We architect and deploy custom smart contracts that are secure, gas-optimized, and upgradeable. Our development process is built on a foundation of OpenZeppelin standards and comprehensive audit readiness.
LABS
Services
Legacy Contract Upgrade Modernization
A systematic service to analyze, strategize, and execute the migration of outdated, non-upgradeable smart contracts to modern, upgradeable architectures without disrupting your live application.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3-native engineers.
- Token Systems:
ERC-20,ERC-721,ERC-1155with custom minting, vesting, and governance logic. - DeFi Protocols: Automated market makers (AMMs), lending/borrowing pools, staking, and yield aggregators.
- Enterprise Logic: Multi-signature wallets, access control, and complex business rule automation on-chain.
We deliver a fully tested, documented, and deployable contract suite in as little as 2-4 weeks, accelerating your product's time-to-market.
Our engineers specialize in Solidity 0.8+ and Vyper, implementing best practices for security and efficiency. Every contract undergoes rigorous unit and integration testing using Hardhat or Foundry to ensure reliability before mainnet deployment.
key-features-cards
STRUCTURED MODERNIZATION
Our End-to-End Upgrade Process
A proven, security-first methodology for migrating legacy smart contracts to modern, gas-efficient, and secure standards. We handle the entire lifecycle from audit to deployment.
02
Architecture & Migration Planning
Design of a future-proof upgrade architecture (UUPS/Transparent Proxy) with a detailed migration plan, including state migration strategies, dependency updates, and rollback procedures.
Zero-Downtime
Migration
< 72 hours
Plan Delivery
03
Implementation & Gas Optimization
Development of the upgraded contract suite using Solidity 0.8+ and OpenZeppelin libraries, with a focus on reducing gas costs by 30-60% through optimized storage and execution patterns.
30-60%
Gas Reduction
OpenZeppelin
Standards
05
Staged Deployment & Verification
Managed deployment to testnet and mainnet using secure multi-sig workflows. Full verification of contract source code on Etherscan and comprehensive post-deployment monitoring setup.
Multi-Sig
Deployment
100%
Source Verified
06
Post-Launch Support & Monitoring
Provision of 30-day post-launch support, real-time monitoring dashboards for contract health, and documentation for future upgrade paths handled by your team.
24/7
Monitoring
30 Days
Included Support
benefits
FROM LEGACY TO LEADING
Business Outcomes of a Modern Architecture
Modernizing your smart contract architecture delivers measurable improvements in security, performance, and operational efficiency. We deliver concrete outcomes that directly impact your bottom line and competitive edge.
01
Enhanced Security Posture
Upgrade to audited, battle-tested contract patterns (OpenZeppelin v5) and modular designs that reduce attack surface. We implement formal verification and continuous monitoring to prevent exploits before they happen.
100%
Audit Coverage
Zero
Critical Vulnerabilities
02
Reduced Gas Costs & Complexity
Refactor inefficient logic and storage patterns. Our upgrades typically achieve 30-70% gas savings on core functions, directly lowering user transaction fees and improving network scalability.
30-70%
Gas Reduction
>50%
Code Complexity
03
Faster Feature Deployment
A modular, upgradeable architecture enables rapid iteration. Deploy new features, integrations (e.g., Chainlink, LayerZero), or protocol parameters in days, not months, without full redeployment risks.
< 1 week
Feature Rollout
Zero Downtime
Live Upgrades
04
Future-Proof Flexibility
Implement proxy patterns (Transparent/UUPS) and standardized interfaces (EIP-2535 Diamonds) for seamless, permissioned upgrades. Adapt to new standards (ERC-7579) and scaling solutions (L2s, Alt DA) without fragmentation.
100%
Backward Compatibility
Multi-Chain
Deployment Ready
05
Improved Developer Experience
Clean, documented codebases with comprehensive testing suites (Foundry, Hardhat) and CI/CD pipelines. Reduce onboarding time for new engineers and minimize regression risks during maintenance.
80%
Faster Onboarding
>95%
Test Coverage
06
Regulatory & Compliance Readiness
Architect for transparency with on-chain event logging, permissioned functions, and modular compliance hooks. Prepare for audits and regulatory requirements without compromising core protocol logic.
Full
Audit Trail
Modular
Compliance Layer
Risk & Efficiency Analysis
DIY Migration vs. Partnering with Chainscore
A detailed comparison of the time, cost, and risk profile of upgrading legacy smart contracts in-house versus with our expert team.
| Key Factor | DIY In-House Migration | Partnering with Chainscore |
|---|---|---|
Time to Production | 4-9 months | 4-8 weeks |
Initial Security Audit | Optional / External Vendor | Included (CertiK, OpenZeppelin) |
Team Composition | Requires Senior Solidity & Security Engineers | Dedicated Team Provided |
Post-Migration Support | Your Responsibility | 24/7 Monitoring & Incident Response SLA |
Total Year 1 Cost (Engineering + Tools) | $250K - $600K+ | $75K - $200K |
Guarantee on Code Quality & Security | None | Formal Audit Report & Guarantee |
Risk of Downtime / Exploit | High | Mitigated via Formal Verification |
Access to Latest Patterns (ERC-7579, 4337) | Research & Implementation Required | Built-in Expertise & Templates |
how-we-deliver
PROVEN FRAMEWORK
Our Methodology: Risk-Averse Execution
We modernize your legacy smart contracts with a systematic, security-first approach that eliminates downtime and protects your assets. Our battle-tested process ensures a seamless transition with zero value loss.
security-approach
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for your specific business logic.
We architect and deploy custom smart contracts that are gas-optimized, audit-ready, and secure by design. Our development process ensures your core business logic is translated into reliable on-chain code.
- Token Systems: Custom
ERC-20,ERC-721,ERC-1155, and multi-chain token standards. - DeFi Protocols: Automated market makers (AMMs), lending/borrowing pools, staking, and yield strategies.
- Enterprise Logic: Multi-signature wallets, access control, DAO governance, and automated workflows.
- Security First: Built with OpenZeppelin libraries, following Solidity 0.8+ best practices and formal verification patterns.
We deliver a fully tested, documented, and deployable contract suite in 2-4 weeks for a standard MVP, with a clear path to third-party audit.
Legacy Contract Upgrade Modernization
Frequently Asked Questions
Get clear answers on our process, security, and timelines for modernizing your legacy smart contracts.
Our 4-phase process is designed for safety and minimal disruption: 1. Audit & Analysis: We perform a comprehensive security audit and dependency analysis of your existing codebase. 2. Architecture & Migration Plan: We design the new architecture, create a detailed migration strategy, and define rollback procedures. 3. Development & Testing: We develop the upgraded contracts using modern standards (Solidity 0.8+, OpenZeppelin) and run them through unit, integration, and fuzz testing. 4. Deployment & Verification: We execute the migration on a testnet, conduct a final security review, and deploy to mainnet with real-time monitoring. We've successfully executed this process on over 50 protocol upgrades.
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