Create your Matic ERC721 (NFT) smart contract

Easily deploy your ERC721 (NFT) smart contract. No login. No setup. No coding.

FAQ - Create an Matic ERC721 Token (NFT)

We are the solution that helps you deploy a Smart Contract in just one minute! No knowing how to code should not stop anyone from having a smart contract. We are here to make that happen.

We help you to create your own blockchain token (we call it Smart contract) on the Ethereum blockchain without having any knowledge of coding or technical background.

You'll need a web3 enabled Ethereum wallet/browser such as Metamask. You can easily download and install Metamask extension in any browser.

Get MetaMask here!

After you create your tokens, you are the sole owner of all tokens. You have full control of your tokens and you can send it to anyone.

No, ERC721 tokens can be stored on a regular Ethereum address, where you would normally store your MATIC. You can store multiple tokens on a single address.

ERC721 tokens are tokens created and transfered on the Matic network. ERC721 tokens are standardized in a way that enables all Ethereum wallets to send and receive tokens easily.

Your ERC721 token can be generated in just a few minutes. Sometimes it may take a bit longer when the Matic network is busy!

Absolutely not! We do everything for you.

If you'd like to know how, we generate the token's contract, compile it and deploy it to the blockchain for you. Once the token is deployed on the blockchain, we give you an interface where you can manage your tokens easily.

All contracts generated by CryptoGenerator.io are based on Open Zeppelin contracts. Their source code is public and can be browsed here.

Since it's open source, several well known developers have contributed to improve the Open Zeppelin contracts and make them one of the most reliable Ethereum smart contracts.

If you want to see actual code,

The CryptoGenerator.io interface allows you full intuitive control of your tokens. Unlike elsewhere, we let you do it with ease. All the features offered by your token can be managed from this interface, like transferring tokens to an address, minting tokens, burning tokens, or anything else you want!

Enumerable ERC721

        
pragma solidity ^0.8.0;

import '@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol';
import '@openzeppelin/contracts/access/Ownable.sol';

contract TypeERC721 is ERC721Enumerable, Ownable {
    using Strings for uint256;

    string public _baseTokenURI;
    uint256 public _price;
    uint256 public _maxSupply;

    constructor(address _owner, string memory name, string memory symbol, uint256 maxSupply, uint256 price, string memory baseURI, address payable _affiliated) ERC721(name, symbol) {
        setBaseURI(baseURI);
        _maxSupply = maxSupply;
        _price = price;
        if (msg.sender != _owner) {
            transferOwnership(_owner);
        }
    }

    function mint(uint256 mintCount) public payable {
        uint256 supply = totalSupply();

        require(supply + mintCount <= _maxSupply,   "max_token_supply_exceeded");
        require(msg.value >= _price * mintCount,    "insufficient_payment_value");

        for (uint256 i = 1; i <= mintCount; i++) {
            _safeMint(msg.sender, supply + i);
        }
        if (supply + mintCount == _maxSupply) {
            withdrawAll();
        }
    }

    /*
     * Mint reserved NFTs for giveaways, devs, etc.
     */
    function reserveMint(uint256 mintCount) public onlyOwner {
        uint256 supply = totalSupply();

        require(supply + mintCount <= _maxSupply,   "max_token_supply_exceeded");

        for (uint256 i = 1; i <= mintCount; i++) {
            _safeMint(msg.sender, supply + i);
        }
    }

    function _baseURI() internal view virtual override returns (string memory) {
        return _baseTokenURI;
    }

    function setBaseURI(string memory baseURI) public onlyOwner {
        _baseTokenURI = baseURI;
    }

    function setPrice(uint256 price) public onlyOwner {
        _price = price;
    }

    function tokensOfOwner(address owner) public view returns (uint256[] memory) {
        uint256 tokenCount = balanceOf(owner);
        uint256[] memory tokenIds = new uint256[](tokenCount);
        for (uint256 i = 0; i < tokenCount; i++) {
            tokenIds[i] = tokenOfOwnerByIndex(owner, i);
        }
        return tokenIds;
    }

    function withdrawAll() public payable onlyOwner {
        require(payable(owner()).send(address(this).balance));
    }

    /**
   * Override isApprovedForAll to auto-approve OS's proxy contract
   */
    function isApprovedForAll(address _owner, address _operator) public override view returns (bool isOperator) {
        // if OpenSea's ERC721 Proxy Address is detected, auto-return true
        if (_operator == address(0x58807baD0B376efc12F5AD86aAc70E78ed67deaE)) {
            return true;
        }

        // otherwise, use the default ERC721.isApprovedForAll()
        return ERC721.isApprovedForAll(_owner, _operator);
    }
}

Enumerable ERC721 with operation filter

        
pragma solidity ^0.8.0;

import '@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol';
import '@openzeppelin/contracts/access/Ownable.sol';
import "operator-filter-registry/src/DefaultOperatorFilterer.sol";

contract TypeERC721OperationFilter is ERC721Enumerable, DefaultOperatorFilterer, Ownable {
    using Strings for uint256;

    string public _baseTokenURI;
    uint256 public _price;
    uint256 public _maxSupply;

    constructor(address _owner, string memory name, string memory symbol, uint256 maxSupply, uint256 price, string memory baseURI, address payable _affiliated) ERC721(name, symbol) CryptoGenerator(_owner, _affiliated) payable {
        setBaseURI(baseURI);
        _maxSupply = maxSupply;
        _price = price;
        if (msg.sender != _owner) {
            transferOwnership(_owner);
        }
    }

    function mint(uint256 mintCount) public payable {
        uint256 supply = totalSupply();

        require(supply + mintCount <= _maxSupply,   "max_token_supply_exceeded");
        require(msg.value >= _price * mintCount,    "insufficient_payment_value");

        for (uint256 i = 1; i <= mintCount; i++) {
            _safeMint(msg.sender, supply + i);
        }
        if (supply + mintCount == _maxSupply) {
            withdrawAll();
        }
    }

    /*
     * Mint reserved NFTs for giveaways, devs, etc.
     */
    function reserveMint(uint256 mintCount) public onlyOwner {
        uint256 supply = totalSupply();

        require(supply + mintCount <= _maxSupply,   "max_token_supply_exceeded");

        for (uint256 i = 1; i <= mintCount; i++) {
            _safeMint(msg.sender, supply + i);
        }
    }

    function _baseURI() internal view virtual override returns (string memory) {
        return _baseTokenURI;
    }

    function setBaseURI(string memory baseURI) public onlyOwner {
        _baseTokenURI = baseURI;
    }

    function setPrice(uint256 price) public onlyOwner {
        _price = price;
    }

    function tokensOfOwner(address owner) public view returns (uint256[] memory) {
        uint256 tokenCount = balanceOf(owner);
        uint256[] memory tokenIds = new uint256[](tokenCount);
        for (uint256 i = 0; i < tokenCount; i++) {
            tokenIds[i] = tokenOfOwnerByIndex(owner, i);
        }
        return tokenIds;
    }

    function withdrawAll() public payable onlyOwner {
        require(payable(owner()).send(address(this).balance));
    }

    /**
   * Override isApprovedForAll to auto-approve OS's proxy contract
   */
    function isApprovedForAll(address _owner, address _operator) public override (ERC721, IERC721) view returns (bool isOperator) {
        // if OpenSea's ERC721 Proxy Address is detected, auto-return true
        if (_operator == address(0x58807baD0B376efc12F5AD86aAc70E78ed67deaE)) {
            return true;
        }

        // otherwise, use the default ERC721.isApprovedForAll()
        return ERC721.isApprovedForAll(_owner, _operator);
    }

    /**
    * OC Operator filter
    **/
    /**
    * @dev See {IERC721-setApprovalForAll}.
     *      In this example the added modifier ensures that the operator is allowed by the OperatorFilterRegistry.
     */
    function setApprovalForAll(address operator, bool approved) public override (ERC721, IERC721) onlyAllowedOperatorApproval(operator) {
        super.setApprovalForAll(operator, approved);
    }

    /**
     * @dev See {IERC721-approve}.
     *      In this example the added modifier ensures that the operator is allowed by the OperatorFilterRegistry.
     */
    function approve(address operator, uint256 tokenId) public override (ERC721, IERC721)  onlyAllowedOperatorApproval(operator) {
        super.approve(operator, tokenId);
    }

    /**
     * @dev See {IERC721-transferFrom}.
     *      In this example the added modifier ensures that the operator is allowed by the OperatorFilterRegistry.
     */
    function transferFrom(address from, address to, uint256 tokenId) public override (ERC721, IERC721) onlyAllowedOperator(from) {
        super.transferFrom(from, to, tokenId);
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     *      In this example the added modifier ensures that the operator is allowed by the OperatorFilterRegistry.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId) public override (ERC721, IERC721) onlyAllowedOperator(from) {
        super.safeTransferFrom(from, to, tokenId);
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     *      In this example the added modifier ensures that the operator is allowed by the OperatorFilterRegistry.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data)
    public
    override (ERC721, IERC721)
    onlyAllowedOperator(from)
    {
        super.safeTransferFrom(from, to, tokenId, data);
    }
}

ERC721 SeaDrop (OpenSea)

        
contract ERC721SeaDrop is
    ERC721ContractMetadata,
    INonFungibleSeaDropToken,
    ERC721SeaDropStructsErrorsAndEvents,
    ReentrancyGuard,
    DefaultOperatorFilterer
{
    /// @notice Track the allowed SeaDrop addresses.
    mapping(address => bool) internal _allowedSeaDrop;

    /// @notice Track the enumerated allowed SeaDrop addresses.
    address[] internal _enumeratedAllowedSeaDrop;

    /**
     * @dev Reverts if not an allowed SeaDrop contract.
     *      This function is inlined instead of being a modifier
     *      to save contract space from being inlined N times.
     *
     * @param seaDrop The SeaDrop address to check if allowed.
     */
    function _onlyAllowedSeaDrop(address seaDrop) internal view {
        if (_allowedSeaDrop[seaDrop] != true) {
            revert OnlyAllowedSeaDrop();
        }
    }

    /**
     * @notice Deploy the token contract with its name, symbol,
     *         and allowed SeaDrop addresses.
     */
    constructor(
        string memory name,
        string memory symbol,
        address[] memory allowedSeaDrop
    ) ERC721ContractMetadata(name, symbol) {
        // Put the length on the stack for more efficient access.
        uint256 allowedSeaDropLength = allowedSeaDrop.length;

        // Set the mapping for allowed SeaDrop contracts.
        for (uint256 i = 0; i < allowedSeaDropLength; ) {
            _allowedSeaDrop[allowedSeaDrop[i]] = true;
            unchecked {
                ++i;
            }
        }

        // Set the enumeration.
        _enumeratedAllowedSeaDrop = allowedSeaDrop;

        // Emit an event noting the contract deployment.
        emit SeaDropTokenDeployed();
    }

    /**
     * @notice Update the allowed SeaDrop contracts.
     *         Only the owner or administrator can use this function.
     *
     * @param allowedSeaDrop The allowed SeaDrop addresses.
     */
    function updateAllowedSeaDrop(address[] calldata allowedSeaDrop)
        external
        virtual
        override
        onlyOwner
    {
        _updateAllowedSeaDrop(allowedSeaDrop);
    }

    /**
     * @notice Internal function to update the allowed SeaDrop contracts.
     *
     * @param allowedSeaDrop The allowed SeaDrop addresses.
     */
    function _updateAllowedSeaDrop(address[] calldata allowedSeaDrop) internal {
        // Put the length on the stack for more efficient access.
        uint256 enumeratedAllowedSeaDropLength = _enumeratedAllowedSeaDrop
            .length;
        uint256 allowedSeaDropLength = allowedSeaDrop.length;

        // Reset the old mapping.
        for (uint256 i = 0; i < enumeratedAllowedSeaDropLength; ) {
            _allowedSeaDrop[_enumeratedAllowedSeaDrop[i]] = false;
            unchecked {
                ++i;
            }
        }

        // Set the new mapping for allowed SeaDrop contracts.
        for (uint256 i = 0; i < allowedSeaDropLength; ) {
            _allowedSeaDrop[allowedSeaDrop[i]] = true;
            unchecked {
                ++i;
            }
        }

        // Set the enumeration.
        _enumeratedAllowedSeaDrop = allowedSeaDrop;

        // Emit an event for the update.
        emit AllowedSeaDropUpdated(allowedSeaDrop);
    }

    /**
     * @dev Overrides the `_startTokenId` function from ERC721A
     *      to start at token id `1`.
     *
     *      This is to avoid future possible problems since `0` is usually
     *      used to signal values that have not been set or have been removed.
     */
    function _startTokenId() internal view virtual override returns (uint256) {
        return 1;
    }

    /**
     * @dev Overrides the `tokenURI()` function from ERC721A
     *      to return just the base URI if it is implied to not be a directory.
     *
     *      This is to help with ERC721 contracts in which the same token URI
     *      is desired for each token, such as when the tokenURI is 'unrevealed'.
     */
    function tokenURI(uint256 tokenId)
        public
        view
        virtual
        override
        returns (string memory)
    {
        if (!_exists(tokenId)) revert URIQueryForNonexistentToken();

        string memory baseURI = _baseURI();

        // Exit early if the baseURI is empty.
        if (bytes(baseURI).length == 0) {
            return "";
        }

        // Check if the last character in baseURI is a slash.
        if (bytes(baseURI)[bytes(baseURI).length - 1] != bytes("/")[0]) {
            return baseURI;
        }

        return string(abi.encodePacked(baseURI, _toString(tokenId)));
    }

    /**
     * @notice Mint tokens, restricted to the SeaDrop contract.
     *
     * @dev    NOTE: If a token registers itself with multiple SeaDrop
     *         contracts, the implementation of this function should guard
     *         against reentrancy. If the implementing token uses
     *         _safeMint(), or a feeRecipient with a malicious receive() hook
     *         is specified, the token or fee recipients may be able to execute
     *         another mint in the same transaction via a separate SeaDrop
     *         contract.
     *         This is dangerous if an implementing token does not correctly
     *         update the minterNumMinted and currentTotalSupply values before
     *         transferring minted tokens, as SeaDrop references these values
     *         to enforce token limits on a per-wallet and per-stage basis.
     *
     *         ERC721A tracks these values automatically, but this note and
     *         nonReentrant modifier are left here to encourage best-practices
     *         when referencing this contract.
     *
     * @param minter   The address to mint to.
     * @param quantity The number of tokens to mint.
     */
    function mintSeaDrop(address minter, uint256 quantity)
        external
        virtual
        override
        nonReentrant
    {
        // Ensure the SeaDrop is allowed.
        _onlyAllowedSeaDrop(msg.sender);

        // Extra safety check to ensure the max supply is not exceeded.
        if (_totalMinted() + quantity > maxSupply()) {
            revert MintQuantityExceedsMaxSupply(
                _totalMinted() + quantity,
                maxSupply()
            );
        }

        // Mint the quantity of tokens to the minter.
        _safeMint(minter, quantity);
    }

    /**
     * @notice Update the public drop data for this nft contract on SeaDrop.
     *         Only the owner can use this function.
     *
     * @param seaDropImpl The allowed SeaDrop contract.
     * @param publicDrop  The public drop data.
     */
    function updatePublicDrop(
        address seaDropImpl,
        PublicDrop calldata publicDrop
    ) external virtual override {
        // Ensure the sender is only the owner or contract itself.
        _onlyOwnerOrSelf();

        // Ensure the SeaDrop is allowed.
        _onlyAllowedSeaDrop(seaDropImpl);

        // Update the public drop data on SeaDrop.
        ISeaDrop(seaDropImpl).updatePublicDrop(publicDrop);
    }

    /**
     * @notice Update the allow list data for this nft contract on SeaDrop.
     *         Only the owner can use this function.
     *
     * @param seaDropImpl   The allowed SeaDrop contract.
     * @param allowListData The allow list data.
     */
    function updateAllowList(
        address seaDropImpl,
        AllowListData calldata allowListData
    ) external virtual override {
        // Ensure the sender is only the owner or contract itself.
        _onlyOwnerOrSelf();

        // Ensure the SeaDrop is allowed.
        _onlyAllowedSeaDrop(seaDropImpl);

        // Update the allow list on SeaDrop.
        ISeaDrop(seaDropImpl).updateAllowList(allowListData);
    }

    /**
     * @notice Update the token gated drop stage data for this nft contract
     *         on SeaDrop.
     *         Only the owner can use this function.
     *
     *         Note: If two INonFungibleSeaDropToken tokens are doing
     *         simultaneous token gated drop promotions for each other,
     *         they can be minted by the same actor until
     *         `maxTokenSupplyForStage` is reached. Please ensure the
     *         `allowedNftToken` is not running an active drop during the
     *         `dropStage` time period.
     *
     * @param seaDropImpl     The allowed SeaDrop contract.
     * @param allowedNftToken The allowed nft token.
     * @param dropStage       The token gated drop stage data.
     */
    function updateTokenGatedDrop(
        address seaDropImpl,
        address allowedNftToken,
        TokenGatedDropStage calldata dropStage
    ) external virtual override {
        // Ensure the sender is only the owner or contract itself.
        _onlyOwnerOrSelf();

        // Ensure the SeaDrop is allowed.
        _onlyAllowedSeaDrop(seaDropImpl);

        // Update the token gated drop stage.
        ISeaDrop(seaDropImpl).updateTokenGatedDrop(allowedNftToken, dropStage);
    }

    /**
     * @notice Update the drop URI for this nft contract on SeaDrop.
     *         Only the owner can use this function.
     *
     * @param seaDropImpl The allowed SeaDrop contract.
     * @param dropURI     The new drop URI.
     */
    function updateDropURI(address seaDropImpl, string calldata dropURI)
        external
        virtual
        override
    {
        // Ensure the sender is only the owner or contract itself.
        _onlyOwnerOrSelf();

        // Ensure the SeaDrop is allowed.
        _onlyAllowedSeaDrop(seaDropImpl);

        // Update the drop URI.
        ISeaDrop(seaDropImpl).updateDropURI(dropURI);
    }

    /**
     * @notice Update the creator payout address for this nft contract on
     *         SeaDrop.
     *         Only the owner can set the creator payout address.
     *
     * @param seaDropImpl   The allowed SeaDrop contract.
     * @param payoutAddress The new payout address.
     */
    function updateCreatorPayoutAddress(
        address seaDropImpl,
        address payoutAddress
    ) external {
        // Ensure the sender is only the owner or contract itself.
        _onlyOwnerOrSelf();

        // Ensure the SeaDrop is allowed.
        _onlyAllowedSeaDrop(seaDropImpl);

        // Update the creator payout address.
        ISeaDrop(seaDropImpl).updateCreatorPayoutAddress(payoutAddress);
    }

    /**
     * @notice Update the allowed fee recipient for this nft contract
     *         on SeaDrop.
     *         Only the owner can set the allowed fee recipient.
     *
     * @param seaDropImpl  The allowed SeaDrop contract.
     * @param feeRecipient The new fee recipient.
     * @param allowed      If the fee recipient is allowed.
     */
    function updateAllowedFeeRecipient(
        address seaDropImpl,
        address feeRecipient,
        bool allowed
    ) external virtual {
        // Ensure the sender is only the owner or contract itself.
        _onlyOwnerOrSelf();

        // Ensure the SeaDrop is allowed.
        _onlyAllowedSeaDrop(seaDropImpl);

        // Update the allowed fee recipient.
        ISeaDrop(seaDropImpl).updateAllowedFeeRecipient(feeRecipient, allowed);
    }

    /**
     * @notice Update the server-side signers for this nft contract
     *         on SeaDrop.
     *         Only the owner can use this function.
     *
     * @param seaDropImpl                The allowed SeaDrop contract.
     * @param signer                     The signer to update.
     * @param signedMintValidationParams Minimum and maximum parameters to
     *                                   enforce for signed mints.
     */
    function updateSignedMintValidationParams(
        address seaDropImpl,
        address signer,
        SignedMintValidationParams memory signedMintValidationParams
    ) external virtual override {
        // Ensure the sender is only the owner or contract itself.
        _onlyOwnerOrSelf();

        // Ensure the SeaDrop is allowed.
        _onlyAllowedSeaDrop(seaDropImpl);

        // Update the signer.
        ISeaDrop(seaDropImpl).updateSignedMintValidationParams(
            signer,
            signedMintValidationParams
        );
    }

    /**
     * @notice Update the allowed payers for this nft contract on SeaDrop.
     *         Only the owner can use this function.
     *
     * @param seaDropImpl The allowed SeaDrop contract.
     * @param payer       The payer to update.
     * @param allowed     Whether the payer is allowed.
     */
    function updatePayer(
        address seaDropImpl,
        address payer,
        bool allowed
    ) external virtual override {
        // Ensure the sender is only the owner or contract itself.
        _onlyOwnerOrSelf();

        // Ensure the SeaDrop is allowed.
        _onlyAllowedSeaDrop(seaDropImpl);

        // Update the payer.
        ISeaDrop(seaDropImpl).updatePayer(payer, allowed);
    }

    /**
     * @notice Returns a set of mint stats for the address.
     *         This assists SeaDrop in enforcing maxSupply,
     *         maxTotalMintableByWallet, and maxTokenSupplyForStage checks.
     *
     * @dev    NOTE: Implementing contracts should always update these numbers
     *         before transferring any tokens with _safeMint() to mitigate
     *         consequences of malicious onERC721Received() hooks.
     *
     * @param minter The minter address.
     */
    function getMintStats(address minter)
        external
        view
        override
        returns (
            uint256 minterNumMinted,
            uint256 currentTotalSupply,
            uint256 maxSupply
        )
    {
        minterNumMinted = _numberMinted(minter);
        currentTotalSupply = _totalMinted();
        maxSupply = _maxSupply;
    }

    /**
     * @notice Returns whether the interface is supported.
     *
     * @param interfaceId The interface id to check against.
     */
    function supportsInterface(bytes4 interfaceId)
        public
        view
        virtual
        override(IERC165, ERC721ContractMetadata)
        returns (bool)
    {
        return
            interfaceId == type(INonFungibleSeaDropToken).interfaceId ||
            interfaceId == type(ISeaDropTokenContractMetadata).interfaceId ||
            // ERC721ContractMetadata returns supportsInterface true for
            //     EIP-2981
            // ERC721A returns supportsInterface true for
            //     ERC165, ERC721, ERC721Metadata
            super.supportsInterface(interfaceId);
    }

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom}
     * for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     * - The `operator` must be allowed.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool approved)
        public
        override
        onlyAllowedOperatorApproval(operator)
    {
        super.setApprovalForAll(operator, approved);
    }

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the
     * zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     * - The `operator` mut be allowed.
     *
     * Emits an {Approval} event.
     */
    function approve(address operator, uint256 tokenId)
        public
        override
        onlyAllowedOperatorApproval(operator)
    {
        super.approve(operator, tokenId);
    }

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token
     * by either {approve} or {setApprovalForAll}.
     * - The operator must be allowed.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public override onlyAllowedOperator(from) {
        super.transferFrom(from, to, tokenId);
    }

    /**
     * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public override onlyAllowedOperator(from) {
        super.safeTransferFrom(from, to, tokenId);
    }

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token
     * by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement
     * {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     * - The operator must be allowed.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes memory data
    ) public override onlyAllowedOperator(from) {
        super.safeTransferFrom(from, to, tokenId, data);
    }

    /**
     * @notice Configure multiple properties at a time.
     *
     *         Note: The individual configure methods should be used
     *         to unset or reset any properties to zero, as this method
     *         will ignore zero-value properties in the config struct.
     *
     * @param config The configuration struct.
     */
    function multiConfigure(MultiConfigureStruct calldata config)
        external
        onlyOwner
    {
        if (config.maxSupply > 0) {
            this.setMaxSupply(config.maxSupply);
        }
        if (bytes(config.baseURI).length != 0) {
            this.setBaseURI(config.baseURI);
        }
        if (bytes(config.contractURI).length != 0) {
            this.setContractURI(config.contractURI);
        }
        if (
            _cast(config.publicDrop.startTime != 0) |
                _cast(config.publicDrop.endTime != 0) ==
            1
        ) {
            this.updatePublicDrop(config.seaDropImpl, config.publicDrop);
        }
        if (bytes(config.dropURI).length != 0) {
            this.updateDropURI(config.seaDropImpl, config.dropURI);
        }
        if (config.allowListData.merkleRoot != bytes32(0)) {
            this.updateAllowList(config.seaDropImpl, config.allowListData);
        }
        if (config.creatorPayoutAddress != address(0)) {
            this.updateCreatorPayoutAddress(
                config.seaDropImpl,
                config.creatorPayoutAddress
            );
        }
        if (config.provenanceHash != bytes32(0)) {
            this.setProvenanceHash(config.provenanceHash);
        }
        if (config.allowedFeeRecipients.length > 0) {
            for (uint256 i = 0; i < config.allowedFeeRecipients.length; ) {
                this.updateAllowedFeeRecipient(
                    config.seaDropImpl,
                    config.allowedFeeRecipients[i],
                    true
                );
                unchecked {
                    ++i;
                }
            }
        }
        if (config.disallowedFeeRecipients.length > 0) {
            for (uint256 i = 0; i < config.disallowedFeeRecipients.length; ) {
                this.updateAllowedFeeRecipient(
                    config.seaDropImpl,
                    config.disallowedFeeRecipients[i],
                    false
                );
                unchecked {
                    ++i;
                }
            }
        }
        if (config.allowedPayers.length > 0) {
            for (uint256 i = 0; i < config.allowedPayers.length; ) {
                this.updatePayer(
                    config.seaDropImpl,
                    config.allowedPayers[i],
                    true
                );
                unchecked {
                    ++i;
                }
            }
        }
        if (config.disallowedPayers.length > 0) {
            for (uint256 i = 0; i < config.disallowedPayers.length; ) {
                this.updatePayer(
                    config.seaDropImpl,
                    config.disallowedPayers[i],
                    false
                );
                unchecked {
                    ++i;
                }
            }
        }
        if (config.tokenGatedDropStages.length > 0) {
            if (
                config.tokenGatedDropStages.length !=
                config.tokenGatedAllowedNftTokens.length
            ) {
                revert TokenGatedMismatch();
            }
            for (uint256 i = 0; i < config.tokenGatedDropStages.length; ) {
                this.updateTokenGatedDrop(
                    config.seaDropImpl,
                    config.tokenGatedAllowedNftTokens[i],
                    config.tokenGatedDropStages[i]
                );
                unchecked {
                    ++i;
                }
            }
        }
        if (config.disallowedTokenGatedAllowedNftTokens.length > 0) {
            for (
                uint256 i = 0;
                i < config.disallowedTokenGatedAllowedNftTokens.length;

            ) {
                TokenGatedDropStage memory emptyStage;
                this.updateTokenGatedDrop(
                    config.seaDropImpl,
                    config.disallowedTokenGatedAllowedNftTokens[i],
                    emptyStage
                );
                unchecked {
                    ++i;
                }
            }
        }
        if (config.signedMintValidationParams.length > 0) {
            if (
                config.signedMintValidationParams.length !=
                config.signers.length
            ) {
                revert SignersMismatch();
            }
            for (
                uint256 i = 0;
                i < config.signedMintValidationParams.length;

            ) {
                this.updateSignedMintValidationParams(
                    config.seaDropImpl,
                    config.signers[i],
                    config.signedMintValidationParams[i]
                );
                unchecked {
                    ++i;
                }
            }
        }
        if (config.disallowedSigners.length > 0) {
            for (uint256 i = 0; i < config.disallowedSigners.length; ) {
                SignedMintValidationParams memory emptyParams;
                this.updateSignedMintValidationParams(
                    config.seaDropImpl,
                    config.disallowedSigners[i],
                    emptyParams
                );
                unchecked {
                    ++i;
                }
            }
        }
    }
}

Create your Matic ERC721 (NFT) smart contract

FAQ - Create an Matic ERC721 Token (NFT)

What is CryptoGenerator?

What do I need to get started?

Who owns the generated tokens?

Do I need a special address for ERC721 tokens?

What are ERC721 tokens?

How long does it takes to generate my ERC721 Token?

Do I need to know how to code?

How can I be sure that the generated contracts are safe?

Once my token is generated, how can I manage it?

Enumerable ERC721

Enumerable ERC721 with operation filter

ERC721 SeaDrop (OpenSea)