Thoroughly mix flour, sugar, pumpkin pie spice, baking soda, baking powder and salt in a large bowl.
In a smaller bowl, mix together the eggs, pumpkin, and butter. Blend well. Stir in the chocolate chips.
Pour this mixture into the flour mixture and fold in with a spatula until just moistened. Spoon into greased muffin pans (or use cupcake liners) and bake for 25 minutes or until a toothpick comes out clean.