Crypto Core Education

What is the ERC-20 token standard?

ERC-20 is a technical standard that defines a common set of rules for creating fungible tokens on the Ethereum blockchain. By specifying functions like how tokens transfer and how balances are tracked, it lets wallets and applications support any compliant token without custom code. For example, a new ERC-20 token can immediately work with existing Ethereum wallets because it follows the shared interface. This interoperability is a large part of why so many tokens are issued on Ethereum and compatible networks.