# Price Oracles Off-chain price feeds play a crucial role in decentralized finance (DeFi) applications by providing accurate, real-time market data that is not stored on the blockchain itself. For developers, this means access to a broader range of data sources, ensuring more accurate and reliable price information. This is especially important for applications like lending platforms or decentralized exchanges, where precise asset valuation is essential for maintaining fairness and preventing manipulation or inaccuracies due to limited on-chain data. Off-chain price feeds on IoTeX can be obtained through a [Chainlink Relayer](https://docs.iotex.io/the-iotex-stack/web3-development/off-chain-price-feeds/chainlink-relayer), or through [SupraOracles](https://docs.iotex.io/the-iotex-stack/web3-development/off-chain-price-feeds/supraoracles). --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.iotex.io/depin/builders/defi/price-oracles.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.