# Exchange Automated market makers (AMMs) are agents that pool liquidity and make it available to traders according to an algorithm. Constant function market makers (CFMMs), a broad class of AMMs of which Pixel Exchange is a member, have seen widespread use in the context of decentralized finance, where they are typically implemented as smart contracts that trade tokens on a permissionless blockchain --- # 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.hellopixel.network/produts-v1/exchange.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.