Ethereum (ETH), Chainlink (LINK) and Uniswap (UNI): these three top-ranking Defi coins are sure to have you wanting in on the action. Ethereum, as the largest, oldest and most well-known of them all is responsible for powering many of our world’s foremost smart contracts and decentralized applications; whereas Chainlink serves as a middleware protocol that links blockchain networks with real-world data – another essential component used by so many DeFi apps.