If you have a practice or demo account with FXCM, you will be able to connect the live data feed to PTS Primo Charts for free.
1. Open the DataFeed Settings under the Connections menu option, choose (Forex) OandaFXCM Customers, then click on Add.
2. Enter Username, and Password and choose Demo as the connection type.
https://www.fxcm.com/markets/indices/