# Gas-Optimized NFT Contracts

Deploy production-ready ERC-721 & ERC-1155 contracts with built-in royalties, batch minting, and marketplace compatibility. Audited, optimized, secure.

2,000+ NFT contracts deployed  
ERC-721 & ERC-1155 certified  
OpenSea/Blur compatible  
47-point security audit

## Choose Your NFT Standard

ERC-721 for unique assets, ERC-1155 for gaming & multi-edition collections. Both fully audited and marketplace-ready.

### ERC-721

Non-Fungible Token Standard

Most Popular

- Each token is unique with individual metadata
- Perfect for art, PFPs, real-world assets
- Universal marketplace support

### ERC-1155

Multi-Token Standard

Gaming Optimized

- Mix of fungible & non-fungible tokens
- 50-90% gas savings on batch operations
- Ideal for games, events, multi-edition drops

### Production-Ready Contract

Gas Optimized

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

import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/ERC721URIStorage.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

contract OptimizedNFT is ERC721, ERC721URIStorage, Ownable {
    uint256 private _tokenIdCounter;
    
    // Royalty support (EIP-2981)
    uint96 private constant ROYALTY_FEE = 500; // 5%
    address private royaltyReceiver;

constructor() ERC721("MyNFT", "MNFT") Ownable(msg.sender) {
        royaltyReceiver = msg.sender;
    }

function safeMint(address to, string memory uri) public onlyOwner {
        uint256 tokenId = _tokenIdCounter++;
        _safeMint(to, tokenId);
        _setTokenURI(tokenId, uri);
    }
    
    // Gas-optimized batch minting
    function batchMint(address[] calldata recipients, string[] calldata uris) external onlyOwner {
        require(recipients.length == uris.length, "Length mismatch");
    }
```

### Standard Comparison

## ERC-721 vs ERC-1155

| Feature            | ERC-721                                              | ERC-1155                             |
|--------------------|-----------------------------------------------------|-------------------------------------|
| Use Case           | Unique items (art, collectibles, domain names)     | Gaming assets, tickets, multiple editions |
| Token Type         | Non-fungible (each token unique)                    | Semi-fungible (mix of unique & fungible) |
| Gas Efficiency     | Higher gas for batch operations                     | 50-90% gas savings on batch transfers |
| Metadata           | Individual URI per token                            | Shared URI with {id} substitution  |
| Marketplace Support | Universal (OpenSea, Rarible, etc.)                 | Growing support, gaming-focused     |
| Best For           | Art, PFPs, real-world assets                        | Games, events, multi-edition drops  |

## 47-Point Security Audit

Every NFT contract undergoes our comprehensive security review before deployment.

### Access Control

- Role-based permissions implemented
- Owner privileges clearly defined
- No unauthorized minting vectors
- Transfer restrictions validated

### Gas Optimization

- Batch operations use unchecked increments
- Storage slots optimized
- No redundant SLOAD operations
- Events emitted efficiently

### Metadata & Standards

- ERC-721/1155 interface compliance
- Metadata URI immutability options
- OpenSea/LooksRare compatibility
- EIP-2981 royalty standard

### Security

- Reentrancy protection on transfers
- Integer overflow prevention
- No centralization risks
- Pausability for emergencies

### Common NFT Vulnerabilities We Prevent

- Reentrancy attacks during transfers
- Unauthorized minting through access control bypasses
- Metadata manipulation after minting
- Gas griefing in batch operations
- Centralization risks with owner privileges

## Compatible With All Major Marketplaces

Your NFTs work seamlessly across the entire ecosystem.

### OpenSea

- ✓ Collection verification
- ✓ Royalty enforcement
- ✓ Bulk listing support

### Blur

- ✓ Advanced trading
- ✓ Zero fees compatible
- ✓ Bidding protocols

### LooksRare

- ✓ Staking integration
- ✓ Rewards compatible
- ✓ Instant metadata

## Enterprise-Grade NFT Contracts

Join companies who trust us with their Web3 infrastructure. Production-ready solutions deployed across 10+ blockchains.

### Smart Contract Frameworks

Industry-standard tools for NFT development

- Solidity
- OpenZeppelin
- Hardhat
- Foundry

### Testing & Security

Comprehensive security auditing tools

- Slither
- Mythril
- Echidna
- Certora

### Deployment Chains

Multi-chain NFT deployment support

- Ethereum
- Polygon
- Arbitrum
- Optimism
- Base