if not, Can R|API link to some live simulation application for testing strategy?
Rithmic maintains many deployments of its software. The deployment known as Rithmic Paper Trading has live market data but orders are filled by an exchange simulator program that Rithmic wrote. As you may know, the futures exchanges prohibit the redistribution of live market data without charge for more than 30 days, unless the recipient has a funded trading account. Consequently, access to Rithmic Paper Trading is permitted accordingly.