# What Is Rangers Protocol Oracle The Rangers Protocol oracle is a valuable tool developed and maintained by Rangers Protocol to mainly provide price services for various tokens, currently including BTC, ETH, MIX, and RPG. It uses multiple decentralized exchanges as the price feed data source, with the median calculation being used to obtain the token price. The oracle allows developers to obtain real-time prices of various tokens in USD through its free API to conduct various commercial activities. --- # 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://rangersprotocol.gitbook.io/rangersprotocol/rangers-protocol-oracle/what-is-rangers-protocol-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.