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Free 30-min Web3 Consultation
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Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
LABS
Services

Cairo Contract Fuzz Analysis

Specialized fuzzing for StarkNet's Cairo language. We systematically test your contract's edge cases, focusing on ZK-circuit logic, storage interactions, and L1<>L2 messaging vulnerabilities.
Chainscore © 2026
overview
CORE INFRASTRUCTURE

Custom Smart Contract Development

Secure, audited smart contracts tailored to your specific business logic and use case.

We architect and deploy production-grade Solidity and Rust smart contracts for DeFi, NFTs, and enterprise applications. Our development process integrates OpenZeppelin standards and formal verification from day one to ensure security and compliance.

  • From Specification to Mainnet: We handle the full lifecycle, from initial design and Foundry/Hardhat testing to deployment and on-chain monitoring.
  • Proven Security: Every contract undergoes rigorous audits by internal and third-party experts, with a track record of zero critical vulnerabilities in production.
  • Gas Optimization: We specialize in writing highly efficient code, reducing transaction costs by up to 40% for high-frequency operations.

Deploy a secure, audited MVP in as little as 2-3 weeks, with full ownership of the source code and comprehensive documentation.

key-features-cards
TAILORED FOR STARKNET

Our Cairo-Specific Fuzzing Capabilities

We go beyond generic smart contract testing with specialized fuzzing engines designed for the unique architecture of Cairo and Starknet. Our approach identifies critical vulnerabilities that standard tools miss, ensuring your protocol's security and reliability from day one.

04

Custom Property & Invariant Definition

We work with your team to define and test critical business logic properties (e.g., "total supply is constant", "user balance never negative"). Our fuzzers automatically generate millions of transactions to prove or disprove these invariants.

05

L1 <> L2 Bridging Logic Fuzzing

Specialized test suites for messaging contracts and bridge components. We fuzz deposit/withdrawal flows, message cancellation, and reorg resistance to ensure asset security between Ethereum and Starknet.

06

Gas & Computational Complexity Analysis

Beyond security, our fuzzing identifies gas-guzzling code paths and computationally intensive functions under heavy load. We provide actionable optimization reports to reduce user costs and prevent out-of-gas reverts.

benefits
BEYOND BASIC TESTING

Why Professional Fuzzing is a Strategic Investment

Automated fuzzing is a start, but professional-grade analysis delivers the security depth and business continuity required for production DeFi and Web3 applications. Here's how our Cairo contract fuzzing service provides a measurable return on investment.

01

Prevent Critical Vulnerabilities Pre-Launch

Our systematic fuzzing uncovers edge-case bugs, arithmetic overflows, and state inconsistencies that unit tests miss, preventing exploits that could lead to catastrophic fund loss. We target the specific attack vectors relevant to your protocol's logic.

>95%
Critical Bug Detection
Pre-Production
Vulnerability Phase
02

Reduce Security Audit Costs & Time

Delivering a professionally fuzzed codebase to your audit firm significantly reduces their manual review time. This translates to lower audit fees and a faster path to a clean security report, accelerating your go-to-market timeline.

30-50%
Audit Time Reduction
Weeks Saved
Time-to-Market
03

Enhance Protocol Resilience & Uptime

By stress-testing contracts under millions of randomized inputs and simulated network conditions, we ensure your protocol remains stable and functional during volatile market events, protecting your platform's reputation and user trust.

99.9%
Target Uptime SLA
Load Tested
Under Peak Conditions
04

Future-Proof with Continuous Security

Our fuzzing harnesses and test suites become part of your codebase. Integrate them into your CI/CD pipeline to automatically catch regressions with every code update, maintaining a high security standard throughout your product's lifecycle.

Automated
CI/CD Integration
Zero Regressions
Development Goal
Cairo Smart Contract Fuzzing Packages

Deliverables and Engagement Timeline

Choose the right level of security analysis for your Starknet project, from a single audit to a comprehensive security partnership.

DeliverableStarter AuditProfessional SuiteEnterprise Security

Automated Fuzz Testing

Manual Code Review

Comprehensive Audit Report

Remediation Support

1 round

Unlimited rounds

Unlimited + priority

Time to Report

10 business days

7 business days

5 business days

Post-Audit Consultation

1 hour

4 hours

Priority Support SLA

Business hours

24/7 with 4h response

Integration with CI/CD

Custom Fuzzing Harness Creation

Engagement Model

One-time project

Retainer (3 months)

Annual Security Partner

Typical Investment

$8K - $15K

$25K - $60K

Custom Quote

how-we-deliver
PROVEN PROCESS

Our Methodology for Maximum Coverage

Our systematic Cairo contract fuzzing approach combines automated discovery with expert analysis to identify critical vulnerabilities others miss, ensuring your Starknet applications are secure before mainnet deployment.

Infrastructure Decision Matrix

Build vs. Buy: In-House vs. Chainscore Fuzzing

A detailed comparison of the time, cost, and risk involved in developing a Cairo fuzzing framework internally versus leveraging Chainscore's production-ready service.

FactorBuild In-HouseChainscore Fuzzing

Time to Production

6-9 months

2-4 weeks

Initial Development Cost

$150K - $300K+

$25K - $75K

Ongoing Maintenance (Annual)

$80K - $150K

$15K - $50K (SLA)

Coverage Depth

Customizable but limited by tooling

95% branch coverage with custom mutators

Security Expertise Required

Senior Cairo/StarkNet Dev + Security Researcher

Included (Team of 5+ Auditors)

Integration Complexity

High (CI/CD, monitoring, reporting)

Low (API-first, pre-built plugins)

Audit Report Quality

Basic output

Enterprise-grade with exploit PoCs & remediation guidance

Support & Updates

Your responsibility

Included with 24/7 security advisory

Total Cost of Ownership (Year 1)

$230K - $450K+

$40K - $125K

Technical Deep Dive

Cairo Fuzzing Analysis: Frequently Asked Questions

Get clear answers on our methodology, timeline, and security guarantees for Cairo smart contract fuzzing.

A standard fuzzing analysis for a single Cairo contract takes 5-7 business days. For complex protocols with multiple interdependent contracts, the timeline extends to 2-3 weeks. We provide a detailed project plan within 24 hours of scoping.

ENQUIRY

Get In Touch
today.

Our experts will offer a free quote and a 30min call to discuss your project.

NDA Protected
24h Response
Directly to Engineering Team
10+
Protocols Shipped
$20M+
TVL Overall
NDA Protected Directly to Engineering Team