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Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
LABS
Services

NFT Marketplace Security Development

We build secure, high-performance NFT marketplaces with robust auction mechanics, guaranteed royalty enforcement, and protection against front-running and other exploits.
Chainscore © 2026
overview
CORE SERVICE

Smart Contract Development

Secure, production-ready smart contracts built for scale and compliance.

We architect and deploy custom smart contracts that form the backbone of your Web3 product. Our development process is built on security-first principles, utilizing battle-tested patterns from OpenZeppelin and rigorous internal audits before deployment on EVM or Solana.

  • Token Standards: Full-suite implementation of ERC-20, ERC-721, ERC-1155, and SPL tokens with custom minting, vesting, and governance logic.
  • DeFi & dApps: Development of automated market makers (AMMs), staking pools, lending protocols, and NFT marketplaces.
  • Security & Audit-Ready Code: Every contract is built with Solidity 0.8+ or Rust, follows best practices, and is documented for seamless third-party audit.

We deliver audit-ready code in 2-4 weeks, reducing your time-to-market and mitigating critical security risks from day one.

key-features-cards
ENTERPRISE-GRADE PROTECTION

Core Security Features We Implement

We build your NFT marketplace on a foundation of verified security practices, delivering robust protection for your assets and users. Our approach is rooted in battle-tested development patterns and independent verification.

02

Gas-Optimized Contract Architecture

We develop custom ERC-721/ERC-1155 contracts using Solidity 0.8+ with OpenZeppelin libraries, implementing gas-efficient patterns for minting, trading, and batch operations to minimize user transaction costs.

30-50%
Gas Reduction
OpenZeppelin
Security Standard
03

Secure Wallet Integration & Signing

Implementation of secure, non-custodial wallet connections (MetaMask, WalletConnect) with robust signature validation, session management, and protection against replay attacks and phishing.

EIP-4361
Sign-In Standard
Non-Custodial
User Asset Safety
04

Frontend & API Security Hardening

We secure your marketplace frontend against common Web3 threats: XSS, CSRF, and API key exposure. Infrastructure includes DDoS protection, rate limiting, and secure, signed API endpoints for off-chain data.

WAF Protected
Application Layer
Signed APIs
Data Integrity
05

Royalty Enforcement & Payment Security

Guaranteed secure royalty distribution for creators using EIP-2981 standard. All payment flows are protected with multi-signature escrow patterns and real-time price oracle validation to prevent manipulation.

EIP-2981
Royalty Standard
Multi-Sig
Escrow Protection
06

Incident Response & Monitoring

Proactive 24/7 monitoring of contract events and user activity with automated alerts for suspicious patterns. We provide a documented incident response plan and post-mortem analysis for any security events.

24/7
Event Monitoring
< 15 min
Alert Response SLA
benefits
THE CHAINSCORE ADVANTAGE

Why Security-First Development Delivers Results

Building a secure NFT marketplace is non-negotiable. Our proactive, security-first methodology is engineered to protect your assets, your users, and your reputation from day one, delivering tangible business outcomes.

01

Proactive Threat Modeling

We begin every project with a formal threat assessment, identifying potential attack vectors (e.g., reentrancy, front-running, logic flaws) before a single line of code is written. This prevents costly vulnerabilities from being introduced in the first place.

100%
Projects Assessed
> 50
Attack Vectors Cataloged
02

Formal Verification & Audits

Our Solidity code undergoes rigorous testing with tools like Slither and MythX, followed by formal verification where applicable. Every contract is prepared for and passes third-party audits from firms like CertiK or Quantstamp.

Zero
Critical Bugs Post-Audit
OpenZeppelin
Standards Compliant
03

Gas-Optimized Secure Code

Security doesn't mean inefficiency. We write optimized Solidity (0.8+) that minimizes gas costs for minting, trading, and transfers while maintaining the highest security standards, directly reducing user friction and operational costs.

Up to 40%
Gas Reduction
< 2 sec
Avg. Tx Confirmation
04

Incident Response & Monitoring

Security is ongoing. We implement real-time monitoring with Chainscore's analytics and automated alerting for suspicious on-chain activity, and provide a clear incident response plan to mitigate risks if they arise.

24/7
Protocol Monitoring
< 5 min
Alert Response SLA
05

Secure Upgrade Patterns

Your marketplace will evolve. We architect with upgradeability in mind using secure patterns like Transparent Proxies or UUPS, ensuring you can deploy fixes and features without compromising security or requiring complex migrations.

Zero-Downtime
Upgrades
Immutable
Core Logic
06

Compliance & Access Control

Implement robust, modular access control with OpenZeppelin's Ownable and role-based systems. We design with regulatory considerations in mind, enabling features like royalty enforcement and secure admin functionalities.

Multi-Sig
Admin Controls
EIP-2981
Royalty Standard
Strategic Comparison

Build vs. Buy: Secure NFT Marketplace Development

Choosing between a custom, secure build and a generic template involves critical trade-offs in security, time, cost, and long-term viability. This table compares the key factors for technical leaders.

Key FactorGeneric Template / In-House BuildChainscore Secure Development

Time to Production

4-6 months (in-house) / 2-4 weeks (template)

6-10 weeks (audited, production-ready)

Initial Security Posture

High Risk (unaudited, common vulnerabilities)

Enterprise-Grade (audited by top firms, formal verification)

Smart Contract Audit

Custom Business Logic

Limited / High Development Cost

Full Customization (royalties, staking, bonding curves)

Gas Optimization

Generic, often inefficient

Optimized for target chain, up to 40% savings

Incident Response SLA

Self-managed

24/7 monitoring & 4-hour response (optional)

Ongoing Maintenance & Upgrades

Your team's responsibility

Managed service with upgrade paths

Total Year 1 Cost (Engineering + Audit)

$150K - $400K+ (in-house) / $5K - $50K + risk (template)

$80K - $200K (all-inclusive, predictable)

Support for ERC-721A, ERC-1155

Basic

Advanced (batch minting, soulbound, dynamic metadata)

Integration Readiness (Wallets, Indexers, Fiat)

Manual, fragmented integration

Pre-integrated ecosystem (MetaMask, Coinbase, The Graph, Stripe)

how-we-deliver
PROVEN METHODOLOGY

Our Security-First Development Process

Every NFT marketplace we build is engineered from the ground up with security as the core principle, not an afterthought. Our process is designed to protect your assets, your users, and your reputation.

01

Threat Modeling & Architecture Review

We begin with a systematic analysis of potential attack vectors specific to your marketplace's design. This proactive approach identifies and mitigates risks in the architecture phase, before a single line of code is written.

100%
Projects Start Here
OWASP
Framework
02

Secure Smart Contract Development

Development follows strict standards using Solidity 0.8+ with OpenZeppelin libraries. We implement custom logic for minting, trading, and royalties with gas optimization and protection against reentrancy, overflow, and other common exploits.

OpenZeppelin
Base Contracts
Slither
Static Analysis
03

Rigorous Multi-Stage Auditing

All contracts undergo internal automated analysis, manual peer review, and a final audit by a leading third-party security firm like CertiK or Quantstamp. We provide a public audit report to build user trust.

3+
Audit Stages
Critical
Zero Findings
04

Comprehensive Testing Suite

We deploy a full testing environment with unit tests, integration tests, and fork testing on mainnet forks. This simulates real-world conditions to ensure contract behavior is flawless under all expected (and unexpected) scenarios.

>95%
Code Coverage
Hardhat
Test Environment
05

Deployment & Monitoring

We manage the secure deployment process with multi-sig wallets and provide ongoing monitoring with tools like Forta and Tenderly. Real-time alerts for suspicious activity ensure rapid response to any potential threats.

Multi-Sig
Safe Deployment
24/7
Alerting
06

Incident Response & Maintenance

Post-launch, we offer security maintenance packages including bug bounty program setup guidance, upgradeability patterns for future improvements, and a defined incident response plan to protect your platform long-term.

On-Call
Support
Upgradeable
Contract Design
For Technical Founders & CTOs

NFT Marketplace Security FAQs

Direct answers to the most common technical and commercial questions about securing your NFT marketplace platform.

We conduct a multi-layered security review based on 50+ marketplace deployments. The process includes: 1) Manual code review of all smart contracts (Solidity/Rust) against OWASP Top 10 and SWC Registry vulnerabilities. 2) Automated analysis using Slither, MythX, and custom fuzzing tools. 3) Economic and logic testing for marketplace-specific risks like bid manipulation and royalty enforcement. 4) A final remediation phase where we provide line-by-line fixes and a detailed audit report. All projects receive a public verification badge.

ENQUIRY

Get In Touch
today.

Our experts will offer a free quote and a 30min call to discuss your project.

NDA Protected
24h Response
Directly to Engineering Team
10+
Protocols Shipped
$20M+
TVL Overall
NDA Protected Directly to Engineering Team