Grate the zucchinis using a box grater or a food processor. Place the grated zucchini in a clean kitchen towel and squeeze out as much excess moisture as possible. Set aside.
In a food processor, pulse the chickpeas until they are finely chopped but not completely pureed. You want some texture to remain.
In a large mixing bowl, combine the grated and drained zucchini, chopped chickpeas, flour, vegan mayonnaise, coconut aminos, mustard, red bell pepper, green onions, minced garlic, lemon juice, Old Bay seasoning, kelp or dulse granules, paprika, cayenne, salt, and pepper. Mix well.
Gradually add the breadcrumbs to the mixture and stir until the mixture comes together and is firm enough to shape into patties. You may need to adjust the amount of breadcrumbs slightly.
Divide the mixture into equal portions and shape them into patties, about 3 inches in diameter and 1/2 inch thick. Coat each patty with additional breadcrumbs to give them a crispy exterior.
Heat vegetable oil in a skillet over medium-high heat.
Carefully place the zucchini crab cakes in the hot oil and cook for about 3-4 minutes on each side or until they are golden brown and crispy.
Remove the crab cakes from the skillet and place them on a paper towel-lined plate to remove any excess oil. Serve hot.
Garnish with fresh herbs, lemon wedges, or your favorite vegan dipping sauce