You can buy:
19 sets for 1 TF2 key(s)
40 sets for 1 CSGO key(s)
1 set for 700 Gems

You can sell:
THE BOT ISN'T CURRENTLY BUYING SETS FOR KEYS

⦁ Add me as a friend.

⦁ Send a message to the bot and type !level [desired level].

⦁ It will tell you how many card sets you need and the amount of keys needed to buy them.

⦁ Type !buy [amount of key]

⦁ Click here to go to your Trade Offers, Accept and Confirm the Steam Trade Offer to receive your card sets!

⦁ Craft your badges to receive your XP and Level Up.

!Buy <Number of TF2 Keys> - Buy Card Sets for your Team Fortress 2 Keys.
!BuyCS <Number of CS:GO Keys> - Buy Card Sets for your CS:GO Keys.
!Buyany <Number of TF2 Keys> - Buy Random Full Sets in exchange for your TF2 Keys.
!BuyanyCS <Number of CS:GO Keys> - Buy Any Card Sets for your CS:GO Keys.
!Gem4Set <Number of Sets you want> - Get Card Sets for your Gems.

!Swap <Number of Backgrounds/Emotes to swap> - Swap your Backgrounds/Emotes 1:1.
!Set4Set <Number of sets to Swap> - Swap your Sets for Sets you haven't crafted yet.

!Price - Check the rates of the bot.
!Check - See how many Sets we have which you have NOT crafted.
!Level <Your Dream Level> - Check how much it costs to get to your Dream Level.
!Support - Link to support chat.
!Info - Information about the owner & giving feedback.