We design and build bespoke blockchain solutions from the ground up. Our team delivers production-ready, audited smart contracts on EVM-compatible chains, Solana, or Cosmos SDK-based networks, ensuring your application is secure, scalable, and fit for purpose.
LABS
Services
L2 Contract Security Audit & Migration
Specialized security reviews for smart contracts migrating to or built on Layer 2 networks. We audit for L2-specific risks like sequencer centralization, gas cost discrepancies, and new precompiles to prevent costly exploits.
Chainscore © 2026
overview
BUILD
Custom Blockchain Development
Architect and deploy custom blockchain networks and smart contracts tailored to your business logic.
From a 2-week MVP to a full enterprise-grade mainnet, we provide the technical leadership and battle-tested code to bring your vision to market.
- Core Development: Custom
Solidity/Rustsmart contracts, Layer 2 rollups (Optimism,Arbitrum), and private consortium chains. - Security First: All code undergoes rigorous review and formal verification, with optional audits by leading firms like CertiK or Quantstamp.
- Full Lifecycle Support: We handle deployment, node infrastructure, monitoring with
Prometheus/Grafana, and ongoing maintenance with 99.9% uptime SLAs.
key-features-cards
PROVEN FRAMEWORK
Our L2-Specific Audit Methodology
We apply a specialized, multi-layered audit process designed for the unique complexities of Layer 2 protocols, ensuring your smart contracts are secure, efficient, and ready for production.
01
Architecture & Integration Review
We analyze your contract's interaction with the L2 sequencer, data availability layer, and bridge infrastructure to identify systemic risks and gas optimization opportunities specific to rollups or sidechains.
50+
L2 Projects Audited
100%
Coverage for Bridge Logic
02
Sequencer & Prover Logic Analysis
Deep-dive security review of transaction ordering, state commitment, and fraud/validity proof submission logic to prevent MEV exploitation and ensure finality guarantees.
< 48h
Critical Issue TAT
Zero
Post-Audit Exploits
03
Cross-Chain Bridge & Messaging Security
Comprehensive audit of asset bridging, message passing, and withdrawal delay mechanisms to eliminate reorg risks, signature replay, and bridge draining vulnerabilities.
$10B+
TVL Secured
OWASP
Compliance Standard
04
Gas & Fee Mechanism Validation
Optimization and security review of L1 settlement costs, L2 fee calculation, and refund mechanisms to ensure economic sustainability and protect against denial-of-service attacks.
Up to 40%
Gas Savings Identified
EIP-1559
Fee Model Expertise
05
Upgradeability & Governance Hardening
Security assessment of proxy patterns, timelock controllers, and multi-sig configurations tailored for L2's faster block times and unique governance attack surfaces.
OpenZeppelin
Standards Adherence
24/7
Monitoring Post-Deploy
06
Final Verification & Migration Testing
End-to-end testing of the migration path from testnet to mainnet, including stress tests under peak load and verification of all L2-specific tooling integrations.
99.9%
Test Coverage SLA
< 2 Weeks
Typical Audit Cycle
benefits
EXPERTISE YOU CAN TRUST
Why Choose Our L2 Security Audit
Our audits are engineered for the unique complexities of Layer 2 ecosystems, delivering actionable security and seamless migration paths.
Choose Your Security Level
Comprehensive Audit Packages
Compare our structured service tiers for L2 smart contract security audits and migration support, designed to match your project's stage and risk profile.
| Audit & Migration Feature | Starter | Professional | Enterprise |
|---|---|---|---|
Automated Vulnerability Scan | |||
Manual Code Review (Expert Hours) | 20 hours | 80 hours | 200+ hours |
L2-Specific Risk Analysis (MEV, Sequencing) | Basic | Comprehensive | Comprehensive + Custom |
Formal Verification | Critical Functions | Full Contract Suite | |
Gas Optimization Report | |||
Post-Audit Fix Verification | 1 round | Unlimited rounds | Unlimited + Consultation |
Deployment & Migration Support | |||
Priority Response Time SLA | 72h | 24h | 4h |
Ongoing Monitoring & Alerting | |||
Starting Price | $8,000 | $25,000 | Custom Quote |
process-walkthrough
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for your specific business logic.
We architect and deploy custom Solidity/Rust smart contracts that are audit-ready from day one. Our development process integrates OpenZeppelin libraries and follows formal verification patterns to eliminate costly vulnerabilities.
- Token Systems: Custom
ERC-20,ERC-721, andERC-1155implementations with advanced features like vesting, minting controls, and tax mechanics. - DeFi Primitives: Automated Market Makers (AMMs), lending pools, staking contracts, and yield aggregators with gas-optimized logic.
- Enterprise Logic: Multi-signature wallets, DAO governance modules, and custom business logic for real-world asset (RWA) tokenization.
We deliver a fully documented codebase, comprehensive test suites with >95% coverage, and a clear path to third-party audit by firms like CertiK or Quantstamp.
Your Questions, Answered
L2 Security Audit FAQs
Get clear answers on our methodology, timeline, and deliverables for securing your Layer 2 protocol.
We employ a hybrid audit methodology combining automated analysis with deep manual review. Our process includes: 1) Architecture Review of your rollup/validium design and fraud/validity proofs. 2) Automated Scanning using Slither, MythX, and custom tools for common vulnerabilities. 3) Manual Code Review by senior auditors focusing on L2-specific risks like sequencer liveness, bridge security, and state transition logic. 4) Formal Verification for critical components using tools like Certora and K. This multi-layered approach 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