Oracle
price oracledata oracle
A service that brings off-chain data on-chain — most commonly asset prices used for liquidations and CDP minting.
Stablecoin and lending protocols depend on oracles for solvency. Failure modes: stale data, manipulated TWAPs, single-source dependency. Major providers: Chainlink, Pyth, RedStone, Chronicle, Tellor. Oracle robustness is a top-three driver of protocol risk grading.
Related terms
- ChainlinkThe dominant decentralised [[oracle]] network, securing price feeds, randomness, and cross-chain messaging.
- PythA pull-based oracle network sourced from first-party publishers (exchanges, market makers) — the dominant oracle on Solana.
- Oracle manipulationAn exploit class where an attacker moves the price an oracle reports, then triggers favourable liquidations / mints.
- Price feedAn oracle-published time-series of an asset price, queried on-chain by protocols to value collateral or compute liquidations.