What is API3
API3 is a decentralized API network (dAPI) allowing API providers to run lightweight Airnode first-party oracle nodes. Blockchain nodes must obtain outside information via oracle nodes to reach consensus within the network. API3 offers a simple approach for API providers to utilize serverless Airnode functionality for existing cloud infrastructure, facilitating seamless integration between primary data providers and cryptonetworks. Smart contract platforms and dApp developers can leverage API3's dAPI network to bring anything from live weather data to market data for decentralized finance (DeFi) platforms. API3 token holders can stake ERC-20 API3 to earn rewards and participate in on-chain governance.