> For the complete documentation index, see [llms.txt](https://docs.gravitaprotocol.com/gravita-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.gravitaprotocol.com/gravita-docs/readme.md). # Overview **Please review our Disclaimer and Terms of Service before using the Gravita Protocol or interacting with GRAI.** Gravita Protocol is a decentralised borrowing protocol built on Ethereum that provides users with interest-free loans secured by both Liquid Staking Tokens (LST) and a Stability Pool (SP).\ \ Loans are issued in the form of minting **GRAI**, a token with similar volatility dampening mechanism as LUSD, and can be *up to* 90% of the value of a user's collateral (99% in the case of bLUSD). You can find more information on the maximum LTV ratio of the supported assets in our [Vessels and Collateral page.](/gravita-docs/how-does-gravita-work/vessels-and-collateral.md)\ \ Gravita Protocol builds off [Liquity's economic model](https://github.com/liquity/dev) to ensure efficient borrowing and timely liquidations. A one-off borrowing fee is charged upfront on each new debt (or debt increase). In order to incentivize short-term borrowing, the fee is refunded if the user repays his debt before the expiry of six months (\~182 days), pro rata for the time elapsed, but the minimum fee corresponds to one week worth of interest. You will find more information on the [Fee Model](/gravita-docs/how-does-gravita-work/fee-model.md) page.\ \ Gravita has an unique multi-collateral design in which each position has a single collateral type, but they are all linked to the same stability pool:
Borrowers mint GRAI against the value of their collateral. It can then be used in various ways - swapping for other assets, or earning income by providing liquidity or participating in the stability pool.\ \ In order to reduce the volatility of GRAI, a Liquity-like redemption mechanism is enabled. \ \ Gravita Protocol is non-custodial, with the goal of becoming more ossified and governance-minimised.