# Risk oracle To remain gas and capital-efficient, IPOR Protocol relies on several externally modeled constants: * leverage cap * collateral factor * a dynamic offered rate cap * base spread params Those params are not saved to the chain, instead, they are compiled by the off-chain oracle service, signed, and provided via an S3 API. This solution allows to have the params always ready compiled regardless of the computational effort required to prepare them. The most recent risk params can be found under this URL: \------------------------ They are valid for 5 minutes from the moment they are published, and publication is done every 60 seconds. Methods that require risk params to be passed are: * opening swap * unwinding swap * getting offered rate --- # 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.ipor.io/ipor-derivatives/automated-market-maker/risk-oracle.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.