Frequently Asked Questions
Chainlink is a decentralized oracle network that allows smart contracts to access off-chain data like market prices, weather, or APIs. This capability solves the "oracle problem" and enables hybrid smart contracts that interact with real-world events in a secure, tamper-proof way.
Chainlink integrates with Ethereum smart contracts using oracles that fetch external data and deliver it on-chain. Developers write smart contracts that request data through Chainlink nodes, and use Chainlink’s Solidity libraries to manage data inputs.
A Chainlink node is a piece of infrastructure that connects smart contracts to off-chain data sources. Nodes listen for data requests, retrieve information from APIs or external systems, and submit verified data back to the blockchain.
Chainlink VRF (Verifiable Random Function) provides cryptographically secure randomness. It’s widely used in blockchain gaming and NFT minting to ensure fairness in things like random character generation, loot box rewards, or token traits.
Chainlink Price Feeds offer decentralized, tamper-resistant market data such as ETH/USD or BTC/USD prices. DeFi apps use them for lending, borrowing, trading, and collateralization to ensure accurate and reliable pricing.
