Tolls depend on which way you decide to drive. If you take the Beach Line (528) from the north exit of the airport, there is a $1.00 and a $.75 toll (2 stops). It's been a while but the last time we took the south exit and took the 417 (the way the Magical Express goes). I believe it's more money, and more stops. As a NYS thruway driver it's hard to get used to stopping every couple miles and pay more money instead of just paying once for the entire trip.
I'm not aware of any toll road system anywhere that doesn't take some sort of currency and requires you to be a registered user of that public road. Though some may not give change....possibly on the 417, can't remember exactly.