> For the complete documentation index, see [llms.txt](https://keep-finance.gitbook.io/keep-finance/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://keep-finance.gitbook.io/keep-finance/keep_core/lending-pool/flash-loan.md). # Flash Loan The flash loan operation will allow users to borrow from reserves in a single transaction, as long as the user returns more of the liquidity that has been tied up. The Keep protocol implements a solution that can use Flash Loans in combination with any other features of the protocol, thus powering many new possibilities: * Collateral trading. Change the risk from one or more collateral to another without closing the debt position. * Repay a loan with the collateral. Use the collateral deposit in the protocol to pay down debt positions. * Margin trading. Create margin positions that can be traded later. * Debt swaps. Change the risk of debt from one asset to another. * Margin deposits