Opyn (opyn)

DeFi options protocol known for Squeeth (squared ETH), a power perpetual that provides leveraged ETH exposure without liquidations.

What it offers

burnSqueeth: Burn oSQTH to close/reduce a squeeth position
withdrawCollateral: Withdraw ETH collateral from a vault
mintSqueeth: Mint oSQTH (open squeeth position) by depositing ETH collateral
deposit: Deposit additional ETH collateral to an existing vault

Squeeth = squared ETH exposure (ETH^2), providing leveraged upside without liquidations
Funding rate applies instead of liquidations - long positions pay short positions
oSQTH is the ERC-20 power perpetual token
Vaults hold ETH collateral backing minted oSQTH
vaultId=0 in mintPowerPerpAmount creates a new vault
Can use Uniswap V3 LP NFTs as collateral via uniTokenId parameter

On Ethereum, Opyn is a namespace: its contracts need no import.

function main() {
  // Ethereum's controller, `0x64187ae08781B09368e6253F9E94951243A493D5`.
  require(Opyn.Controller != 0);
}

Chain	Contract	Address	In a program
Ethereum	controller	`0x64187ae08781B09368e6253F9E94951243A493D5`	`Opyn.Controller`
Ethereum	oSQTH	`0xf1B99e3E573A1a9C5E6B2Ce818b617F0E664E86B`	`Opyn.OSQTH`

import ControllerABI from "./protocols/opyn/ControllerABI.json"; Speaks for: controller.

mintPowerPerpAmount(uint256 _vaultId, uint256 _powerPerpAmount, uint256 _uniTokenId) payable returns (uint256, uint256)
burnPowerPerpAmount(uint256 _vaultId, uint256 _powerPerpAmount, uint256 _withdrawAmount) returns (uint256 wPowerPerpAmount)
deposit(uint256 _vaultId) payable
withdraw(uint256 _vaultId, uint256 _amount)