Oracle Price Feed
A continuously updated price source published by an oracle network for smart contracts.
A continuously updated price source published by an oracle network for smart contracts.
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Sep 2026 · Показник свіжості: 50%
Що таке Oracle Price Feed?
A continuously updated price source published by an oracle network for smart contracts.
- Category
- concept
- Type
- Authority Node
- Джерела
- 1
Chainlink and similar networks aggregate prices from multiple independent sources (exchanges, data providers), filter outliers, and publish aggregated values on-chain via a network of node operators. Contracts read the feed through a refere
DeFi protocols — lending, derivatives, stablecoins — depend on price feeds for liquidations, valuations, and settlement. A manipulated or stale feed can cause cascading losses (e.g., the 2022 LUNA depeg and various oracle exploits). Feed se
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1. What Is an Oracle Price Feed
An oracle price feed is a decentralized data service that publishes asset prices to a blockchain so smart contracts can use real-world prices reliably. It is the pricing backbone of DeFi.
2. How It Works
Chainlink and similar networks aggregate prices from multiple independent sources (exchanges, data providers), filter outliers, and publish aggregated values on-chain via a network of node operators. Contracts read the feed through a reference contract interface. Decentralization (many nodes, many sources) prevents single-point manipulation. Feeds update at fixed intervals or on deviation thresholds.
3. Why It Matters
DeFi protocols — lending, derivatives, stablecoins — depend on price feeds for liquidations, valuations, and settlement. A manipulated or stale feed can cause cascading losses (e.g., the 2022 LUNA depeg and various oracle exploits). Feed security is therefore systemically important.
4. Key Facts
- Chainlink price feeds cover thousands of assets across many chains
- Feeds aggregate from multiple sources and nodes
- Deviation thresholds and heartbeat intervals govern updates
- Most major DeFi protocols use Chainlink feeds
5. Related Concepts
- oracle
- chainlink-ecosystem
- collateral-ratio
- auto-liquidation
Frequently Asked Questions
What is Oracle Price Feed?
A continuously updated price source published by an oracle network for smart contracts.
How does Oracle Price Feed work?
An oracle price feed is a decentralized data service that publishes asset prices to a blockchain so smart contracts can use real-world prices reliably. It is the pricing backbone of DeFi. Chainlink and similar networks aggregate prices from multiple independent sources (exchanges, data providers),
Why does Oracle Price Feed matter in Web3?
- chainlink-ecosystem - collateral-ratio - auto-liquidation