Preheat oven to 350°F (175°C) and line an 8x8 inch baking pan with parchment paper.
Combine chickpeas, pumpkin puree, almond butter, maple syrup, vanilla extract, pumpkin pie spice, salt, baking powder, and baking soda in a food processor.
Process until the batter is completely smooth and homogeneous.
Fold in the vegan chocolate chips using a spatula.
Transfer the batter to the prepared baking pan and smooth the top.
Bake for 25 minutes or until the edges are firm and slightly browned.
Cool completely in the pan for at least 30 minutes to allow the structure to set before slicing.