NFT Smart Contract Development (ERC-721 & ERC-1155)
We build professional NFT smart contracts based on ERC-721 and ERC-1155 standards, fully tailored to your business goals.
Key features
Whether it’s a classic digital art collection or a complex multi-token drop with a limited supply — we can implement your concept end-to-end. Our solutions support sales flows, auctions, lotteries, whitelist distribution, and seamless integration with popular marketplaces and Web3 wallets.
We deliver complete ERC-721 and ERC-1155 implementations, including core mint, transfer, approve functions, plus metadata and enumeration extensions for ERC-721. For ERC-1155, we provide batch operations and accurate multi-token balance accounting within a single contract.
Choose the best approach for your project: on-chain or off-chain metadata. We enable dynamic URI updates and integrate with popular storage solutions like IPFS, Arweave, or your own infrastructure.
We implement batch minting, lazy minting, bitmap accounting, and other proven patterns — saving up to 50% gas on large-scale operations and significantly lowering transaction costs.
We automate post-mint listing for OpenSea, Rarible, LooksRare, and other marketplaces. We also deliver a smooth UX for MetaMask, WalletConnect, Coinbase Wallet, and RainbowKit connections.
We build fixed-price sales, English and Dutch auctions with dynamic pricing, presales and whitelist access via Merkle trees, plus lotteries and randomized drops to gamify your collection.
We run static analysis (Slither, MythX), dynamic fuzz testing (Echidna, Foundry), formal verification for critical modules, and involve third-party auditors. We also set up CI/CD with automated tests and production monitoring.
technologies
Why clients choose us
We stay on top of modern patterns and best practices to ensure your NFT project is reliable, secure, and scalable.
From requirements and prototyping to deployment, frontend integration, marketplace tooling, and ongoing support — you get a complete product with no hidden steps.
We provide fast bug fixes, feature expansion, and iterative improvements as your audience grows and the market evolves.
development
stages
Preliminary analysis and requirements definition
Design and modeling
Smart contract architecture development and key components
Testing
Development and implementation
Business logic modeling and technical specification
Audit and security review
Deployment and integration
Monitoring and support
NFT smart contract development FAQ
What is the difference between ERC-721 and ERC-1155?
ERC-721 creates fully unique tokens — each NFT exists as a single copy. ERC-1155 lets one contract issue both unique and multi-edition tokens and transfer them in batches, which significantly saves gas. The choice of standard depends on your collection mechanics.
What does NFT contract development include?
We write the contract itself, set up the metadata structure, implement the mint mechanics — public, whitelist-based, or phased, add EIP-2981 royalties, cover the code with tests, and deploy it with explorer verification.
Where are NFT images and metadata stored?
Media files and JSON metadata are hosted on decentralized storage like IPFS or Arweave so they do not depend on a single server. We keep the metadata format compatible with OpenSea and other marketplaces.
How long does it take to launch an NFT collection?
A standard collection contract with tests and deployment is ready in 1–2 weeks. If you need custom mechanics — dynamic NFTs, phased reveal, or staking integration — we scope the timeline separately after clarifying the requirements.
How can mint fees be reduced for users?
We use the gas-optimized ERC-721A implementation for batch minting, ERC-1155 batch operations, and, where appropriate, deployment to L2 networks like Polygon or Base plus lazy mint mechanics, where the buyer pays gas at purchase time.
Will the collection be compatible with marketplaces?
Yes. We implement the standard interfaces, so tokens display and trade correctly on OpenSea, Blur, Rarible, and other platforms, and royalties are honored on marketplaces that support EIP-2981.