> For the complete documentation index, see [llms.txt](https://docs.mento.org/mento-v3/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.mento.org/mento-v3/build/smart-contracts/reserve.md).

# Reserve

**Reserve** stores and manages ERC-20 collateral backing **Reserve-backed Mento stables** (USDm, EURm) on supported chains (e.g. Celo). The Reserve holds the fiat-backed assets (e.g. USDC, USDT, EUROC) that back circulating supply. In V3, the **ReserveLiquidityStrategy** is allowlisted on FPMM pools that pair USDm or EURm with those external stables; when a pool rebalances, the strategy mints or burns the Mento stable and moves collateral via the Reserve.

For the protocol role of the Reserve, see [The Reserve](/mento-v3/dive-deeper/the-reserve.md).

**Contract:** [mento-protocol/mento-core](https://github.com/mento-protocol/mento-core) — `contracts/swap/Reserve.sol`


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