Contract Source Code:
/**
*Submitted for verification at Etherscan.io on 2024-12-16
*/
// SPDX-License-Identifier: MIT
/*
Website: https://evalu8r.org/
X: https://x.com/Evalu8rAi
Telegram: https://t.me/evalu8r
*/
pragma solidity ^0.8.22;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
}
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address to, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(
address from,
address to,
uint256 amount
) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
interface IERC20Metadata is IERC20 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
}
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
function name() public view virtual override returns (string memory) {
return _name;
}
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
function decimals() public view virtual override returns (uint8) {
return 18;
}
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
function transfer(address to, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_transfer(owner, to, amount);
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_approve(owner, spender, amount);
return true;
}
function transferFrom(
address from,
address to,
uint256 amount
) public virtual override returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, amount);
_transfer(from, to, amount);
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
address owner = _msgSender();
_approve(owner, spender, _allowances[owner][spender] + addedValue);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
address owner = _msgSender();
uint256 currentAllowance = _allowances[owner][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(owner, spender, currentAllowance - subtractedValue);
}
return true;
}
function _transfer(
address from,
address to,
uint256 amount
) internal virtual {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(from, to, amount);
uint256 fromBalance = _balances[from];
require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[from] = fromBalance - amount;
}
_balances[to] += amount;
emit Transfer(from, to, amount);
_afterTokenTransfer(from, to, amount);
}
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _spendAllowance(
address owner,
address spender,
uint256 amount
) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance != type(uint256).max) {
require(currentAllowance >= amount, "ERC20: insufficient allowance");
unchecked {
_approve(owner, spender, currentAllowance - amount);
}
}
}
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
}
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor() {
_transferOwnership(_msgSender());
}
function owner() public view virtual returns (address) {
return _owner;
}
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
interface IUniswapV2Factory {
function createPair(address tokenA, address tokenB) external returns (address pair);
function getPair(address tokenA, address tokenB) external view returns (address pair);
}
interface IUniswapV2Router02 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
}
contract EVALU8R is ERC20, Ownable {
IUniswapV2Router02 private constant _router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
address public v2Pair;
address public immutable devWallet;
uint256 public maxSwap;
uint256 public maxWallet;
uint256 public feeThreshold;
uint256 public buyFee = 5;
uint256 public sellFee = 5;
bool private _inSwap;
bool public limitsEnabled = true;
mapping (address => bool) private _isExcludedFromLimits;
event FeeSwap(uint256 indexed value);
constructor() ERC20("Evalu8r AI", "EVAi") {
uint256 totalSupply = 100000000 * 1e18;
maxSwap = (totalSupply * 2) / 100;
maxWallet = (totalSupply * 2) / 100;
feeThreshold = totalSupply / 1000;
devWallet = 0x3DC79D28784bafd26254c32655f054105386E687;
buyFee = 24; // high tax for initial blocks only
sellFee = 24; // high tax for initial blocks only
_isExcludedFromLimits[devWallet] = true;
_isExcludedFromLimits[msg.sender] = true;
_isExcludedFromLimits[tx.origin] = true;
_isExcludedFromLimits[address(this)] = true;
_isExcludedFromLimits[address(0xdead)] = true;
_mint(msg.sender, totalSupply);
}
function _transfer(
address from,
address to,
uint256 amount
) internal override {
require(from != address(0), "Transfer from the zero address not allowed.");
require(to != address(0), "Transfer to the zero address not allowed.");
require(amount > 0, 'Transfer amount must be greater than zero.');
bool excluded = _isExcludedFromLimits[from] || _isExcludedFromLimits[to];
require(v2Pair != address(0) || excluded, "Liquidity pair not yet created.");
bool isSell = to == v2Pair;
bool isBuy = from == v2Pair;
if(limitsEnabled && !excluded) {
if (isBuy || isSell)
require(amount <= maxSwap, "Swap value exceeds max swap amount");
if (!isSell)
require(balanceOf(to) + amount <= maxWallet, "Balance exceeds max holdings amount");
}
if (
balanceOf(address(this)) >= feeThreshold &&
!_inSwap &&
isSell &&
!excluded
) {
_inSwap = true;
swapTokenFee();
_inSwap = false;
}
uint256 fee = isBuy ? buyFee : sellFee;
if (fee > 0) {
if (!excluded && !_inSwap && (isBuy || isSell)) {
uint256 fees = (amount * fee) / 100;
if (fees > 0)
super._transfer(from, address(this), fees);
amount = amount - fees;
}
}
super._transfer(from, to, amount);
}
function swapTokenFee() public {
uint256 contractBalance = balanceOf(address(this));
if (contractBalance == 0) return;
if (contractBalance > feeThreshold * 15) contractBalance = feeThreshold * 15;
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = _router.WETH();
_approve(address(this), address(_router), contractBalance);
_router.swapExactTokensForETHSupportingFeeOnTransferTokens(
contractBalance,
0,
path,
address(this),
block.timestamp
);
uint256 ethFee = address(this).balance;
payable(devWallet).transfer(ethFee);
emit FeeSwap(ethFee);
}
function startTrading() external onlyOwner {
v2Pair = IUniswapV2Factory(_router.factory()).getPair(address(this), _router.WETH());
}
function updateFeeThreshold(uint256 newThreshold) external onlyOwner {
require(newThreshold >= totalSupply() / 100000, "Swap threshold cannot be lower than 0.001% total supply.");
require(newThreshold <= (totalSupply() * 2) / 100, "Swap threshold cannot be higher than 2% total supply.");
feeThreshold = newThreshold;
}
function setBuyFees(uint256 newBuyFee) external onlyOwner {
require(newBuyFee <= 25);
buyFee = newBuyFee;
}
function setSellFees(uint256 newSellFee) external onlyOwner {
require(newSellFee <= 25);
sellFee = newSellFee;
}
function removeLimits() external onlyOwner {
limitsEnabled = false;
}
receive() external payable {}
}