Prepare your air fryer with nonstick cooking spray or line with parchment. (*Check your manual to make sure cooking spray is ok).
Place the tater tots in the basket of the air fryer and cook at 400 degrees for 5-10 minutes, flipping/shaking halfway through cooking time. If they aren't crispy enough for you, cook for a few more minutes until the texture is to your liking.
Remove the tater tots from the air fryer and place on a platter. Serve with ketchup or another dipping sauce.
Make sure to give the basket a good shake every few minutes to promote even cooking.
Check to make sure your unit accepts cooking spray safely. Alternatively, you can use parchment paper. As long as you are shaking often, it will probably be safe to go without spray or liner.
Cooking time may vary depending on model of air fryer.