We architect and deploy production-grade Solidity and Rust smart contracts for tokens, DeFi protocols, and NFT ecosystems. Our process delivers audit-ready code with a focus on gas efficiency and security-first design.
LABS
Services
StarkNet Cairo Contract Execution Path Review
Our expert analysis identifies and resolves inefficiencies in your Cairo programs, directly reducing L2 gas fees by optimizing proof complexity, storage steps, and contract interactions.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, audited smart contracts built to your exact specifications, from concept to mainnet deployment.
- Custom Logic: Build bespoke
ERC-20,ERC-721, or complex DeFi primitives like AMMs and lending pools. - Security Rigor: Development follows OpenZeppelin standards, with formal verification and pre-audit reviews.
- Full Lifecycle: From initial spec and testing to deployment and upgrade management via transparent proxies.
We deliver contracts that are secure by design, reducing post-launch vulnerabilities and costly exploits.
key-features-cards
EXPERT ANALYSIS
What Our Execution Path Review Delivers
Our StarkNet Cairo contract review goes beyond basic security audits. We analyze every execution path to deliver actionable insights that harden your protocol and accelerate your roadmap.
01
Gas Optimization Report
We identify and quantify gas inefficiencies across all contract functions, providing specific recommendations to reduce user transaction costs by up to 40% on critical paths.
Up to 40%
Gas Reduction
Line-by-line
Analysis
02
State Transition Analysis
We map and validate every possible state transition to prevent invalid states, reentrancy, and storage collisions, ensuring your contract logic is deterministic and safe.
100%
Path Coverage
Cairo VM
Context-Aware
03
StarkNet-Specific Vulnerabilities
Our review targets Cairo and StarkNet-specific risks, including storage pointer manipulation, L1→L2 message handling flaws, and sequencer trust assumptions.
10+
Unique Risks
OSSF Audited
Methodology
04
Performance Bottleneck Identification
We pinpoint computational and storage bottlenecks that could limit scalability or cause excessive L1 settlement fees, with benchmarks against network averages.
< 2 ms
Target Proof Time
Comparative
Benchmarks
05
Upgradeability & Governance Review
We assess proxy patterns, timelock implementations, and governance execution paths to ensure secure, non-breaking upgrades and prevent admin key risks.
Zero-downtime
Upgrade Safety
Multi-sig
Pattern Review
06
Actionable Remediation Plan
Receive a prioritized, developer-ready report with code snippets, test cases, and verification steps—not just a list of problems. We ensure fixes are integrated correctly.
< 72 hours
Report Delivery
P0-P3
Priority Ranking
benefits
TANGIBLE RESULTS
Business Outcomes: Lower Costs, Better Performance
Our StarkNet Cairo execution path review delivers more than just a report. It provides a clear, actionable roadmap to optimize your protocol's core logic for maximum efficiency and security, directly impacting your bottom line and user experience.
01
Optimized Gas Efficiency
We identify and refactor inefficient Cairo patterns, reducing your L1 settlement costs by up to 40%. Lower fees mean a more competitive protocol and higher user adoption.
Up to 40%
Gas Cost Reduction
L1-L2
Settlement Focus
02
Enhanced Throughput & Speed
By streamlining transaction execution paths and minimizing storage operations, we help increase your contract's transactions per second (TPS), reducing bottlenecks during peak load.
2-5x
TPS Improvement
Sub-second
Finality Target
03
Reduced Audit & Remediation Costs
Our pre-audit review surfaces critical logic flaws and security vulnerabilities early. This prevents costly re-audits and emergency patching post-deployment, saving significant time and budget.
50%+
Faster Audit Cycle
Critical
Issues Flagged Early
04
Future-Proof Architecture
We ensure your Cairo logic adheres to StarkNet best practices and is structured for easy upgrades. This prevents technical debt and reduces long-term maintenance costs as the ecosystem evolves.
StarkNet v0.13+
Compliance
Modular
Upgrade Path
Choose the right level of security assurance
Structured Review Tiers for Every Stage
Compare our comprehensive Cairo execution path review packages, designed to match your project's development phase and risk profile.
| Review Focus | Essential | Professional | Enterprise |
|---|---|---|---|
Cairo 1.0 Bytecode & Sierra Analysis | |||
Execution Path & Control Flow Review | |||
Gas Optimization & Fee Estimation | |||
Integration Testing with Starknet Testnet | |||
Formal Verification Report | |||
Remediation Support & Re-audit | 1 round | 2 rounds | Unlimited |
Response Time SLA | 72 business hours | 48 business hours | 24/7 on-call |
Final Report Delivery | 5 business days | 3 business days | 2 business days |
Team Expertise | Senior Auditor | Lead Auditor + Specialist | Dedicated Pod (3+ experts) |
Starting Investment | $8,000 | $25,000 | Custom Quote |
how-we-deliver
PROVEN FRAMEWORK
Our Cairo-Specific Review Methodology
We apply a structured, multi-layered approach to StarkNet Cairo contract reviews, designed to identify critical vulnerabilities and architectural inefficiencies that generic audits miss.
01
Cairo 1.0 & 2.0 Language Expertise
Deep review of Cairo-specific semantics, including ownership models, storage patterns, and the implications of StarkNet's asynchronous L2 architecture. We ensure your contracts leverage the latest language features for optimal security and performance.
100%
Coverage of Cairo 1.0/2.0
Zero
Uncaught Syntax Bugs
02
StarkNet System Call & Storage Analysis
Exhaustive testing of interactions with StarkNet OS syscalls (storage_read, emit_event, call_contract). We verify correct state management and prevent reentrancy and storage collision vulnerabilities unique to the sequencer model.
All
Syscalls Mapped
< 1ms
State Access Review
03
Gas & Fee Optimization Audit
Line-by-line analysis of L1→L2 message costs, storage write operations, and computation fees. We identify optimization opportunities that can reduce user transaction costs by 15-40% without compromising security.
15-40%
Avg. Fee Reduction
Proven
Gas Patterns
04
Integration & Composability Review
Validate secure interactions with key StarkNet ecosystem components: Account Abstraction (AA) protocols, oracles (Pragma, Chainlink), and cross-chain messaging (StarkGate). We ensure your contract operates flawlessly within the live network.
All Major
Integrations Tested
Zero
Interface Flaws
05
Formal Verification Readiness
We structure your code and provide annotated specifications to prepare for formal verification tools like Cairo's native prover. This future-proofs your contract and provides mathematical certainty for core invariants.
Full
Spec Documentation
Verifiable
Core Logic
06
Remediation & Best Practices Guide
Receive a prioritized action plan with line-numbered fixes, not just a list of issues. We include StarkNet-specific secure coding patterns and a final re-audit of critical patches to confirm resolution.
24-48h
Remediation Support
Guaranteed
Re-Review
StarkNet Cairo Contract Execution Path Review
Build vs. Buy: In-House Effort vs. Expert Review
Compare the resource investment and risk profile of building an internal security team versus partnering with Chainscore Labs for a comprehensive execution path review.
| Factor | Build In-House | Chainscore Expert Review |
|---|---|---|
Time to First Review | 3-6 months (hire & train) | 2-4 weeks |
Upfront Expertise Required | Senior Cairo Dev + Security Lead | None (we provide the team) |
Review Depth | Limited to team's experience | Multi-lens (logic, gas, Cairo-Cairo VM) |
Security Coverage | High risk of blind spots | Formal verification & adversarial testing |
Ongoing Maintenance Burden | Full-time team cost | Optional retainer for updates |
Total First-Year Cost | $250K - $500K+ | $30K - $80K |
Audit Report & Remediation | Self-managed | Detailed report with prioritized fixes |
Guarantee | None | Re-audit guarantee post-critical fixes |
StarkNet Cairo Contract Review
Frequently Asked Questions
Get clear answers about our specialized execution path review service for Cairo smart contracts on StarkNet.
An execution path review is a targeted security audit that maps and analyzes every possible transaction flow through your Cairo contract. On StarkNet, with its unique VM and potential for complex, state-dependent logic, this is critical. We identify edge cases, gas inefficiencies, and reentrancy risks specific to Cairo's execution model that standard audits often miss, preventing costly exploits in production.
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