Preheat the oven to 350 degrees F.
In a medium bowl, stir together the mayonnaise, cream cheese, Monterey Jack cheese, mozzarella cheese, chives, hard boiled eggs, and cayenne pepper.
Transfer the mixture to a shallow baking dish and top the mixture with the cracker crumbs and bake until heated through, about 15 minutes.
Remove the pan from the oven and top with the bacon. Serve immediately with crackers