Use !help for start.

!buytf (amount_of_keys) = Buy uncrafted card sets for a specific amount of TF2 Keys.
!checktf (amount_of_keys) = Shows how many card sets and what level you would reach for a specific amount of TF2 keys.

!checkgems (amount_of_gems) = Shows how many card sets and what level you would reach for a specific amount of Gems.
!buygems (amount_of_sets) = Buy a specific amount of uncrafted card sets for Gems.

!sellcheck = Checks for card sets the Bot can buy from you.
!selltf (amount_of_keys) = Sell card sets and get a specific amount of TF2 Keys.