Would you be able to Rocket League Trading exchange cross-stage on Rocket League? 

The short response to this is both yes and no. The tradability of a thing is chosen which stage it was initially created on. This implies that in the event that you construct a Blueprint utilizing credits on PC, you will not have the option to exchange that thing with Xbox players, regardless of whether you sign into the game with a Xbox. 

Other tradable things will be tradable paying little mind to which stage you originally got them, however you'll just have the option to start exchanges with players that are signed into a similar stage as you. On the off chance that you'd prefer to exchange a thing to a companion on a Xbox as a PC player, you'll either Rocket League Item Prices have to change to a Xbox yourself or have them sign into the game through a PC.