# FPI Controller Pool

## Description

The FPI Controller Pool has various helper functions related to FPI and its peg, such as minting and redeeming FPI.

FPI Controller Pool: [`0x2397321b301B80A1C0911d6f9ED4b6033d43cF51`](https://etherscan.io/address/0x2397321b301B80A1C0911d6f9ED4b6033d43cF51)

### Mint / Redeeming

Users can mint FPI with FRAX or redeem FPI for FRAX. There is a small fee associated with this, initially 0.30%.

### twammToPeg

The twammToPeg function is used by the protocol to introduce market pressure to bring the market price of FPI up (or down) to the target peg price.

### giveFRAXToAMO / receiveFRAXFromAMO

The contract can lend FRAX collateral to various AMOs that earn yield (among other things).

## Code

{% embed url="<https://github.com/FraxFinance/frax-solidity/blob/master/src/hardhat/contracts/FPI/FPIControllerPool.sol>" %}