In a medium-sized bowl, combine flour, baking powder, baking soda, and salt.
In another bowl, mix agave and coconut oil, add eggs, and whisk vigorously to combine. Whisk in yogurt, almond milk, and vanilla, and mix in bananas.
Add flour mixture to wet ingredients and mix until evenly moistened. Be careful not to over-mix, this will make the dough tough.
Carefully fold in blueberries.
Pour into one greased and flour (bottom only) 9x5-inch loaf pan.
Bake 10 minutes at 425 degrees. Reduce heat to 375 and bake 30 to 35 minutes. Check for doneness with a wooden pick. Cool 10 minutes on wire rack before inverting.