Secure, audited smart contracts built for production by Web3-native engineers.
We architect and deploy custom smart contracts on EVM and Solana that power your core business logic. Our development process is built for security and speed:
Solidity 0.8+ and Rust with OpenZeppelin standards.Move from concept to a live, audited mainnet contract in as little as 2-4 weeks.
We specialize in:
ERC-20 tokens, DAO frameworks, and multi-signature wallets.Arbitrum, Optimism) and bridge integrations.Our EVM cross-chain relayer development provides the foundational infrastructure for secure, scalable, and cost-effective interoperability. We build with production-grade reliability from day one.
We design and implement bespoke message-passing architectures (e.g., optimistic, zk-based) tailored to your security model and latency requirements. Includes custom fee logic, rate limiting, and failure recovery systems.
All relayer contracts and off-chain components are built with formal verification in mind, using OpenZeppelin libraries and industry-standard patterns. Includes integration with leading audit firms for pre-launch reviews.
Deployment of fault-tolerant, auto-scaling relayer nodes across multiple cloud regions. Features include load balancing, health monitoring, automatic failover, and multi-signature execution for critical operations.
Deep analysis and optimization of on-chain transaction costs for relay operations. We implement strategies like batch processing, gas token abstraction, and dynamic fee estimation to minimize operational expenses.
Comprehensive dashboard for real-time monitoring of message queues, node health, gas spend, and success/failure rates. Configurable alerts for anomalies and integrated logging for forensic analysis.
End-to-handoff from testnet staging to mainnet launch, including stress testing and dry runs. We provide ongoing maintenance, upgrade management, and 24/7 incident response support.
Our EVM cross-chain relayer development delivers more than just code. We provide the infrastructure, security, and reliability your application needs to scale across blockchains.
Deploy a fully managed, horizontally-scalable relayer network. We handle node orchestration, load balancing, and failover, ensuring your cross-chain messages never drop.
Receive custom-built, audited bridge and messaging contracts. We implement gas-efficient patterns for message verification and fund locking, reducing user costs by up to 40%.
Unlock seamless asset transfers between Ethereum, Arbitrum, Polygon, Base, and other major EVM chains. Connect your dApp to billions in on-chain liquidity.
Protect your bridge with 24/7 threat monitoring, anomaly detection, and multi-sig governance. Our architecture is built on OpenZeppelin and follows industry security standards.
Go from concept to mainnet in weeks, not months. We provide the complete stack—contracts, relayers, frontend SDKs, and documentation—accelerating your launch.
Stay ahead with automatic updates for new chain integrations, EIPs, and security patches. We manage the protocol complexity so your team can focus on product.
A technical and economic comparison of developing a cross-chain relayer in-house versus leveraging Chainscore's specialized development service.
| Critical Factor | Build In-House | Generic SDK/API | Chainscore Custom Relayer |
|---|---|---|---|
Time to Production | 6-12+ months | 2-4 weeks (integration) | 4-8 weeks (full delivery) |
Upfront Development Cost | $250K - $750K+ | $0 - $50K (licensing) | $80K - $200K |
Security Posture | High Risk (unaudited, novel code) | Medium Risk (depends on provider's security) | Low Risk (audited, battle-tested patterns) |
Protocol & Chain Flexibility | Full control, high complexity | Limited to provider's roadmap | Tailored to your target chains (EVM & beyond) |
Ongoing Maintenance Burden | Full team required (DevOps, SRE) | Shared responsibility, vendor lock-in | Optional Managed SLA with 24/7 monitoring |
Performance Optimization | Customizable, requires deep expertise | Generic, shared infrastructure | Optimized for your use case (latency, cost) |
Total Cost of Ownership (Year 1) | $400K - $1M+ | $60K - $150K | $120K - $250K (incl. optional SLA) |
Competitive Advantage | Theoretical, if executed flawlessly | None (same as competitors) | Differentiated features & reliability |
A structured, security-first approach to delivering production-ready cross-chain relayers that scale. We focus on delivering a reliable, audited solution on schedule.
We analyze your specific cross-chain use case (e.g., token bridging, messaging, governance) to design a gas-efficient, secure architecture. This includes selecting optimal protocols (Axelar, Wormhole, LayerZero) and defining key metrics for latency, cost, and finality.
Our engineers write, test, and optimize the core relayer logic and associated smart contracts (e.g., bridge vaults, message verifiers) in Solidity/Vyper. We implement battle-tested patterns from OpenZeppelin and adhere to EVM security best practices.
Every relayer undergoes rigorous internal review and a formal audit by a top-tier security firm. We address all findings before deployment, providing you with a verifiable audit report to build trust with your users.
We deploy and configure the off-chain relayer infrastructure (oracles, watchers, signers) on your chosen cloud provider. This includes setting up high-availability clusters, monitoring, and alerting for 24/7 operation.
Comprehensive end-to-end testing on testnets (Sepolia, Holesky) and staging environments. We simulate mainnet conditions, stress tests, and failure scenarios to ensure reliability and performance under load.
We manage the mainnet deployment and provide ongoing monitoring via dashboards for transaction volume, gas costs, and system health. You receive full documentation and operational runbooks for long-term success.
Build secure, high-performance blockchain networks and applications from the ground up.
We architect and deploy bespoke blockchain solutions tailored to your specific business logic and regulatory requirements. Our full-cycle development delivers production-ready networks, from consensus design to node orchestration.
Hyperledger Besu or EVM-compatible frameworks.Ethereum, Polygon, and Solana.Go from concept to a live, audited mainnet deployment in as little as 8-12 weeks.
Get clear answers on timelines, costs, and technical details for building a secure, production-ready cross-chain messaging system.
A standard, production-ready EVM cross-chain relayer with core messaging and security features typically deploys in 4-6 weeks. Complex integrations (e.g., custom consensus, multi-sig governance, novel proving schemes) can extend to 8-12 weeks. We follow a phased delivery model with weekly demos, ensuring alignment and allowing for incremental deployment.
Our experts will offer a free quote and a 30min call to discuss your project.