The blockchain fee, also called the 'miners' fee is a blockchain transaction fee that is charged to users when performing a blockchain transaction or action. Each chain has it's own way of calculating these fees and the amount varies the more a blockchain is used. The
TokenPay (TPAY)
The average fee is 0.001 TPAY but if you receive a sending error you should increase the amount.
Bitcoin (BTC)
Bitcoin mining fees vary but you can consult them here
Litecoin (LTC)
For Litecoin fees you can read more here and see them here.
Verge (XVG)
Verge's fee is 0.1 XVG per transaction.