# Permissionless System A decentralized exchange (DEX) is a type of cryptocurrency exchange that operates on a decentralized network, such as a blockchain. One of the key features of a DEX is that it is permissionless, which means that anyone can use it without needing to obtain permission or approval from a central authority. This is in contrast to centralised exchanges, which typically require users to go through a lengthy and often complex process to get approved to use the exchange. With a DEX, users can create an account and start trading if they have the necessary software and hardware to interact with the decentralised network. The permissionless nature of DEXs makes them more accessible and user-friendly, as users do not need to go through any kind of approval process to use them. It also makes them more decentralized and resistant to censorship, as there is no central authority that can block or restrict access to the exchange. Overall, the permissionless nature of DEXs is one of their key benefits, as it enables anyone to use them freely and easily. --- # 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.candyswap.gg/learning/permissionless-system.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.