Years may pass by , but the hype for exchange business will never fade out . In this crypto economy there will always be great demands for the exchange business. Exchange business concept has evolved from centralized to decentralized , blockchain usage and lot . Since the centralized exchanges proves to the trusted exchange model by all people . Thus if you have idea of starting exchange business , start with centralized exchange . The main key factor needed to start your centralized cryptocurrency exchange is the centralized exchange script , the source code of exchange .