MFI is the native asset of the Marginswap protocol, and you can earn it by adopting the protocol (lending, trading, and staking). MFI has several functions:
Governance: MFI holders decide the future of the protocol through on-chain votes
Reward: Bond lenders, traders, and liquidity providers receive MFI incentives for using the protocol, granting them a voice in the protocol's governance
Liquidation: To act as a keeper or liquidator, MFI will have to be staked (liquidators receive 5% of the total value of each liquidated trade)