We architect and deploy custom smart contracts for DeFi, NFTs, and enterprise applications. Our code is built on Solidity 0.8+ with OpenZeppelin security patterns and undergoes rigorous multi-stage audits.
LABS
Services
Cairo StarkNet Contract Evolution
Future-proof your StarkNet applications with secure, structured upgrade patterns. We implement Cairo class replacement and state management strategies to ensure your L2 contracts can evolve without risk.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 experts.
- Full Lifecycle Development: From initial design and
Hardhat/Foundrytesting to mainnet deployment and monitoring. - Security-First: Formal verification, gas optimization, and comprehensive test suites for 99.9% uptime.
- Protocol Integration: Seamless compatibility with
ERC-20,ERC-721,ERC-1155, and cross-chain standards.
key-features-cards
PROXY PATTERNS & MODULAR ARCHITECTURE
Our Cairo Upgradeability Implementation
Future-proof your StarkNet applications with battle-tested, secure upgrade patterns. We implement modular, non-custodial upgradeability that puts you in control of your protocol's evolution.
01
Transparent Proxy Pattern
We deploy a lightweight proxy contract that delegates all calls to your core logic contract. This allows you to deploy new logic versions without migrating user data or changing the main contract address.
Client Value: Zero-downtime upgrades and a seamless user experience.
0
Data Migration
< 1 min
Upgrade Execution
02
UUPS (Universal Upgradeable Proxy Standard)
Implementation of the ERC-1967 standard for Cairo, where upgrade logic is embedded within the logic contract itself. This reduces proxy deployment gas costs and enforces a clear upgrade authorization flow.
Client Value: Lower initial gas fees and a self-contained, auditable upgrade mechanism.
~40%
Gas Savings
ERC-1967
Standard Compliant
03
Diamond Pattern (EIP-2535) for Cairo
For complex dApps, we implement a modular "Diamond" architecture. Your protocol becomes a facet of independent, upgradeable contracts, enabling granular updates and avoiding the 24KB contract size limit.
Client Value: Unlimited scalability and the ability to fix or enhance specific features without a full redeploy.
Unlimited
Contract Size
Granular
Update Control
04
Governance & Timelock Integration
Secure your upgrade process with multi-signature wallets or DAO governance. We integrate Timelock controllers to enforce a mandatory delay between upgrade proposal and execution, providing a security window for community review.
Client Value: Institutional-grade security and decentralized, transparent control over protocol changes.
Multi-sig/DAO
Authorization
24-72h
Security Delay
05
Storage Layout Preservation
Our upgrade process strictly follows EIP-1967 storage slot conventions. We ensure new logic contracts are compatible with existing storage layouts, preventing catastrophic data corruption during migrations.
Client Value: Risk-free upgrades that guarantee the integrity of all user balances and protocol state.
100%
Data Integrity
EIP-1967
Compliance
benefits
FOR PRODUCTION SCALE
Why Structured Contract Evolution Is Critical
Ad-hoc upgrades introduce risk and technical debt. A structured evolution framework ensures your StarkNet applications remain secure, composable, and future-proof as they scale.
01
Eliminate Upgrade Vulnerabilities
We implement a formal governance and upgrade path using Cairo's native proxy patterns, preventing unauthorized changes and eliminating single points of failure in your contract architecture.
Zero
Unplanned Downtime
100%
Governance Control
02
Maintain Protocol Composability
Our evolution strategy preserves critical storage layouts and external interfaces, ensuring seamless integration with existing DeFi protocols, oracles, and wallets on StarkNet.
Backward
Compatible
No
Integration Breaks
03
Future-Proof Your Codebase
We architect contracts with modular, upgradeable components, allowing you to integrate new Cairo features, STARK proofs, and L3 capabilities without costly rewrites.
80%
Code Reuse
Weeks
Saved on New Features
04
Streamline Audit & Verification
A clear, versioned upgrade history simplifies the security audit process for firms like Nethermind and enables formal verification of state transitions, reducing time-to-audit by over 40%.
40%
Faster Audits
Formal
Verification Ready
Strategic Decision Matrix
Build vs. Buy: StarkNet Contract Evolution
A clear comparison of the time, cost, and risk involved in developing and maintaining Cairo smart contracts internally versus partnering with Chainscore Labs.
| Factor | Build In-House | Partner with Chainscore |
|---|---|---|
Time to Production | 6-12 months | 4-8 weeks |
Initial Development Cost | $150K - $400K+ | $25K - $100K |
Security Posture | High Risk (unaudited, novel code) | Enterprise-Grade (audited, battle-tested patterns) |
Cairo & STARKs Expertise | Requires hiring/training specialists | Included (team of protocol experts) |
Ongoing Maintenance & Upgrades | Full internal team overhead | Optional SLA from $5K/month |
Time to First Audit | Adds 4-8 weeks post-development | Integrated into delivery timeline |
Total Cost of Ownership (Year 1) | $300K - $600K+ | $50K - $200K |
Guaranteed Uptime & Support | Your responsibility | 99.9% SLA with 24/7 monitoring available |
how-we-deliver
PREDICTABLE, SECURE, AND SCALABLE
Our Delivery Process for Cairo Upgrades
A structured, four-phase methodology designed to deliver robust, production-ready Starknet contracts with minimal disruption to your operations.
01
Phase 1: Discovery & Architecture
We conduct a deep technical audit of your existing Cairo 0.x contracts and business logic to define a precise migration and upgrade roadmap. This phase establishes clear scope, timelines, and success metrics.
1-2 weeks
Typical Duration
100%
Logic Coverage
02
Phase 2: Development & Optimization
Our certified Cairo developers rewrite and optimize your contracts for Cairo 1.0+, implementing best practices for gas efficiency, security patterns, and composability with the latest Starknet tooling.
Cairo 1.0+
Target Version
OpenZeppelin
Security Standard
03
Phase 3: Rigorous Testing & Auditing
Every line of code undergoes unit, integration, and stress testing with our proprietary Starknet test suites. Optional third-party audits with partners like Nethermind ensure enterprise-grade security.
>95%
Test Coverage
Zero Critical
Audit Findings Goal
04
Phase 4: Deployment & Monitoring
We manage the complete deployment lifecycle on Starknet mainnet or testnet, including contract verification, frontend integration support, and post-launch performance monitoring for 30 days.
99.9%
Uptime SLA
< 24h
Go-Live Support
Technical Deep Dive
Cairo Contract Evolution: Key Questions
Answers to the most common technical and commercial questions about our Cairo smart contract development and upgrade services for StarkNet.
A standard Cairo contract deployment, from specification to mainnet, takes 2-4 weeks. This includes requirements analysis, development, comprehensive testing, and audit preparation. Complex protocols like custom DEXs or lending markets can extend to 6-8 weeks. We provide a detailed project plan with weekly milestones at kickoff.
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