Oracles & Data Feeds

Overview Purrlend utilizes a robust pricing architecture that aggregates data from multiple oracle providers. Pyth functions as the primary data source and Redstone serving as secondary provider. Oracles play a critical role in DeFi by delivering accurate, real-time market prices on-chain, ensuring proper collateral valuation, consistent loan management, and correct execution of liquidations.

Multi-Oracle Architecture To reduce the likelihood of price manipulation and ensure data integrity, Purrlend adopts a multi-oracle model. Incorporating several independent feeds enhances redundancy, improves reliability, and mitigates the risk of anomalous price updates. Pyth supplies the main data feed, while Redstone act as verification layers and fallback sources.

Oracles in Use:

Pyth: supplies high-quality market data gathered from a wide network of exchanges, market makers, and institutional contributors. With over 100 data publishers and support for hundreds of protocols across dozens of blockchains, Pyth offers a well-established source of dependable price information.

Redstone: offers a flexible oracle framework designed for fast and frequent price updates. Purrlend uses the Redstone Classic model, where data is pushed on-chain by a relayer when specific conditions—such as heartbeat periods or deviation limits—are met.

Correlated Assets Price Oracle (CAPO): CAPO is tailored for assets whose value closely follows another reference asset—such as wrapped tokens tracking their underlying chain token. This oracle uses specialized correlation logic to align its reported price with the asset it mirrors. Additional implementation details can be found in the project's GitHub documentation.

Hyperliquid Price Feeds: Hyperliquid Validators act as the primary source of price information for supported assets. They aggregate data from multiple markets and validate it through a decentralized network of nodes. This approach greatly reduces single-source dependency while delivering resilient, manipulation-resistant pricing.