# Chainlink Oracles Chainlink’s decentralized metalayer of oracle networks allows smart contracts to seamlessly use and create an array of decentralized services that accelerate dApp development, enable cross-chain functionality, and harmonize disparate technologies.\\ Learn more about Chainlink CIAN leverages Chainlink Oracles to fetch accurate and real-time data on crypto asset pricing. This data enables CIAN to calculate the percentage yield of supported strategies, alongside the mint and redemption functions for i.e. ylBTCLST. By integrating Chainlink, CIAN ensures that yield calculations are updated in near real-time, optimizing returns for users. CIAN Yield layer uses Chainlink Oracles for BTC and ETH markets as a security check before accepting deposits into all CIAN Yield Layers/Vaults to ensure proper receipt tokens for all assets (i.e. ylstETH, ylrsETH) allocation calculations. This additional validation layer ensures that Yield Layers are safe, compliant with risk parameters, and operating under accurate market conditions. \\ --- # 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.cian.app/yieldlayer/for-builders-developer-documentation/chainlink-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.