Catfol.io helps you to estimate the value of your CryptoKitties - all of them, in one click. We use real market data by searching auctions for combinations of rare traits your kitties have, and also taking into account the generation & cooldown. In a similar way we calculate rarity of your CryptoKitties. After processing all of your cats we generate a report - we call it "Catfolio" - containing cats rarity, all cattributes, and median, average and first 10 prices on auctions for similar cats. If you have MetaMask installed - you will be able to sell your cats straight from your Catfolio, or buy cats from others Catfolios - with just one click, and user-definable Gas values.