We architect and deploy custom smart contracts that power your core business logic—from tokenomics and DeFi protocols to NFT marketplaces and DAOs. Our code is built for gas efficiency, upgradability, and long-term security.
LABS
Services
Cairo Smart Contract Audit for StarkNet
Security review for StarkNet applications written in Cairo, with a focus on ZK-proof system integration, L1-L2 messaging, and state transition correctness.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
- Full Lifecycle Development: Strategy, architecture,
Solidity/Rustdevelopment, testing, and mainnet deployment. - Security-First: Rigorous audits using OpenZeppelin patterns, formal verification, and automated testing suites.
- Compliance Ready: Built-in support for
ERC-20,ERC-721,ERC-1155, and custom standards with regulatory considerations.
Deliver a secure, audited, and fully functional smart contract system in as little as 4-6 weeks, reducing your technical risk and accelerating your go-to-market.
key-features-cards
COMPREHENSIVE SECURITY REVIEW
What Our Cairo Audit Covers
Our specialized audit process for Cairo 1.0 and 2.0 smart contracts delivers actionable security insights and gas optimization recommendations, reducing critical vulnerabilities before mainnet deployment.
02
StarkNet-Specific Logic Review
Expert analysis of L1-L2 messaging, storage variable handling, and account abstraction patterns to ensure correct interaction with the StarkNet sequencer and prover.
03
Gas & Fee Optimization
Detailed profiling of Cairo bytecode to identify and remediate high-computation steps, reducing L1 settlement costs and improving transaction throughput.
04
Architecture & Design Assessment
Review of contract architecture, upgradeability patterns (using proxies), and dependency management against established Cairo development best practices.
05
Compliance & Standard Adherence
Verification against relevant token standards (ERC-20/721 on StarkNet) and security guidelines from OpenZeppelin and the StarkWare ecosystem.
06
Final Report & Remediation Support
Delivery of a prioritized vulnerability report with PoC exploits and direct consultation to guide your team through critical fixes.
benefits
EXPERTISE YOU CAN TRUST
Why Choose Chainscore for Your StarkNet Audit
Our specialized Cairo audit team delivers more than a checklist. We provide actionable security insights and architectural guidance to fortify your StarkNet application.
01
Deep Cairo & StarkNet Expertise
Our auditors are active contributors to the StarkNet ecosystem, with deep knowledge of Cairo's unique architecture, STARK proofs, and common vulnerability patterns specific to ZK-rollups.
50+
Cairo Contracts Audited
3+ Years
StarkNet Experience
02
Comprehensive Security Methodology
We go beyond automated tools with manual review, threat modeling, and business logic analysis. Our process covers reentrancy, overflow/underflow, access control, and StarkNet-specific state inconsistencies.
100%
Manual Code Review
10+
Check Categories
03
Actionable Developer Reports
Receive clear, prioritized findings with severity ratings, exploit scenarios, and direct code fixes. Our reports are designed for your engineering team to implement corrections efficiently.
< 48h
Report Delivery
P0-P4
Severity Grading
04
Gas & Performance Optimization
We identify inefficient Cairo patterns and storage usage that drive up L1 settlement costs. Our recommendations can reduce your transaction fees and improve contract scalability.
Up to 40%
Gas Savings
Storage Audit
Included
05
Post-Audit Support & Verification
We provide a re-audit of critical fixes and remain available for consultation throughout your deployment. Ensure vulnerabilities are fully resolved before going live.
2 Rounds
Free Revisions
30 Days
Support Window
06
Trusted by Leading Protocols
We secure the infrastructure for high-value DeFi, NFT, and gaming projects on StarkNet. Our audit seal is recognized by investors and users as a mark of security diligence.
$100M+
TVL Protected
Enterprise
Clients Served
Transparent Scope & Deliverables
Cairo Smart Contract Audit Packages
Choose the audit package that matches your StarkNet project's stage and security requirements. All audits include a comprehensive report and remediation support.
| Audit Deliverables | Starter | Professional | Enterprise |
|---|---|---|---|
Comprehensive Cairo Code Review | |||
Automated Vulnerability Scanning | |||
Manual In-Depth Security Analysis | Limited | Full | Full + Advanced |
Gas Optimization Review | |||
Formal Verification (Where Applicable) | |||
Remediation Support & Re-audit | 1 round | 2 rounds | Unlimited |
Final Security Report & Certificate | |||
Response Time for Critical Issues | 48h | 24h | 4h |
Post-Audit Consultation Call | 1 hour | 2 hours | Ongoing |
Typical Project Scope | ≤ 3 Contracts | ≤ 10 Contracts | Custom |
Starting Price (USD) | $8,000 | $25,000 | Custom Quote |
how-we-deliver
PROVEN PROCESS
Our Audit Methodology
Our systematic approach to Cairo smart contract security combines deep StarkNet expertise with rigorous testing to deliver actionable, developer-friendly reports.
01
Architecture & Design Review
We analyze your contract's architecture for systemic risks, focusing on StarkNet-specific patterns like storage layout, L1-L2 messaging, and fee model security. This prevents costly design flaws before line-by-line review.
30%
Issues Found Early
Cairo 1.0+
Expertise
02
Automated Vulnerability Scanning
We run proprietary and industry-standard static analysis tools (like Slither for Cairo) to detect common vulnerabilities, arithmetic errors, and gas inefficiencies, providing a comprehensive initial scan.
1000+
Checks
O(1)
Complexity Analysis
03
Manual Code Review
Our senior auditors perform a meticulous, line-by-line manual review of the Cairo bytecode and source, identifying logic flaws, business logic errors, and subtle attack vectors automated tools miss.
2 Sr. Auditors
Per Project
100%
Code Coverage
05
Report & Remediation
Receive a prioritized, actionable report with clear severity ratings (Critical to Informational), proof-of-concept exploits for critical issues, and direct guidance for fixes. We support you through remediation.
< 72h
Report Delivery
CVSS 3.0
Scoring
06
Verification & Final Sign-off
After you implement fixes, we conduct a final verification audit on the updated code to ensure all vulnerabilities are resolved, providing a final attestation and security seal for your project.
100%
Re-audit Coverage
Public Seal
Verification
security
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 specialists.
We architect and deploy custom Solidity/Rust smart contracts that form the immutable backbone of your dApp. Our process is built for security and speed, delivering a 2-week MVP or a fully audited mainnet deployment.
From tokenomics to governance, we translate your business logic into bulletproof on-chain code.
- Security-First Development: All contracts follow
OpenZeppelinstandards and undergo internal + third-party audits before mainnet launch. - Protocol Specialization:
ERC-20,ERC-721,ERC-1155, custom staking, vesting, and DAO governance modules. - Full Lifecycle Support: Development, testing (
Hardhat/Foundry), deployment, verification, and ongoing maintenance.
Cairo Smart Contract Audits
Frequently Asked Questions
Get clear answers about our security review process for StarkNet applications.
We employ a multi-layered, manual-first methodology tailored for Cairo and StarkNet's unique architecture. Our process includes: 1) Architecture Review for system design and logic flaws, 2) In-depth Manual Code Review by senior auditors specializing in Cairo, 3) Automated Analysis using custom tools for StarkNet bytecode, and 4) Formal Verification for critical state transitions. We focus on Cairo-specific risks like storage layout, L1-L2 messaging, and fee token logic.
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