creation_sourcecode: // SPDX-License-Identifier: MIT
  
  /**
      web : https://cratosai.org
      app : https://app.cratosai.org
  
      medium : https://cratosai.medium.com
      twitter  : https://twitter.com/cratos_ai
      telegram : https://t.me/cratosai_official
  */
  
  pragma solidity 0.8.19;
  
  abstract contract Context {
      function _msgSender() internal view virtual returns (address) {
          return msg.sender;
      }
  }
  
  library SafeMath {
      function add(uint256 a, uint256 b) internal pure returns (uint256) {
          uint256 c = a + b;
          require(c >= a, "addition overflow");
          return c;
      }
  
      function sub(uint256 a, uint256 b) internal pure returns (uint256) {
          return sub(a, b, "subtraction overflow");
      }
  
      function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
          require(b <= a, errorMessage);
          uint256 c = a - b;
          return c;
      }
  
      function mul(uint256 a, uint256 b) internal pure returns (uint256) {
          if (a == 0) {
              return 0;
          }
          uint256 c = a * b;
          require(c / a == b, " multiplication overflow");
          return c;
      }
  
      function div(uint256 a, uint256 b) internal pure returns (uint256) {
          return div(a, b, "division by zero");
      }
  
      function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
          require(b > 0, errorMessage);
          uint256 c = a / b;
          return c;
      }
  }
  
  interface IERC20 {
      function totalSupply() external view returns (uint256);
  
      function balanceOf(address account) external view returns (uint256);
  
      function transfer(address recipient, 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 sender,
          address recipient,
          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
      );
  }
  
  contract Ownable is Context {
      address private _owner;
      address private _previousOwner;
      event OwnershipTransferred(
          address indexed previousOwner,
          address indexed newOwner
      );
  
      constructor() {
          address msgSender = _msgSender();
          _owner = msgSender;
          emit OwnershipTransferred(address(0), msgSender);
      }
  
      function owner() public view returns (address) {
          return _owner;
      }
  
      modifier onlyOwner() {
          require(_owner == _msgSender(), "Ownable: caller is not the owner");
          _;
      }
  
      function transferOwnership(address newOwner) public onlyOwner {
          _transferOwnership(newOwner);
      }
  
      function _transferOwnership(address newOwner) internal {
          require(
              newOwner != address(0),
              "Ownable: new owner is the zero address"
          );
          emit OwnershipTransferred(_owner, newOwner);
          _owner = newOwner;
      }
  
      function renounceOwnership() public virtual onlyOwner {
          emit OwnershipTransferred(_owner, address(0));
          _owner = address(0);
      }
  }
  
  interface IUniswapV2Factory {
      function createPair(address tokenA, address tokenB)
          external
          returns (address pair);
  }
  
  interface IUniswapV2Router02 {
      function swapExactTokensForETHSupportingFeeOnTransferTokens(
          uint256 amountIn,
          uint256 amountOutMin,
          address[] calldata path,
          address to,
          uint256 deadline
      ) external;
  
      function addLiquidityETH(
          address token,
          uint256 amountTokenDesired,
          uint256 amountTokenMin,
          uint256 amountETHMin,
          address to,
          uint256 deadline
      )
          external
          payable
          returns (
              uint256 amountToken,
              uint256 amountETH,
              uint256 liquidity
          );
  
      function factory() external pure returns (address);
  
      function WETH() external pure returns (address);
  }
  
  contract CratosAI is Context, IERC20, Ownable {
  
      using SafeMath for uint256;
      
      uint256 private constant _totalSupply = 100_000_000e18;
      uint256 private constant onePercent = 1_000_000e18;
  
      uint256 private _minCraSwapSize = 50*1e18;
      uint256 private _maxCraSwapSize = onePercent;
      uint8 private constant _decimals = 18;
  
      IUniswapV2Router02 immutable uniswapV2Router;
      address public uniswapV2Pair;
      address immutable WETH;
      address payable _craFees;
  
      uint256 private _buyTax = 0;
      uint256 private _sellTax = 5;
  
      string private constant _name = "Cratos AI";
      string private constant _symbol = "CRA";
  
      mapping(address => uint256) private _balance;
      mapping(address => mapping(address => uint256)) private _allowances;
      mapping(address => bool) private _isExcludedFromCraFees;
  
      uint8 private launch;
      uint8 private inSwapAndLiquify;
  
      uint256 private launchBlock;
      uint256 private launchDelay = 2;
  
      uint256 public maxWalletAmount = 2 * onePercent; // MaxWallet 2%
  
      constructor() {
          uniswapV2Router = IUniswapV2Router02(
              0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D  // UniSwap V2 Router
          );
          WETH = uniswapV2Router.WETH();
          _craFees = payable(0xfc98d7281bD473f7BeEa0ed8D1AFA5C7061F6912);  // marketing fees
  
          _balance[msg.sender] = _totalSupply;
          _isExcludedFromCraFees[_craFees] = true;
          _isExcludedFromCraFees[address(this)] = true;
  
          _allowances[address(this)][address(uniswapV2Router)] = type(uint256).max;
          _allowances[msg.sender][address(uniswapV2Router)] = type(uint256).max;
  
          emit Transfer(address(0), _msgSender(), _totalSupply);
      }
  
      function name() public pure returns (string memory) {
          return _name;
      }
  
      function symbol() public pure returns (string memory) {
          return _symbol;
      }
  
      function decimals() public pure returns (uint8) {
          return _decimals;
      }
  
      function totalSupply() public pure override returns (uint256) {
          return _totalSupply;
      }
  
      function balanceOf(address account) public view override returns (uint256) {
          return _balance[account];
      }
  
      function transfer(address recipient, uint256 amount)
          public
          override
          returns (bool)
      {
          _transfer(_msgSender(), recipient, amount);
          return true;
      }
  
      function allowance(address owner, address spender)
          public
          view
          override
          returns (uint256)
      {
          return _allowances[owner][spender];
      }
  
      function approve(address spender, uint256 amount)
          public
          override
          returns (bool)
      {
          _approve(_msgSender(), spender, amount);
          return true;
      }
  
      function transferFrom(
          address sender,
          address recipient,
          uint256 amount
      ) public override returns (bool) {
          _transfer(sender, recipient, amount);
          _approve(
              sender,
              _msgSender(),
              _allowances[sender][_msgSender()] - amount
          );
          return true;
      }
  
      function _approve(
          address owner,
          address spender,
          uint256 amount
      ) private {
          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 _transfer(
          address from,
          address to,
          uint256 amount
      ) private {
          require(from != address(0), "ERC20: transfer from the zero address");
          require(to != address(0), "ERC20: transfer to the zero address");
          require(amount > 0, "Transfer amount must be greater than zero");
  
          bool _takeFee = true;
          uint256 _tax;
  
          if (from == address(this) || to == address(this)) {
              _balance[from] -= amount;
              _balance[to] += amount;
  
              emit Transfer(from, to, amount);
              return;
          }
  
          if (_isExcludedFromCraFees[from] || _isExcludedFromCraFees[to]) {
              _tax = 0;
              _takeFee = false;
  
          } else {
              require(
                  launch != 0 && amount <= maxWalletAmount,
                  "Launch / Max Amount at launch"
              );
              if (block.number < launchBlock + launchDelay) {_tax=42;} else {            
                  if (inSwapAndLiquify == 1) {
                      //No tax transfer
                      _balance[from] -= amount;
                      _balance[to] += amount;
  
                      emit Transfer(from, to, amount);
                      return;
                  }
  
                  if (from == uniswapV2Pair) {
                      _tax = _buyTax;
                  } else if (to == uniswapV2Pair) {
                      uint256 tokensToSwap = _balance[address(this)];
                      if (inSwapAndLiquify == 0 && amount > _minCraSwapSize) {
                          if (tokensToSwap > _minCraSwapSize) {
                              if (tokensToSwap > _maxCraSwapSize) {
                                  tokensToSwap = _maxCraSwapSize;
                              }
                              inSwapAndLiquify = 1;
                              address[] memory path = new address[](2);
                              path[0] = address(this);
                              path[1] = WETH;
                              uniswapV2Router
                                  .swapExactTokensForETHSupportingFeeOnTransferTokens(
                                      tokensToSwap,
                                      0,
                                      path,
                                      _craFees,
                                      block.timestamp
                                  );
                              inSwapAndLiquify = 0;
                          }
                      }
                      _tax = _sellTax;
  
                  } else {
                      _tax = 0;   // No Tax For Transfer
                  }
              }
          }
  
          if (_takeFee) {
              //Tax transfer
              uint256 taxTokens = (amount * _tax) / 100;
              uint256 transferAmount = amount - taxTokens;
  
              _balance[from] -= amount;
              _balance[to] += transferAmount;
              _balance[address(this)] += taxTokens;
              emit Transfer(from, address(this), taxTokens);
              emit Transfer(from, to, transferAmount);
          } else {
              _tax = 0;
              _balance[to] += amount;            
              emit Transfer(from, to, amount);
          }
      }
  
      function initializeCraPairs() external onlyOwner {
          require(launch == 0, "already launched");
          uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(
              address(this),
              WETH
          );
          uniswapV2Router.addLiquidityETH{value: address(this).balance}(
              address(this),
              balanceOf(address(this)),
              0,
              0,
              owner(),
              block.timestamp
          );
      }
  
      function removeLimits() external onlyOwner {
          maxWalletAmount = _totalSupply;
      }
  
      receive() external payable {}
  
      function _basicTransfer(
          address sender,
          address recipient,
          uint256 amount
      ) internal returns (bool) {
          _balance[sender] = _balance[sender].sub(
              amount,
              "Insufficient Balance"
          );
          _balance[recipient] = _balance[recipient].add(amount);
          emit Transfer(sender, recipient, amount);
          return true;
      }
  
      function enableTrading() external onlyOwner {
          require(launch == 0, "already launched");        
          launch = 1;
          launchBlock = block.number;
      }
  
  }