Preheat oven to 425 F, and prepare a muffin pan with liners.
Add topping ingredients to a small bowl and mix to combine. Set bowl aside.
In a medium bowl combine eggs (4), pumpkin puree (3/4 cup), unsalted butter ( 1/4 cup), vanilla (2 teaspoons) and combine using an electric mixer.
In a second bowl, add almond flour (2 cups), coconut flour (1/2 cup), erythritol (3/4 cup), baking powder (1 1/2 teaspoon), salt ( 1/2 teaspoon), pumpkin pie spice (2 teaspoons), and stir to combine.
Add dry ingredients to wet ingredients and combine.
Pour batter into prepared muffin pan.
Cook for 22-24 minutes, checking after 15 minutes to see that the streusel isn't burning. If burning, place foil over the top and continue to bake. Enjoy!