We architect and deploy production-grade smart contracts that are secure by design and cost-efficient to execute. Our process ensures your core business logic is flawlessly translated to code, with 99.9% uptime and zero critical vulnerabilities post-audit.
LABS
Services
StarkNet Cairo Auth Contract Audit
Expert security audits and formal verification for Cairo-based authentication smart contracts on StarkNet. We identify and mitigate ZK-rollup specific vulnerabilities before deployment.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, gas-optimized smart contracts built to your exact specifications.
- Custom Development:
ERC-20,ERC-721,ERC-1155, DeFi primitives, DAO tooling, and bespoke logic. - Security First: Built with
OpenZeppelinstandards, formal verification, and multi-stage audits. - Gas Optimization: Every contract is profiled and refined for minimal transaction costs.
- Full Lifecycle: From ideation and testing to deployment and maintenance on
EVM/L2networks.
Deploy a battle-tested, audited smart contract suite in as little as 2-4 weeks, accelerating your time-to-market while mitigating existential risk.
key-features-cards
PROVEN PROCESS
Our Audit Methodology for StarkNet
Our systematic approach to Cairo smart contract security combines deep protocol expertise with battle-tested methodologies to deliver actionable, high-confidence results.
01
Architecture & Specification Review
We analyze your contract's design against StarkNet's unique architecture, validating invariants, state transitions, and integration points with L1 and other L2s to ensure a sound foundation.
100%
Design Coverage
L1<>L2
Flow Analysis
02
Automated Vulnerability Scanning
We run proprietary and industry-standard static analysis tools (e.g., Slither for Cairo) to detect common vulnerabilities, arithmetic errors, and gas inefficiencies early in the audit cycle.
200+
Rule Checks
< 24h
Initial Report
03
Manual Code Review & Fuzzing
Our senior auditors perform line-by-line manual review, supplemented by property-based fuzzing to uncover edge cases, business logic flaws, and subtle race conditions that automated tools miss.
100%
Manual Review
10K+
Test Cases
04
Formal Verification Assistance
For critical financial logic, we assist in defining and verifying formal specifications using Cairo's native proof system, providing mathematical certainty for core contract properties.
Mathematical
Certainty
Core Logic
Focus
05
Comprehensive Reporting & Remediation
Receive a prioritized report with CVSS-scored findings, detailed exploit scenarios, and clear remediation guidance. We provide follow-up reviews to verify all fixes are correctly implemented.
Prioritized
CVSS Scores
Guaranteed
Re-Audit
06
Post-Audit Security Consultation
Beyond the report, we offer ongoing advisory on upgrade strategies, monitoring best practices, and threat modeling for future features, ensuring long-term security hygiene.
30-Day
Support Window
Advisory
Included
benefits
EXPERT SECURITY REVIEW
Why Choose Our StarkNet Audit Service
Our specialized Cairo smart contract audits are designed for CTOs and technical founders who need more than a checklist. We deliver actionable security insights and architectural guidance to protect your assets and ensure protocol integrity.
02
Proactive Threat Modeling
We go beyond line-by-line review to model complex attack vectors specific to L2s, including sequencer risks, L1-L2 bridge interactions, and fee token logic, delivering a comprehensive risk assessment.
03
Actionable, Developer-First Reports
Receive clear, prioritized findings with direct code snippets, exploit scenarios, and remediation examples. Our reports are built for your engineering team to implement fixes quickly and confidently.
04
Audited $500M+ in TVL
Our team has secured major protocols across DeFi, NFTs, and gaming on StarkNet. This battle-tested experience means we find the subtle, high-impact vulnerabilities others miss.
Choose Your Security Level
StarkNet Auth Audit Packages
Compare our structured audit packages for StarkNet Cairo authentication contracts, designed to match your project's stage and security requirements.
| Audit Feature | Starter | Professional | Enterprise |
|---|---|---|---|
Cairo 1.0 Smart Contract Audit | |||
Authentication Logic Review | Basic | Comprehensive | Comprehensive + Threat Modeling |
Gas Optimization Analysis | |||
Deployment & Configuration Support | |||
Formal Verification Report | |||
Remediation Support & Re-audit | 1 round | 2 rounds | Unlimited |
Critical Issue Response Time | 48h | 24h | 4h (SLA) |
Post-Audit Consultation | 1 session | 3 sessions | Ongoing |
Final Report Delivery | 5 business days | 10 business days | Custom |
Starting Price | $8,000 | $25,000 | Custom Quote |
process-walkthrough
CORE SERVICE
Smart Contract Development
Secure, audited smart contracts built for production by Web3-native engineers.
We architect and deploy custom Solidity/Rust smart contracts that are secure by design. Every contract undergoes formal verification and passes multiple independent audits before mainnet deployment. We implement battle-tested patterns from OpenZeppelin and Solmate to mitigate common vulnerabilities.
Deliver production-ready contracts in 2-4 weeks, from specification to audit completion.
- Token Systems: Custom
ERC-20,ERC-721, andERC-1155with advanced features like vesting, staking, and governance. - DeFi Primitives: Automated Market Makers (AMMs), lending/borrowing pools, yield aggregators, and derivative protocols.
- Infrastructure: Upgradeable proxies, cross-chain bridges, gas-optimized batch operations, and keeper/relayer networks.
- Full Lifecycle Support: Development, testing (
Hardhat/Foundry), deployment scripting, and post-launch monitoring.
Technical Due Diligence
StarkNet Audit FAQs
Get clear answers on our specialized audit process for StarkNet Cairo smart contracts, designed for CTOs and security-conscious founders.
We employ a four-phase audit methodology: 1) Architecture Review to assess system design and threat models. 2) Automated Analysis using Cairo-specific static analysis tools. 3) Manual Code Review by senior auditors with StarkNet expertise, focusing on logic flaws, reentrancy, and StarkNet-specific vulnerabilities. 4) Formal Verification for critical state transitions. This process has secured over $500M in TVL across 50+ projects.
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