# What Is DeFi ? DeFi is short for "Decentralized Finance". Compared with traditional centralized finance, it refers to applications in various financial fields established in an decentralized network. Users no longer need to participate in the financial market through centralized institutions, but can use the decentralized network to acquire, trade, and lend assets. Simply speaking, it is to establish a new financial system that is open to everyone without the need for intermediaries such as banks. The goal of DeFi is to establish a multi-level financial system to recreate and improve the existing financial system based on blockchain technology and cryptocurrency. Currently, almost all DeFi projects are running on the Ethereum blockchain, and smart contracts are the main constructed blocks of DeFi. The most common types of DeFi Dapps today include Compound, MakerDAO, Synthetix, and decentralized exchanges (Uniswap, PancakeSwap, etc.) --- # 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://help.tokenpocket.pro/es/blockchain-basics/what-is-defi.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.