# Supply ### Supplying Assets When you deposit your tokens into the protocol, you receive a derivative token representing your underlying deposit. For example, when you deposit USDC you will receive the corresponding amount of lUSDC. The exchange rate for lUSDC/USDC is perpetually increasing at a rate equal to the supply interest rate of the underlying asset on a per block basis. Interest is accrued each block and changes dynamically with the utilization of the pool. If USDC suppliers are earning 2% APR on a given block, then the exchange rate for lUSDC/USDC is also increasing at a 2% annual rate for the block. When the user withdraws their tokens from the platform, they are simply exchanging their lUSDC back for USDC. As a result of the increasing exchange rate, the user will receive more USDC than they initially deposited: the principal plus accrued interest. --- # 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.ursa.finance/ursa/documentation/technical-overview/supply.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.