Preheat the air fryer to 375 degrees F for 3 minutes.
Pour meatballs into the air fryer, cooking them in a single layer with a little room between each if at all possible. You may need to cook in multiple batches depending on the size of your air fryer. Cook for 10-12 minutes, shaking the basket every 3-5 minutes for even cooking.
While meatballs are cooking, mix together the jelly and barbecue sauce. Microwave for 30 seconds and stir until smooth.
Once meatballs are cooked through, toss with grape barbecue sauce in a bowl until well coated, then serve. For an easy potluck dish, pour into a slow cooker and keep on "warm." Alternatively, serve with the sauce on the side so that guests can dip!
Notes
I used the 1/2-ounce meatballs because they're a great size for toothpick appetizers! If you are using 1-ounce meatballs, cook for 12-15 minutes instead.