API3 (API3) is a decentralized protocol bridging traditional web APIs with blockchain. It is designed to provide secure access to external data for smart contracts, ensuring reliability and integrity. Created by blockchain experts, API3 enables trustless interactions with real-world information in decentralized applications (dApps). It also incorporates governance features, allowing token holders to participate in decision-making and stake tokens for rewards. API3 revolutionizes Oracle services, enhancing the accuracy and verifiability of data used within the blockchain ecosystem.