FRAX Price: $1.04 (+6.94%)

Contract

0xf191072f158475ebA288FBcd818C043924d337D7

Overview

FRAX Balance | FXTL Balance

0.000000000837945146 FRAX | 83 FXTL

FRAX Value

Less Than $0.01 (@ $1.04/FRAX)

Token Holdings

More Info

Private Name Tags

Multichain Info

No addresses found
Transaction Hash
Block
From
To
Withdraw219712982025-06-24 8:21:47214 days ago1750753307IN
0xf191072f...924d337D7
0 FRAX0.000165680.00010025
Unyield219712932025-06-24 8:21:37214 days ago1750753297IN
0xf191072f...924d337D7
0 FRAX0.000202250.00010025
Withdraw219318892025-06-23 10:28:09215 days ago1750674489IN
0xf191072f...924d337D7
0 FRAX0.000071290.00010025
Unyield219318832025-06-23 10:27:57215 days ago1750674477IN
0xf191072f...924d337D7
0 FRAX0.000083230.00010025
Deposit219317092025-06-23 10:22:09215 days ago1750674129IN
0xf191072f...924d337D7
0 FRAX0.000073120.00010025
Withdraw218202092025-06-20 20:25:29218 days ago1750451129IN
0xf191072f...924d337D7
0 FRAX0.000064980.00010025
Unyield218201992025-06-20 20:25:09218 days ago1750451109IN
0xf191072f...924d337D7
0 FRAX0.00007990.00010025
Deposit218079012025-06-20 13:35:13218 days ago1750426513IN
0xf191072f...924d337D7
0 FRAX0.000121380.00010025
Withdraw217786422025-06-19 21:19:55218 days ago1750367995IN
0xf191072f...924d337D7
0 FRAX0.000080480.00010025
Unyield217786362025-06-19 21:19:43218 days ago1750367983IN
0xf191072f...924d337D7
0 FRAX0.000093040.00010025
Deposit216937252025-06-17 22:09:21220 days ago1750198161IN
0xf191072f...924d337D7
0 FRAX0.000062760.00010025
Withdraw214552972025-06-12 9:41:45226 days ago1749721305IN
0xf191072f...924d337D7
0 FRAX0.00010020.00010025
Unyield214552892025-06-12 9:41:29226 days ago1749721289IN
0xf191072f...924d337D7
0 FRAX0.000122740.00010025
Yield214552662025-06-12 9:40:43226 days ago1749721243IN
0xf191072f...924d337D7
0 FRAX0.000140560.00100025
Approve Token Fo...214552622025-06-12 9:40:35226 days ago1749721235IN
0xf191072f...924d337D7
0 FRAX0.000113520.00100025
Deposit214552122025-06-12 9:38:55226 days ago1749721135IN
0xf191072f...924d337D7
0 FRAX0.00010420.00010025
Withdraw214550782025-06-12 9:34:27226 days ago1749720867IN
0xf191072f...924d337D7
0 FRAX0.000105760.00010025
Unyield214550712025-06-12 9:34:13226 days ago1749720853IN
0xf191072f...924d337D7
0 FRAX0.000135420.00010025
Unyield214550242025-06-12 9:32:39226 days ago1749720759IN
0xf191072f...924d337D7
0 FRAX0.000148530.00100025
Deposit214549562025-06-12 9:30:23226 days ago1749720623IN
0xf191072f...924d337D7
0 FRAX0.000119510.00010025
Yield214531142025-06-12 8:28:59226 days ago1749716939IN
0xf191072f...924d337D7
0 FRAX0.000239910.00100025
Approve Token Fo...214531112025-06-12 8:28:53226 days ago1749716933IN
0xf191072f...924d337D7
0 FRAX0.000180250.00100025
Deposit214530282025-06-12 8:26:07226 days ago1749716767IN
0xf191072f...924d337D7
0 FRAX0.00014810.00010025
Withdraw214505822025-06-12 7:04:35226 days ago1749711875IN
0xf191072f...924d337D7
0 FRAX0.000064470.00010025
Unyield214505762025-06-12 7:04:23226 days ago1749711863IN
0xf191072f...924d337D7
0 FRAX0.000076890.00010025
View all transactions

Latest 3 internal transactions

Advanced mode:
Parent Transaction Hash Block From To
264689502025-10-06 11:03:31110 days ago1759748611
0xf191072f...924d337D7
0 FRAX
264064652025-10-05 0:20:41111 days ago1759623641
0xf191072f...924d337D7
0 FRAX
214504462025-06-12 7:00:03226 days ago1749711603  Contract Creation0 FRAX

Cross-Chain Transactions
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Similar Match Source Code
This contract matches the deployed Bytecode of the Source Code for Contract 0xf8AF5A4F...726A1b851
The constructor portion of the code might be different and could alter the actual behaviour of the contract

Contract Name:
Vault

Compiler Version
v0.8.20+commit.a1b79de6

Optimization Enabled:
Yes with 832 runs

Other Settings:
shanghai EvmVersion

Contract Source Code (Solidity Standard Json-Input format)

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import "./IVaultCreator.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/utils/ReentrancyGuard.sol";

contract Vault is ReentrancyGuard {
    address public immutable userAddress; // The primary user of this vault
    address public immutable botAddress; // The bot allowed to operate on this vault
    address public immutable adminAddress; // The VaultCreator's admin (for emergency/override)
    IVaultCreator public immutable vaultCreator; // To check whitelisted protocols

    event Deposited(address indexed token, address indexed user, uint256 amount);
    event Withdrawn(address indexed token, address indexed recipient, uint256 amount);
    event Approved(address indexed token, address indexed spender, uint256 amount);
    event Yielded(address indexed targetProtocol, bytes params, string reason, address caller);
    event Unyielded(address indexed targetProtocol, bytes params, address caller);

    modifier onlyUser() {
        require(msg.sender == userAddress, "Vault: Not user");
        _;
    }

    modifier onlyBot() {
        require(msg.sender == botAddress, "Vault: Not bot");
        _;
    }

    modifier onlyAdmin() {
        require(msg.sender == adminAddress, "Vault: Not admin");
        _;
    }

    modifier onlyUserOrAdmin() {
        require(msg.sender == userAddress || msg.sender == adminAddress, "Vault: Not user or admin");
        _;
    }

    modifier onlyBotUserOrAdmin() {
        require(
            msg.sender == botAddress || msg.sender == userAddress || msg.sender == adminAddress, "Vault: Not authorized"
        );
        _;
    }

    constructor(address _userAddress, address _botAddress, address _adminAddress, address _vaultCreatorAddress) {
        require(_userAddress != address(0), "Vault: Invalid user address");
        require(_botAddress != address(0), "Vault: Invalid bot address");
        require(_adminAddress != address(0), "Vault: Invalid admin address");
        require(_vaultCreatorAddress != address(0), "Vault: Invalid vault creator address");

        userAddress = _userAddress;
        botAddress = _botAddress;
        adminAddress = _adminAddress;
        vaultCreator = IVaultCreator(_vaultCreatorAddress);
    }

    function deposit(address token, uint256 amount) external onlyUser nonReentrant {
        require(token != address(0), "Vault: Invalid token address");
        require(amount > 0, "Vault: Amount must be greater than 0");

        uint256 allowance = IERC20(token).allowance(msg.sender, address(this));
        require(allowance >= amount, "Vault: Check token allowance");

        bool success = IERC20(token).transferFrom(msg.sender, address(this), amount);
        require(success, "Vault: Deposit transfer failed");

        emit Deposited(token, msg.sender, amount);
    }

    function withdraw(address token, uint256 amount) external onlyUserOrAdmin nonReentrant {
        require(token != address(0), "Vault: Invalid token address");
        require(amount > 0, "Vault: Amount must be greater than 0");

        uint256 balance = IERC20(token).balanceOf(address(this));
        require(balance >= amount, "Vault: Insufficient balance in vault");

        bool success = IERC20(token).transfer(msg.sender, amount);
        require(success, "Vault: Withdraw transfer failed");

        emit Withdrawn(token, msg.sender, amount);
    }

    function approveTokenForProtocol(
        address token,
        address protocolSpender,
        uint256 amount
    )
        external
        onlyBot
        nonReentrant
    {
        require(token != address(0), "Vault: Invalid token address");
        require(protocolSpender != address(0), "Vault: Invalid spender address");
        require(vaultCreator.isProtocolWhitelisted(protocolSpender), "Vault: Protocol not whitelisted");

        IERC20(token).approve(protocolSpender, amount);
        emit Approved(token, protocolSpender, amount);
    }

    function yield(
        address targetProtocol,
        bytes calldata callParams,
        string calldata reason
    )
        external
        payable
        onlyBot
        nonReentrant
    {
        require(targetProtocol != address(0), "Vault: Invalid target protocol");
        require(vaultCreator.isProtocolWhitelisted(targetProtocol), "Vault: Protocol not whitelisted for yield");

        (bool success, bytes memory returnData) = targetProtocol.call{ value: msg.value }(callParams);
        require(success, _getRevertMsg(returnData, "Vault: Yield call failed"));

        emit Yielded(targetProtocol, callParams, reason, msg.sender);
    }

    function unyield(
        address targetProtocol,
        bytes calldata callParams
    )
        external
        payable
        onlyBotUserOrAdmin
        nonReentrant
    {
        require(targetProtocol != address(0), "Vault: Invalid target protocol");

        if (msg.sender == botAddress) {
            require(
                vaultCreator.isProtocolWhitelisted(targetProtocol), "Vault: Protocol not whitelisted for bot unyield"
            );
        }

        (bool success, bytes memory returnData) = targetProtocol.call{ value: msg.value }(callParams);
        require(success, _getRevertMsg(returnData, "Vault: Unyield call failed"));

        emit Unyielded(targetProtocol, callParams, msg.sender);
    }

    receive() external payable { }

    function _getRevertMsg(bytes memory _returnData, string memory _defaultMsg) internal pure returns (string memory) {
        if (_returnData.length < 68) return _defaultMsg;
        assembly {
            _returnData := add(_returnData, 0x04)
        }
        return abi.decode(_returnData, (string));
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

interface IVaultCreator {
    function isProtocolWhitelisted(address protocol) external view returns (bool);
    function botAddress() external view returns (address);
    function admin() external view returns (address); // The admin of VaultCreator
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC-20 standard as defined in the ERC.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the value of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 value) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 value) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/ReentrancyGuard.sol)

pragma solidity ^0.8.20;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If EIP-1153 (transient storage) is available on the chain you're deploying at,
 * consider using {ReentrancyGuardTransient} instead.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant NOT_ENTERED = 1;
    uint256 private constant ENTERED = 2;

    uint256 private _status;

    /**
     * @dev Unauthorized reentrant call.
     */
    error ReentrancyGuardReentrantCall();

    constructor() {
        _status = NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be NOT_ENTERED
        if (_status == ENTERED) {
            revert ReentrancyGuardReentrantCall();
        }

        // Any calls to nonReentrant after this point will fail
        _status = ENTERED;
    }

    function _nonReentrantAfter() private {
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = NOT_ENTERED;
    }

    /**
     * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
     * `nonReentrant` function in the call stack.
     */
    function _reentrancyGuardEntered() internal view returns (bool) {
        return _status == ENTERED;
    }
}

Settings
{
  "remappings": [
    "@openzeppelin/=lib/openzeppelin-contracts/",
    "@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/",
    "erc4626-tests/=lib/openzeppelin-contracts/lib/erc4626-tests/",
    "forge-std/=lib/forge-std/src/",
    "halmos-cheatcodes/=lib/openzeppelin-contracts/lib/halmos-cheatcodes/src/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 832
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "shanghai",
  "viaIR": false,
  "libraries": {}
}

Contract Security Audit

Contract ABI

API
[{"inputs":[{"internalType":"address","name":"_userAddress","type":"address"},{"internalType":"address","name":"_botAddress","type":"address"},{"internalType":"address","name":"_adminAddress","type":"address"},{"internalType":"address","name":"_vaultCreatorAddress","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"ReentrancyGuardReentrantCall","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"token","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Approved","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"token","type":"address"},{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Deposited","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"targetProtocol","type":"address"},{"indexed":false,"internalType":"bytes","name":"params","type":"bytes"},{"indexed":false,"internalType":"address","name":"caller","type":"address"}],"name":"Unyielded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"token","type":"address"},{"indexed":true,"internalType":"address","name":"recipient","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Withdrawn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"targetProtocol","type":"address"},{"indexed":false,"internalType":"bytes","name":"params","type":"bytes"},{"indexed":false,"internalType":"string","name":"reason","type":"string"},{"indexed":false,"internalType":"address","name":"caller","type":"address"}],"name":"Yielded","type":"event"},{"inputs":[],"name":"adminAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"address","name":"protocolSpender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approveTokenForProtocol","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"botAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"deposit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"targetProtocol","type":"address"},{"internalType":"bytes","name":"callParams","type":"bytes"}],"name":"unyield","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"userAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"vaultCreator","outputs":[{"internalType":"contract IVaultCreator","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"targetProtocol","type":"address"},{"internalType":"bytes","name":"callParams","type":"bytes"},{"internalType":"string","name":"reason","type":"string"}],"name":"yield","outputs":[],"stateMutability":"payable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.