> For the complete documentation index, see [llms.txt](https://docs.monroeprotocol.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.monroeprotocol.com/guides/managing-a-vault.md).
# Managing a vault
Go to the vaults page and pick a collateral to open a vault.
A vault has an amount of collateral deposited and some amount of debt minted that eventually needs to be repaid.
In your vault page, there is a box to deposit and withdraw collateral, a box to mint or repay some RoeUSD debt, and a box with stats.
You can deposit collateral to increase your collateral to debt ratio (CDR).
