Add the flour, eggs, milk, honey, vanilla, melted butter, and salt to a blender.
Blend for 20–30 seconds, or until the batter is smooth and no lumps remain.
Allow the batter to rest for 10–15 minutes. This gives the flour time to absorb the liquid and helps create soft, flexible crepes.
While the batter rests, combine the kiwi, pineapple, dragon fruit, and blueberries in a medium bowl. Drizzle with lime juice, if using, and toss gently to combine.
Heat an 8- or 10-inch nonstick skillet over medium heat. Lightly coat the pan with butter.
Pour about 1/4 cup of batter into the center of the skillet. Immediately lift and rotate the skillet so the batter spreads into a thin, even circle.
Cook the crepe for 1–2 minutes, or until the surface looks set and the edges begin to lift away from the pan.
Carefully flip the crepe with a thin spatula. Cook for another 20–30 seconds, or until lightly golden.
Transfer the cooked crepe to a plate. Repeat with the remaining batter, lightly buttering the skillet as needed. Stack the crepes on the plate and cover them with a clean kitchen towel to keep them soft.
Spoon the tropical fruit mixture down the center of each crepe. Fold the sides over the filling or fold each crepe into quarters.
Top with honey, powdered sugar and/or whipped cream. Serve immediately.