We architect and deploy custom smart contracts for DeFi, NFTs, and enterprise applications. Our development process ensures security-first design, gas optimization, and comprehensive audit readiness from day one.
Cross-L2 Payment Routing Engine
Smart Contract Development
Secure, production-ready smart contracts built by Web3 experts.
Deliver a secure, scalable foundation for your protocol in as little as 2-4 weeks.
- Protocol Development:
ERC-20,ERC-721,ERC-1155, custom DeFi logic, and DAO governance. - Security & Audits: Built with
OpenZeppelinstandards and prepared for third-party audits by firms like ConsenSys Diligence. - Full Lifecycle Support: Development, deployment, testing, and ongoing maintenance with 99.9% uptime SLAs.
Core Engine Capabilities
Our payment routing engine is built on battle-tested infrastructure, designed for enterprise-grade reliability and developer velocity. Each component is engineered to eliminate cross-chain friction.
Multi-L2 Pathfinding
Real-time algorithm that analyzes liquidity, fees, and latency across Arbitrum, Optimism, Base, and Polygon zkEVM to find the optimal payment route. Reduces transaction costs by up to 40% versus manual bridging.
Atomic Settlement
Guaranteed cross-chain transaction completion with a single signature. Leverages canonical bridges and third-party liquidity pools to ensure funds either arrive on the destination chain or revert entirely, eliminating settlement risk.
Gas Abstraction & Optimization
End-users never need destination chain gas. Our system handles gas estimation, sponsorship, and payment in the source chain's native token, simplifying UX and reducing failed transactions by over 95%.
Real-Time Liquidity Monitoring
Continuous surveillance of bridge and DEX liquidity pools across supported networks. Automatically reroutes payments during congestion or low liquidity, ensuring consistent sub-2 minute finality for all transfers.
Enterprise-Grade Observability
Comprehensive dashboard with real-time metrics on transaction success rates, cost breakdowns, and network health. Webhook alerts for anomalous events and full transaction tracing for compliance and debugging.
Business Outcomes for Your Payment Platform
Our Cross-L2 Payment Routing Engine delivers measurable improvements to your platform's performance, security, and bottom line. Here’s what you can expect.
Reduce Settlement Time & Costs
Automatically route payments through the most efficient L2 (Arbitrum, Optimism, Base) or L1 path based on real-time gas fees and network congestion. Slash user transaction costs by up to 90% compared to single-chain solutions.
Expand Market Reach Instantly
Enable seamless payments across any supported EVM chain without requiring users to bridge assets manually. Onboard users from Arbitrum, Polygon, and Base with a single integration, increasing your potential user base overnight.
Guaranteed Uptime & Reliability
Built with enterprise-grade failover and redundant node infrastructure. Our system monitors chain health and reroutes transactions automatically to ensure payment success, backed by a formal SLA.
Accelerate Time-to-Market
Leverage our pre-audited, production-ready smart contracts and API. Integrate a complete cross-chain payment system in weeks, not months, avoiding the complexity and security risks of in-house development.
Gain Actionable Payment Analytics
Access a unified dashboard tracking payment volume, success rates, fee savings, and user flow across all chains. Make data-driven decisions to optimize routes and improve your platform's economics.
Phased Development & Integration
A transparent, milestone-driven approach to building and deploying your cross-L2 payment routing engine, from initial architecture to full-scale production with ongoing support.
| Phase & Deliverables | Discovery & Architecture | Core Development & Audit | Integration & Deployment | Production & Scale |
|---|---|---|---|---|
Technical Specification & Roadmap | ||||
Modular Router Architecture Design | ||||
Core Smart Contract Development | ||||
Third-Party Security Audit | ||||
Testnet Deployment & Simulation | ||||
Mainnet Deployment Support | ||||
Multi-Chain Liquidity Integration | ||||
24/7 Monitoring & Alerting | ||||
Performance Optimization SLA | ||||
Typical Timeline | 2-3 weeks | 6-8 weeks | 3-4 weeks | Ongoing |
Investment Range | $15K - $25K | $75K - $150K | $30K - $50K | Custom SLA |
Our Delivery Methodology
We deliver production-ready payment routing engines through a structured, transparent process designed for technical leaders who value speed, security, and predictable outcomes.
Architecture & Protocol Audit
We conduct a deep technical assessment of your existing stack and target L2s (Arbitrum, Optimism, zkSync, etc.) to design a secure, gas-optimized routing architecture. This includes a formal security review of all integrated protocols.
Smart Contract Development & Hardening
Our engineers build the core routing logic, liquidity management, and settlement contracts in Solidity 0.8+ using OpenZeppelin libraries. Every line is written with gas efficiency and MEV resistance as primary constraints.
Rigorous Testing & Simulation
We deploy the engine to a private testnet for comprehensive unit, integration, and stress testing. This includes simulating high-volume cross-chain transaction loads and adversarial network conditions to ensure reliability.
Security Audit & Formal Verification
Before mainnet deployment, the complete system undergoes an independent audit by a top-tier security firm. Critical path logic is formally verified to eliminate edge-case vulnerabilities.
Staged Mainnet Deployment
We deploy using a phased, canary release strategy. Initial deployment handles a small percentage of live traffic, with automated monitoring for slippage, latency, and success rates before full-scale cutover.
Handover & Production Support
We provide complete technical documentation, operational runbooks, and a 30-day intensive support period. Your team gains full ownership of the codebase with ongoing access to our engineering team for critical issues.
Build vs. Buy: Cross-L2 Payment Routing Engine
A detailed comparison of the resource investment and risk profile for developing a cross-layer 2 payment router internally versus leveraging Chainscore's enterprise-grade solution.
| Key Factor | Build In-House | Chainscore Engine |
|---|---|---|
Time to Market (MVP) | 6-12 months | 4-8 weeks |
Initial Development Cost | $250K - $600K+ | $75K - $200K |
Security Audit & Risk | High (unaudited, custom code) | Low (pre-audited, battle-tested modules) |
Supported L2s & Bridges | Requires per-integration R&D | Pre-integrated: Arbitrum, Optimism, Base, zkSync, Starknet |
Routing Algorithm Complexity | High (must build & maintain) | Advanced (real-time liquidity & fee optimization) |
Team Requirements | 3-5 Senior Blockchain Devs | Your existing integration team |
Ongoing Maintenance & Updates | Full-time DevOps & Dev team | Managed service with optional SLA |
Uptime & Reliability SLA | Your responsibility (0% SLA) | 99.9% Guaranteed Uptime |
Total Cost of Ownership (Year 1) | $500K - $1.2M+ | $150K - $400K |
Frequently Asked Questions
Common questions from CTOs and engineering leads about our custom payment routing engine development.
A standard Cross-L2 Payment Routing Engine deployment takes 4-8 weeks from kickoff to mainnet launch. This includes 2 weeks for architecture design and smart contract development, 2 weeks for integration and testing on testnets, and 2-4 weeks for security audits and final deployment. We use agile sprints to deliver working prototypes within the first 10 days.
Get In Touch
today.
Our experts will offer a free quote and a 30min call to discuss your project.