register for a free FX data stream for 90 days
Visit Forex.com and create a username and password https://www.forex.com/en-us/demo-account/
Open NinjaTrader, from your Control Center, go to Tools - Options - General - CHECK Multi-Provider box and click OK.
Close and re-open Ninja for Multi-provider to be active. Reopen Ninja Trader and configure the New data connection.
Control Center- Connections – Configure – Select Forex.com, type in your username and password, check “Connect on Start-Up if you wish for it always to connect when you start Ninja,” and Click OK.
You will now be able to use the data feed