NEXO The NEXO coin is an ERC20 based token, so it can be stored in any EthereumEthereumEthereum is an open source, public, blockchain-based distributed computing platform and operating system featuring smart contract functionality. It supports a modified version of Nakamoto consensus via transaction-based state transitions.en.wikipedia.org compatible wallet. But to use the Nexo platform and loan system, you have to download the Nexo Wallet and store your other cryptos in it.