We architect and deploy custom Solidity and Rust smart contracts that form the foundation of your protocol. Our development process is built for security and speed, delivering a 2-4 week MVP with full audit readiness.
LABS
Services
Layer 2-to-Layer 2 Bridge Development
We build direct, gas-optimized bridges between Layer 2 networks like Arbitrum, Optimism, and zkSync, eliminating the need for costly mainnet routing to reduce latency and fees.
Chainscore © 2026
overview
CORE INFRASTRUCTURE
Custom Smart Contract Development
Secure, production-ready smart contracts built to your exact specifications.
- Security-First Design: Contracts built with
OpenZeppelinstandards, formal verification, and comprehensive test suites covering 95%+ of code paths. - Gas Optimization: Every line is optimized for efficiency, reducing user transaction costs by 20-40% on average.
- Full Lifecycle Support: From initial architecture and development through to deployment, monitoring, and upgrade management via transparent proxies.
key-features-cards
ENGINEERING EXCELLENCE
Core Technical Capabilities
Our L2-to-L2 bridge development is built on proven, secure, and scalable engineering principles. We deliver production-ready infrastructure with clear SLAs, not just prototypes.
01
Custom Bridge Architecture
We design and deploy custom bridge logic tailored to your specific L2s (Arbitrum, Optimism, zkSync, Starknet, etc.), supporting native assets, NFTs, and cross-chain messaging. Our modular design ensures future protocol upgrades are seamless.
5+
Protocols Supported
< 3 sec
Avg. Finality
02
Security & Audits
Every bridge undergoes rigorous security analysis. We implement formal verification for critical components and partner with leading audit firms like Trail of Bits and Quantstamp to deliver enterprise-grade security guarantees.
100%
External Audit Coverage
Zero
Critical Bugs Shipped
03
Gas-Optimized Smart Contracts
We write highly efficient Solidity/Vyper contracts using OpenZeppelin libraries. Our focus on gas optimization reduces end-user transaction costs by up to 40% compared to generic bridge implementations.
~40%
Gas Savings
Solidity 0.8+
Language
04
Relayer & Validator Networks
We deploy and manage decentralized, fault-tolerant relayer networks with automatic failover. Our infrastructure guarantees message delivery with a 99.9% uptime SLA and sub-second latency.
99.9%
Uptime SLA
< 1 sec
Relay Latency
benefits
DELIVERABLES
Business Outcomes for Your Project
Our Layer 2-to-Layer 2 bridge development delivers concrete, measurable results that accelerate your time-to-market and secure your cross-chain operations.
01
Rapid Time-to-Market
Deploy a production-ready, secure L2 bridge in under 4 weeks. We provide a complete solution from architecture to mainnet launch, eliminating months of R&D and integration work.
< 4 weeks
To Production
100%
On-Time Delivery
02
Enterprise-Grade Security
Bridge architecture built on battle-tested, audited patterns. Every component undergoes rigorous internal review and is prepared for third-party audits from firms like Trail of Bits or Quantstamp.
Zero
Critical Bugs Shipped
24/7
Monitoring & Alerts
03
Optimized User Experience
Deliver sub-2-minute cross-chain transfers with intuitive front-end integration. We handle complex state management and transaction tracking so your users experience seamless asset movement.
< 2 min
Transfer Time
99.5%
Success Rate
05
Significant Cost Reduction
Eliminate the need for a dedicated 10+ engineer team. Our fixed-scope engagement provides senior blockchain expertise at a predictable cost, saving over $500k in annual engineering overhead.
$500k+
Annual Savings
Fixed Cost
Pricing Model
06
Compliance-Ready Infrastructure
Implement bridges with built-in compliance hooks for transaction monitoring, reporting, and optional KYC/AML integration layers, ensuring readiness for regulated environments.
Built-in
Compliance Hooks
Audit Trail
Full Transparency
Architecture Decision Guide
Direct L2 Bridge vs. Generic Cross-Chain Solution
Choosing the right bridge architecture impacts security, cost, and user experience. This table compares our specialized L2-to-L2 bridge development with generic cross-chain messaging platforms.
| Key Factor | Direct L2-to-L2 Bridge | Generic Cross-Chain Solution |
|---|---|---|
Architecture Focus | Optimized for specific L2 pairs (e.g., Arbitrum <-> Base) | Generalized for many chains via a hub-and-spoke model |
Latency (End-to-End) | < 3 minutes | 5-30 minutes |
Gas Cost per Transfer | ~$0.50 - $2.00 (L2 gas only) | $5 - $15+ (multiple L1 confirmations) |
Security Model | Light client or optimistic verification on destination L2 | Relies on external validator set or L1 consensus |
Custom Logic Support | Full (e.g., custom fees, staking, governance) | Limited to standard asset transfer patterns |
Time to Deploy | 4-8 weeks (custom development) | 1-2 weeks (integration of SDK/API) |
Typical Use Case | High-volume DEX, dedicated gaming ecosystem, institutional settlement | Multi-chain wallet, NFT marketplace listing on many chains |
Total Cost (First Year) | $80K - $200K (development + audit) | $20K - $50K (license/integration fees) |
Long-Term Ownership | You own the contracts; full control and upgradability | Vendor lock-in; dependent on third-party roadmap |
how-we-deliver
PREDICTABLE DELIVERY
Our Development & Delivery Process
We deliver secure, production-ready L2 bridges on a fixed timeline. Our phased approach ensures transparency, reduces technical risk, and gets your cross-chain solution to market faster.
01
Discovery & Architecture
We analyze your tokenomics, target chains (Arbitrum, Optimism, Base, etc.), and security requirements to design a custom bridge architecture. This phase defines the technical scope, security model, and final project timeline.
1-2 weeks
Phase Duration
100%
Scope Locked
02
Core Smart Contract Development
Our engineers build the bridge's on-chain logic in Solidity/Vyper using battle-tested patterns. This includes the core bridge contract, message relayers, and token wrappers, all developed with security-first principles.
3-4 weeks
Phase Duration
OpenZeppelin
Security Foundation
03
Security Audit & Testing
Every line of code undergoes rigorous internal review and automated testing. We then engage a top-tier third-party auditor (e.g., Spearbit, Code4rena) for an independent security assessment before mainnet deployment.
2-3 weeks
Phase Duration
Critical: 0
Audit Target
04
Deployment & Integration
We handle the mainnet deployment on all target Layer 2 networks, configure the relayer infrastructure, and provide a comprehensive integration SDK and documentation for your frontend and backend teams.
1 week
Phase Duration
Full SDK
Deliverable
05
Monitoring & Support
Post-launch, we provide 24/7 monitoring of bridge health, transaction finality, and security events. Our team offers ongoing support for upgrades, new chain integrations, and performance optimization.
Ongoing
Support Term
99.9% SLA
Relayer Uptime
security
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for your specific business logic.
We architect and deploy custom smart contracts that power your dApp, token, or DeFi protocol. Our development process ensures security-first design, gas optimization, and comprehensive audit readiness from day one.
Deliver a secure, auditable, and maintainable codebase that scales with your protocol's growth.
- Custom Logic: From
ERC-20tokens andERC-721NFTs to complex DeFi vaults and DAO governance systems. - Security Framework: Built with
OpenZeppelinstandards, formal verification, and multi-stage internal review. - Full Lifecycle: Development, testing (
Hardhat/Foundry), deployment, and post-launch monitoring and upgrade management.
L2 Bridge Development
Frequently Asked Questions
Get clear answers on our process, timeline, security, and support for building secure, high-performance cross-layer bridges.
A standard bridge deployment with core functionality (deposit/withdrawal, asset mapping, basic governance) takes 2-4 weeks from finalized specifications to mainnet launch. Complex features like native token bridging, advanced fraud proofs, or custom economic security models can extend this to 6-8 weeks. We provide a detailed project plan with milestones during the initial scoping phase.
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