We architect and deploy custom smart contracts that form the backbone of your dApp. Our engineers specialize in Solidity, Rust, and Move, delivering secure logic for tokens, DeFi protocols, NFTs, and DAOs.
LABS
Services
Multi-Chain NFT Marketplace Development
We build unified NFT marketplace frontends that aggregate liquidity and listings from multiple blockchains, enabling users to trade across ecosystems from a single, secure interface.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3-native engineers.
- Security-First Development: Code built with
OpenZeppelinstandards and subjected to multiple audit layers before mainnet deployment. - Gas Optimization: Contracts engineered for minimum execution cost, critical for user adoption and protocol economics.
- Full Lifecycle Support: From initial spec and development to mainnet deployment and ongoing upgrade management via proxies.
We deliver audited, gas-optimized contracts in 2-4 weeks, enabling you to launch your core product with confidence and speed.
key-features-cards
BUILT FOR SCALE
Core Technical Capabilities
Our engineering team delivers battle-tested infrastructure and smart contracts, ensuring your marketplace is secure, performant, and ready for multi-chain growth from day one.
01
Multi-Chain Smart Contract Architecture
Deploy a unified marketplace core with chain-specific adapters for Ethereum, Polygon, Solana, and other L2s. We build with upgradability patterns and gas optimization in mind.
5+
Supported Chains
ERC-721A
Gas-Optimized
02
Secure & Audited Contract Suites
Production-ready contracts for minting, trading, and staking, built on OpenZeppelin standards and verified by third-party auditors like CertiK or Hacken.
100%
Audit Coverage
0 Critical
Vulnerabilities
03
High-Performance Indexing & APIs
Real-time subgraph indexing and REST/GraphQL APIs for collections, listings, and user profiles. Achieve sub-second query responses under load.
< 500ms
API Latency
99.9%
Uptime SLA
04
Enterprise-Grade Wallet Integration
Seamless support for MetaMask, WalletConnect, Phantom, and embedded MPC wallets. Includes secure transaction signing and session management.
20+
Wallet Providers
SOC 2
Compliant
05
Scalable Cloud Infrastructure
Automated deployment on AWS/GCP with containerized microservices, load balancing, and DDoS protection. Infrastructure-as-Code for reliability.
Auto-scaling
Architecture
< 2 weeks
Deployment
benefits
DELIVERABLES & METRICS
Business Outcomes You Can Measure
We build with clear, measurable results. Our multi-chain NFT marketplace development delivers specific technical and commercial outcomes, backed by verifiable performance and security standards.
01
Multi-Chain Deployment
Launch on Ethereum, Solana, and Polygon simultaneously with a unified frontend. We handle the cross-chain bridging, wallet connections, and gas optimization for each protocol.
3+
Chains Supported
< 2 weeks
Chain Integration
02
Enterprise-Grade Security
Smart contracts built with OpenZeppelin libraries and audited by third-party firms like CertiK or Quantstamp. Includes formal verification for critical minting and trading logic.
100%
Audit Coverage
0 Critical
Vulnerabilities
03
Gas-Optimized Transactions
Custom contract architecture reduces minting and trading fees by up to 40% versus standard implementations through batch processing and efficient storage patterns.
~40%
Gas Reduction
< 1 sec
Tx Confirmation
04
Scalable Infrastructure
Deploy with a 99.9% uptime SLA, backed by managed node services (Alchemy, QuickNode) and IPFS pinning for immutable metadata storage.
99.9%
Uptime SLA
< 50ms
API Latency
05
Full-Stack Integration
Complete marketplace with admin dashboard, royalty management, and analytics. Integrates with existing payment rails and KYC providers in under 3 weeks.
3 weeks
Time to Integrate
10+
Built-in Features
06
Ongoing Protocol Support
Future-proof your marketplace with upgradeable contracts and dedicated support for new token standards (ERC-4907, ERC-6551) and chain deployments.
24/7
Dev Support
48h
Response SLA
Structured Roadmap to Launch
Phased Development Packages
Choose the development package that aligns with your project's scale, timeline, and operational needs. Each tier includes all features from the previous level.
| Core Deliverables | Launchpad | Growth | Scale |
|---|---|---|---|
Multi-Chain Smart Contracts (EVM) | |||
Standard NFT Marketplace UI | |||
Custom Tokenomics & Royalty Engine | |||
Advanced Features (Lazy Minting, Bundles) | |||
Cross-Chain Bridge Integration | |||
Smart Contract Security Audit | Basic Review | Full Audit + Report | Full Audit + Continuous Monitoring |
Deployment & DevOps Support | 2 Chains | Up to 5 Chains | Unlimited Chains |
Post-Launch Support SLA | 30 Days | 6 Months | 12 Months + Priority 24/7 |
Estimated Timeline | 6-8 Weeks | 10-14 Weeks | 16+ Weeks |
Starting Investment | $50K - $80K | $120K - $200K | Custom Quote |
how-we-deliver
A PROVEN FRAMEWORK
Our Multi-Chain NFT Marketplace Development Process
From initial concept to global launch, our structured, security-first process ensures your marketplace is built for scale, security, and success. We deliver a production-ready platform, not just code.
01
Discovery & Architecture Design
We conduct a technical deep-dive to define your core requirements, token standards (ERC-721, ERC-1155), and optimal multi-chain architecture. We deliver a detailed technical specification and project roadmap.
Key Deliverables: Technical Spec, Chain Selection Matrix, Project Timeline.
1-2 weeks
Specification Phase
3+ chains
Architecture Review
02
Smart Contract Development & Auditing
Our certified developers write gas-optimized, secure smart contracts for minting, trading, and royalties using Solidity 0.8+ and OpenZeppelin libraries. Every contract undergoes rigorous internal review before external audit.
Security First: Built with reentrancy and overflow guards as standard.
100%
OpenZeppelin Base
2+ Audits
Security Layers
03
Frontend & Backend Integration
We build a responsive, user-friendly frontend (React/Next.js) integrated with your smart contracts via Ethers.js/Wagmi. Our scalable backend handles indexing, metadata management, and secure wallet connectivity across all supported chains.
Outcome: A seamless, full-stack application ready for user testing.
< 2 sec
TX Confirmation UI
WalletConnect v2
Wallet Standard
04
Multi-Chain Deployment & Bridge Integration
We deploy and configure your marketplace contracts on your selected networks (Ethereum, Polygon, Arbitrum, etc.). We integrate secure, audited cross-chain bridges (LayerZero, Axelar) or messaging protocols for native multi-chain asset movement.
Deliverable: Live contracts on mainnet and testnets.
24-48 hrs
Per Chain Deployment
Zero-Downtime
Upgrade Strategy
06
Launch Support & DevOps
We manage the production launch, configure monitoring (block explorers, health dashboards), and establish incident response protocols. We provide ongoing DevOps support with 99.9% uptime SLA for the core infrastructure.
Result: Your team receives a fully operational, monitored platform.
99.9%
Infra Uptime SLA
24/7
Launch Monitoring
security
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for your specific business logic and audited for deployment.
We architect and deploy custom Solidity/Rust smart contracts that form the backbone of your application. Our focus is on security-first development, utilizing established patterns from OpenZeppelin and rigorous internal review processes before any external audit.
From a simple token (
ERC-20,ERC-721) to a complex DeFi protocol, we translate your requirements into gas-efficient, upgradeable, and secure on-chain logic.
- End-to-End Ownership: Full development lifecycle from specification and implementation to testing (
Hardhat/Foundry) and mainnet deployment. - Audit-Ready Code: We deliver contracts that are structured, documented, and pre-vetted to streamline third-party audits from firms like CertiK or Quantstamp.
- Post-Launch Support: Includes verification, initial monitoring, and guidance on upgrade paths via proxies (
TransparentProxy,UUPS).
Multi-Chain NFT Marketplace Development
Frequently Asked Questions
Get clear answers on timelines, costs, and technical details for launching your cross-chain NFT platform.
A production-ready MVP for a custom multi-chain NFT marketplace typically deploys in 6-10 weeks. This includes smart contract development, frontend integration, and security audits. For a white-label solution with moderate customization, timelines can be as short as 2-4 weeks. The exact duration depends on the number of blockchains integrated, custom features (like auctions or fractionalization), and the complexity of your token standards (ERC-721, ERC-1155).
ENQUIRY
Get In Touch
today.
Our experts will offer a free quote and a 30min call to discuss your project.
NDA Protected
Confidentiality24h Response
Time to ValueDirectly to Engineering Team
No Sales Fluff10+
Protocols Shipped
$20M+
TVL Overall