Slice the potatoes into wedges. To do this, start by slicing each potato in half lengthwise. Then slice each piece lengthwise again, and then do the same thing once more to each remaining piece – this will give you 8 wedges from each potato. If any of the wedges look very large, just slice them in half again.
In a small bowl, combine all the spices – the garlic powder, chili powder, salt, paprika, onion powder, and cayenne.
Place the potato wedges in a large bowl. Drizzle the olive oil over them, then add the spice mixture. Toss well until all potatoes are coated fairly evenly.
Place the potatoes in your air fryer basket. Air fry at 400 degrees for 10 minutes.
Remove the basket and give it a few good shakes to flip them and mix them up.
Return to the air fryer at continue cooking at 400 for another 12-17 minutes, or until the potatoes are slightly crisp on the outside and soft and tender on the inside.
Let cool for a few minutes and enjoy!