Smart Contract
Audits That
Match Your Stack.
Expert-led security reviews for early-stage crypto protocols — ZK circuits, EigenLayer AVS, and Solidity contracts — at pricing structured for teams building before they are funded.
Blockchain Security Is Broken for Early-Stage Protocols
The Web3 ecosystem lost over $3.1 billion in H1 2025 alone. Smart contract bugs, ZK circuit vulnerabilities, and AVS economic attack vectors are increasingly sophisticated — and the protocols most at risk are often the least equipped to defend against them.
Top-tier audit firms charge $50,000 to $200,000+ per engagement. Cheap automated scanners provide false confidence without genuine manual review. Maarai Labs sits precisely in that gap: expert-level manual reviews at pricing structured for teams building before they are funded.
Audits Are Priced Out of Reach
Average DeFi audit sits at $50,000–$100,000. For a team operating on grants or a seed round, this can exceed their entire engineering budget.
ZK Expertise Is Exceptionally Rare
ZK circuit audits command an 80–120% premium above EVM audits. Under-constrained signals, Fiat-Shamir weaknesses, and transcript mismatches are invisible to reviewers without direct circuit-level experience.
EigenLayer AVS Security Is Unsolved
No established market pricing or standard methodology yet exists for AVS security review. Operator collusion, slashing manipulation, and stake-weighted censorship require specialized knowledge.
Five Core Service Lines
Full Pricing →Smart Contract Security Review
Manual Solidity review covering reentrancy, access control, integer overflow, oracle manipulation, and economic attack vectors.
ZK Circuit Audit & Review
Structured security review of ZK circuit implementations. Covers constraint analysis, transcript correctness, and on-chain verifier matching.
EigenLayer AVS Security Review
Focused review of EigenLayer AVS architecture — ServiceManager, OperatorRegistry, TaskManager, SlashingConditions, and operator node logic.
ZK Proof Integration Consulting
End-to-end integration of ZK proof generation and verification — circuit design, prover server setup, Solidity verifier deployment, and frontend integration.
Technical Whitepaper & Research Writing
Academic-grade technical writing for blockchain projects — whitepapers, research reports, grant applications, and architecture documentation.
We Have Built the Systems We Audit
Production ZK Experience
We have built working Halo2 SHPLONK/KZG and Plonky2 ZK-STARK circuits from scratch — deployed on Ethereum testnets with on-chain verifiers. We find bugs because we have encountered them ourselves.
Live EigenLayer AVS Deployment
We designed, built, and registered a complete EigenLayer AVS — ServiceManager, OperatorRegistry, TaskManager, SlashingConditions, and a live Rust operator node on Sepolia. We know this architecture from the inside out.
ZK + EigenLayer in One Engagement
Most security firms audit Solidity. A smaller number can review ZK circuits. Almost none can do both alongside EigenLayer AVS architecture in a single engagement. For protocols building at the intersection of these systems — ZK coprocessors, privacy-preserving AVS, or ZK-gated operator logic — Maarai Labs is one of the few firms that can cover the entire stack without splitting the engagement across multiple vendors.
Senior Expertise, No Dilution
Every technical decision at Maarai Labs is made by a senior expert with production experience in the system being reviewed. No findings written by junior analysts. No review signed off without direct expert validation. That standard holds as the firm grows.
How an Engagement Works
Scoping Call — Free
We review your codebase structure, discuss your timeline, and provide a fixed-price quote within 48 hours. No forms, no sales pipeline — a direct technical conversation with no commitment required.
Pre-Audit Preparation
We provide a Pre-Audit Readiness Checklist covering documentation requirements, test suite expectations, and code freeze guidelines. Well-prepared codebases receive faster turnaround and more thorough coverage.
Manual Expert Review
We combine automated scanning with 100% manual expert review. Automated tools catch known vulnerability patterns — manual review is what catches logic errors, economic attack vectors, and system-level flaws that no scanner can identify.
Findings Report Delivery
You receive a written report with every finding categorized by severity — Critical, High, Medium, Low, and Informational — with detailed descriptions, proof-of-concept scenarios, and specific remediation recommendations.
Remediation Review — Included
After you implement fixes, we verify that each remediation is correct and has not introduced new vulnerabilities. Included in all Standard and Complex engagements at no additional cost.
Ready to Ship Secure Code?
Get started with a free scoping call. No forms, no commitment — just a direct technical conversation and a fixed-price quote within 48 hours.
Response within 48 hours · Fixed pricing, no surprises · Pre-revenue? Let's talk structure.