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Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
LABS
Services

Light Client Verification Relay Services

We design, deploy, and manage secure relayers that maintain and update light client state proofs on destination chains, enabling trust-minimized verification of cross-chain messages and transactions.
Chainscore © 2026
overview
FULL-STACK ENGINEERING

Custom Blockchain Development

End-to-end blockchain application development from smart contracts to user-facing dApps.

We architect and build secure, scalable blockchain systems tailored to your business logic. Our full-cycle development delivers production-ready applications, not just proof-of-concepts.

  • Core Smart Contracts: Custom Solidity/Rust development with OpenZeppelin security patterns and gas optimization.
  • Full-Stack dApps: Frontend (React/Next.js) and backend (Node.js/TheGraph) integration with wallets like MetaMask and WalletConnect.
  • Deployment & DevOps: Automated CI/CD pipelines, mainnet deployment, and infrastructure management for EVM chains, Solana, or Cosmos.

We deliver a complete, audited MVP in 4-6 weeks, including comprehensive documentation and a clear path to scaling.

Our process is built for technical leaders:

  • Architecture Review: We design systems for 99.9% uptime and future upgrades.
  • Security-First Development: All code undergoes internal review and is prepared for third-party audits.
  • Ownership & Handoff: You receive all source code, IP rights, and deployment scripts.
key-features-cards
ENTERPRISE-GRADE INFRASTRUCTURE

Core Capabilities of Our Relayer Service

Our Light Client Verification Relay Service provides the critical on-chain infrastructure for trustless cross-chain communication, designed for production-ready applications.

01

Zero-Knowledge Proof Verification

We verify and relay ZK proofs from source chains (e.g., Ethereum, Polygon) to destination chains, enabling secure and trust-minimized state synchronization for your dApps.

100%
Proof Accuracy
< 3 sec
Avg. Verification Time
02

Multi-Chain State Relay

Continuously monitor and relay finalized block headers and state roots from major L1/L2 networks to your on-chain light clients, ensuring data availability and consistency.

15+
Supported Chains
99.9%
Relay Uptime SLA
03

Gas-Optimized Execution

Our relayers execute on-chain verification calls with optimized gas consumption, reducing your protocol's operational costs by up to 40% compared to self-managed solutions.

40%
Avg. Gas Savings
< 12 sec
Finality Target
04

Fault-Tolerant & Decentralized

Deploy with a decentralized network of relayers with automatic failover, eliminating single points of failure and ensuring high availability for mission-critical applications.

5+
Redundant Nodes
< 60 sec
Failover Time
05

Real-Time Monitoring & Alerts

Gain full visibility into relay performance, proof verification status, and chain health with our dashboard and configurable alerts for any latency or failure events.

24/7
Monitoring
< 1 min
Alert Latency
06

Custom Integration & SDK

Quickly integrate our relayer service with your existing smart contracts and backend using our TypeScript SDK and comprehensive documentation for developers.

< 2 days
Integration Time
Full SDK
TypeScript & Go
EXPLORE
benefits
EXPERTISE YOU CAN TRUST

Why Choose Chainscore for Your Light Client Relayer

We deliver production-ready, secure, and cost-effective light client relay infrastructure so your team can focus on building core application logic, not complex consensus verification.

01

Proven Protocol Expertise

Our team has deep experience building and maintaining relayers for major networks like Ethereum, Polygon, and Arbitrum. We handle the complexities of consensus proofs and state verification for you.

10+
Protocols Supported
5+ years
Core Experience
02

Enterprise-Grade Security & Audits

Security is foundational. Our relay infrastructure undergoes regular third-party audits, follows zero-trust principles, and implements robust monitoring to protect your data and transactions.

100%
Audit Coverage
24/7
Security Monitoring
03

High-Performance, Low-Latency Relays

Engineered for speed and reliability. Our globally distributed nodes ensure sub-second block header verification and 99.9% uptime, critical for real-time DeFi and trading applications.

99.9%
Uptime SLA
< 1 sec
Verification Latency
04

Significant Cost Reduction

Eliminate the overhead of running and securing your own full nodes. Our managed service reduces your infrastructure costs by up to 70% while providing superior reliability.

Up to 70%
Cost Savings
$0
Node Maintenance
05

Rapid Integration & Deployment

Get to market faster with our developer-friendly APIs and SDKs. We provide comprehensive documentation and dedicated support for a seamless integration process.

< 2 weeks
Average Deployment
5 min
API Setup
EXPLORE
06

Dedicated Technical Support

Gain a direct line to our engineering team. We offer proactive monitoring, rapid incident response, and strategic guidance to ensure your relayer performs optimally at scale.

< 15 min
Avg. Response Time
24/7
Engineer Support
Strategic Decision Analysis

Build vs. Buy: Light Client Relayer Implementation

A detailed comparison of the total cost of ownership, risk, and time investment between developing a custom light client relayer in-house versus using Chainscore's managed service.

Implementation FactorBuild In-HouseBuy with Chainscore

Time to Production

6-12 months

4-8 weeks

Initial Development Cost

$150K - $400K+

$25K - $75K

Ongoing Maintenance (Annual)

$80K - $200K (2-3 FTE)

Optional SLA from $30K/year

Security & Audit Overhead

High (Unaudited code, custom risk)

Low (Pre-audited, battle-tested patterns)

Protocol Coverage

1-2 chains initially

Ethereum, Polygon, Arbitrum, Optimism, Base, zkSync

Team Expertise Required

Senior Cryptography & Consensus Engineers

Your existing Web3 team

Uptime & Reliability SLA

Your responsibility (0% SLA)

99.9% Guaranteed Uptime

Upgrade & Fork Management

Manual, reactive process

Automated, proactive handling

Total Cost (First Year)

$230K - $600K+

$55K - $105K

Key Risk Profile

Technical debt, security vulnerabilities, talent retention

Managed operational risk, predictable costs

how-we-deliver
PREDICTABLE, TRANSPARENT, AND SECURE

Our Delivery Process: From Design to Production

A structured, four-phase methodology designed for technical leaders. We deliver production-ready light client verification infrastructure with clear milestones, guaranteed SLAs, and zero surprises.

01

Phase 1: Architecture & Design Review

We conduct a deep technical assessment of your blockchain stack and use case. We define the optimal relay architecture, finality thresholds, and security model, delivering a signed technical specification document.

48 hours
Spec Delivery
Zero Cost
Initial Review
02

Phase 2: Secure Development & Integration

Our engineers build the custom relay logic, integrating with your chosen consensus client (Lighthouse, Prysm, Teku) and data availability layer. All code follows OpenZeppelin patterns and is instrumented for observability from day one.

2-4 weeks
Build Time
100%
Test Coverage
03

Phase 3: Rigorous Testing & Auditing

We deploy to a staging environment matching your production specs. The system undergoes load testing (10k+ TPS), adversarial simulation, and a formal security review by our internal audit team before client sign-off.

99.9%
Simulated Uptime
< 2 sec
P95 Finality
04

Phase 4: Production Deployment & SLA

We manage the deployment to your cloud or on-prem infrastructure, provide comprehensive documentation, and initiate 24/7 monitoring. The engagement is backed by a service level agreement covering uptime and support response times.

99.95%
Uptime SLA
< 15 min
Critical Response
security-operations
BUILD

Custom Smart Contract Development

Secure, production-ready smart contracts built by Web3 experts to power your core business logic.

We architect and deploy custom smart contracts that are secure, gas-optimized, and tailored to your exact use case. Our development process includes formal verification and comprehensive unit testing to ensure reliability from day one.

Deploy a battle-tested MVP in as little as 2-4 weeks, not months.

Our team specializes in:

  • Token Systems: Custom ERC-20, ERC-721, and ERC-1155 with advanced features like vesting and governance.
  • DeFi Protocols: Automated Market Makers (AMMs), lending/borrowing pools, and yield aggregators.
  • Enterprise Logic: Multi-signature wallets, supply chain tracking, and verifiable credentials.

We don't just write code; we deliver audit-ready contracts. Every project follows OpenZeppelin standards and undergoes peer review, significantly reducing vulnerabilities and audit costs before you engage a third-party firm.

Technical & Commercial Details

Light Client Relayer FAQs

Get clear answers on timelines, security, and integration for our Light Client Verification Relay service.

Standard deployments take 2-4 weeks from kickoff to production. This includes architecture design, smart contract development, off-chain service integration, and security review. Complex multi-chain or high-frequency relayers may extend to 6-8 weeks. We provide a detailed project plan within the first 48 hours of engagement.

ENQUIRY

Get In Touch
today.

Our experts will offer a free quote and a 30min call to discuss your project.

NDA Protected
24h Response
Directly to Engineering Team
10+
Protocols Shipped
$20M+
TVL Overall
NDA Protected Directly to Engineering Team