ryker,
The tool is available to anyone at any FCM, but the cost is different. They require a setup to get start of day; Positions files, Net liquidating value, Initial Margin requirements, Maintenance Margin requirements. Then they have to set up real-time drop copies from your FCM. The FCM and the company that provides this service, needs to be willing to put in the time and work for a small number of users.
Then for the stand alone full platfrom, their service starts at $5K/month per user. Wedbush uses them for their internal risk, so everything is set up already. They will charge only $100/month per user to get the basic version that shows positions, P&L and margins. The full version shows greeks and stress testing plus other tools. A user can view any of their accounts at Wedbush with one login. I have 4 accounts myself and I'm considering paying for this.
I was involved in building a risk platfrom at my old firm. I was very surprised when I found out this was priced this low for what it does. The cost and complexity is more than you would expect to get real time, accurate information.
Bob