. If you do that quick math you are almost 50% used margin on one trade. All just things to keep in mind when choosing your next direction.