We architect and deploy audit-ready smart contracts on EVM chains like Ethereum, Polygon, and Arbitrum. Our development process is built on OpenZeppelin standards and rigorous internal review, ensuring your core logic is secure from day one.
LABS
Services
Light Client Development & Sync Testing
We build and rigorously test custom light client software for your blockchain application, ensuring fast, secure, and reliable access to on-chain data.
Chainscore © 2026
overview
SECURE FOUNDATIONS
Custom Smart Contract Development
Production-ready smart contracts built for security, scalability, and long-term maintainability.
- Token Systems: Custom
ERC-20,ERC-721, andERC-1155contracts with advanced features like vesting, staking, and governance. - DeFi Protocols: Automated Market Makers (AMMs), lending/borrowing pools, and yield aggregators with gas-optimized logic.
- Enterprise Logic: Multi-signature wallets, asset management systems, and custom business logic with 99.9% uptime SLAs.
- Full Lifecycle Support: From architecture and development through to deployment, verification, and post-launch maintenance.
We deliver contracts that pass major security audits, reducing your time-to-audit by weeks and mitigating critical financial risks.
key-features-cards
CORE EXPERTISE
Our Light Client Development Capabilities
We build high-performance, secure light clients that enable your dApps to verify blockchain data without running a full node. Our development process is built on proven cryptographic principles and rigorous testing.
01
Custom Light Client Development
We design and implement custom light clients for Ethereum, Cosmos, Polkadot, and other major protocols. Our clients use the latest sync protocols (e.g., Portal Network, Nimbus) for minimal resource usage and fast header verification.
Sub-2 sec
Header Verification
< 50 MB
Avg. Footprint
02
Sync & Consensus Testing
Comprehensive testing suite for light client sync logic and consensus rule adherence. We simulate network forks, latency, and malicious peers to ensure your client stays secure and accurate under adversarial conditions.
100%
Test Coverage
> 99.9%
Uptime SLA
03
Gas-Optimized On-Chain Verification
Develop and audit smart contracts for on-chain light client verification (e.g., for bridges or oracles). We specialize in optimizing Merkle proof verification and state root validation to minimize gas costs.
Up to 60%
Gas Reduction
Solidity 0.8+
Standards
06
Maintenance & Upgrade Support
We provide ongoing maintenance, monitoring, and upgrade services for your light client. This includes integrating new hard forks, optimizing performance, and ensuring compatibility with network upgrades.
24/7
Monitoring
< 48 hrs
Upgrade Response
benefits
EXPERTISE & OUTCOMES
Why Partner for Light Client Development
Building a secure, performant light client is a complex engineering challenge. We deliver production-ready solutions that accelerate your time-to-market and ensure reliability.
01
Protocol-Specific Expertise
We build light clients for Ethereum (Beacon Chain), Polygon, Arbitrum, and other major L2s, ensuring correct sync logic and consensus rule implementation.
5+
Protocols Supported
100%
Spec Compliance
02
Security-First Architecture
Our development follows formal verification principles and integrates with security audit partners. We deliver battle-tested code to protect user funds and data.
Zero
Critical Bugs in Prod
3rd Party
Audit Mandatory
03
Optimized Performance & Cost
We engineer for minimal resource consumption—low bandwidth, CPU, and storage—enabling light clients to run efficiently on mobile and embedded devices.
< 100 MB
Storage Target
< 2 sec
Header Sync
04
Accelerated Development Cycle
Leverage our battle-tested frameworks and modular components. We deliver a production-ready MVP in weeks, not months, compressing your R&D timeline.
2-4 weeks
MVP Delivery
90%
Code Reuse
06
Ongoing Maintenance & Upgrades
We manage protocol hard fork integrations, performance monitoring, and security patches, ensuring your light client remains operational and up-to-date.
24/7
Monitoring
< 48 hrs
Fork Response
Choose Your Implementation Path
Structured Development Tiers
Our modular service tiers for Light Client & Sync Testing are designed to match your project's stage, from initial PoC to enterprise-grade production systems.
| Feature / Deliverable | Proof-of-Concept | Production-Ready | Enterprise Scale |
|---|---|---|---|
Light Client Core Implementation | |||
Custom Sync State Testing Suite | Basic | Comprehensive | Comprehensive + Custom |
Multi-Chain Support (e.g., Ethereum, Polygon) | 1 Chain | Up to 3 Chains | Unlimited |
Security Audit & Penetration Testing | Code Review | Full Audit Report | Full Audit + Ongoing Monitoring |
Performance Benchmarking | Basic Metrics | Load & Stress Testing | Custom SLA Validation |
Integration Support | Documentation | Guided Setup | Dedicated Engineer |
Deployment & DevOps | Self-Service | Managed Deployment | Full CI/CD Pipeline |
Response Time SLA | Best Effort | 24 Business Hours | 4 Hours |
Typical Timeline | 2-4 Weeks | 6-10 Weeks | Custom |
Starting Price | $25K | $75K | Custom Quote |
how-we-deliver
PROVEN PROCESS
Our Development & Testing Methodology
Our battle-tested methodology ensures your light client is secure, performant, and production-ready. We combine rigorous protocol-level testing with systematic development to deliver reliable infrastructure you can trust.
05
Continuous Integration & Benchmarking
Every commit triggers automated CI pipelines that run full sync tests and performance benchmarks. We track metrics like sync speed, memory usage, and CPU load to prevent regressions.
06
Security Audits & Peer Review
All client code undergoes internal security review and is prepared for external audits by firms like Trail of Bits or Quantstamp. We deliver audit-ready code with comprehensive documentation.
Technical & Commercial Questions
Light Client Development FAQs
Answers to common questions from CTOs and engineering leads evaluating light client development and sync testing services.
From specification to mainnet deployment, a standard Ethereum or Polygon light client integration takes 3-5 weeks. This includes 1 week for design/architecture, 2-3 weeks for core development and sync testing, and 1 week for security review and deployment. Complex multi-chain or custom consensus clients can extend to 8-10 weeks. We provide a detailed sprint 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
Confidentiality24h Response
Time to ValueDirectly to Engineering Team
No Sales Fluff10+
Protocols Shipped
$20M+
TVL Overall