Airnode

Airnode is a decentralized oracle node that connects off-chain APIs to blockchain smart contracts, allowing external data to be integrated into decentralized applications (dApps). Airnode simplifies API connectivity by enabling API providers to easily serve data to smart contracts on any blockchain without needing to modify their APIs.

A decentralized insurance dApp could use Airnode to fetch real-time weather data from a trusted API for determining whether or not to pay out claims related to weather events. This integration allows smart contracts to make data-driven decisions based on real-world events.