On Ethereum

Swap stablecoins into USDV via EthereumLP

To integrate with EthereumLP, your application must:

  • Complete color KYC

  • Deploy contract, either:

    • Default, which will be deployed by the Operator, OR

    • Custom Minter Contract implementation interface and provide code hash and contract address to the Operator

  • After above, the contract will be:

    • STBT whitelisted

    • Registered to MinterProxy

Default: Minter.sol

Minter can configure:

  • Supported tokens (e.g. USDV).

  • Blacklisted callers.

  • Reward to user bps: The proportion, if any, of the LP contract reward to distribute to users. For example, if the reward bps from LP is 5bps, and you want to share 1 bps with users, the configuration would be 2000.

Interface for Custom Implementation

import {MessagingFee} from "@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/ILayerZeroEndpointV2.sol";

interface IMinter {
    struct SwapParam {
        address fromToken;
        uint fromTokenAmount;
        uint64 minUSDVOut;

    function swapToUSDV(
        address _sender,
        address _toSTBTLp,
        SwapParam calldata _param,
        address _usdvReceiver
    ) external returns (uint usdvOut);

    function swapToUSDVAndSend(
        address _sender,
        address _toSTBTLp,
        SwapParam calldata _param,
        bytes32 _usdvReceiver,
        uint32 _dstEid,
        bytes calldata _extraOptions,
        MessagingFee calldata _msgFee,
        address payable _refundAddress
    ) external payable returns (uint usdvOut);

    function getSwapToUSDVAmountOut(
        address _toSTBTLp,
        address _fromToken,
        uint _fromTokenAmount
    ) external view returns (uint usdvOut);

    function getSwapToUSDVAmountOutVerbose(
        address _toSTBTLp,
        address _fromToken,
        uint _fromTokenAmount
    ) external view returns (uint usdvOut, uint fee, uint reward);

    function getSupportedFromTokens(address _lp) external view returns (address[] memory tokens);

    function color() external view returns (uint32);

    function minterProxy() external view returns (address);

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