The first online tool that allows you to follow the values of all cryptocurrencies and altcoins is Live Coin Watch. It integrates with all major exchanges and provides real-time information.
Live Coin Watch is a website that delivers cryptocurrency-related news and events. The web portal monitors several aspects of the cryptocurrency ecosystem, including market size, 24-hour trade volume, price history, and more.
Prices on Live Coin Watch are updated every few seconds. A cryptocurrency’s rank is decided by its market capitalization, which is derived by multiplying its volume weighted average price by its circulating supply.