How much do kittens need to weigh before they can be spayed?

Please don't de-claw your cat. You shouldn't remove the cat's main defense. This practice is considered cruel in many places around the world, and in the U.K I'm pretty sure it's outlawed. You should consider trimming it's claws, or putting special caps on their tips. If you MUST de-claw your cat, check with a vet to make sure you don't de-claw it too early. Every cat is different and has different needs.