The Inventory Pets Mod puts adorable little animals in your inventory. They serve many different useful purposes like giving you speed boosts, flight, and climbing up walls! So long as you have the pet in your hotbar, you will be able to utilize its abilities.
The purpose for the pets is to lend you the abilities that particular mob or item possesses. Creepers will protect you from blasts, Endermen will teleport you away when you’re low on health, Chickens will increase your speed, and Squids will allow you to breath, swim and see better underwater!
Your new pets will need to eat to survive so you’ll need to keep a stack of the pet’s desired food in your inventory and they’ll find it when they need it. All of the recipes to craft pets will have their food source as the top-center item so you’ll need to keep that item available to feed them.