ERC-20

ERC stands for Ethereum Request for Command, and ERC-20 is one of the most widely used token standards in Ethereum to create fungible, exchangeable tokens. ERC-20 tokens can easily work with majority of decentralized applications that support the standard. With ERC-20, existing products will not have to worry about accepting tokens that have different standards and this has helped spur development of various decentralized applications within the Ethereum ecosystem. Most tokens that have been released as a result of initial coin offers (ICOs) are of the ERC-20 standard.