We architect and deploy custom smart contracts on EVM and Solana that form the backbone of your application. Our process is built for security and speed, delivering a 2-week MVP or a fully audited mainnet deployment.
LABS
Services
Cross-Chain Data Availability Relayers
Build secure, high-performance relayers to guarantee transaction data and state root availability across chains. Essential infrastructure for validiums, optimistic rollups, and modular architectures.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3-native engineers.
- Security-First Development: Code written in
Solidity 0.8+orRust, followingOpenZeppelinstandards and internal review before any audit. - Full-Stack Integration: Contracts are delivered with comprehensive testing suites and integration guides for your front-end.
- Gas Optimization: We minimize transaction costs, targeting >30% gas reduction versus unaudited industry averages.
We don't just write code; we deliver the secure, auditable logic that powers tokens, DeFi protocols, and NFT ecosystems.
key-features-cards
ENTERPRISE-GRADE INFRASTRUCTURE
Core Capabilities of Our Relayer Solutions
Our cross-chain data availability relayers are engineered for mission-critical applications, providing the secure, reliable, and performant backbone your multi-chain strategy requires.
01
High-Availability Architecture
Multi-region, fault-tolerant node deployment ensures your cross-chain messages are delivered without interruption. We manage the infrastructure so you can focus on your product.
99.9%
Uptime SLA
< 50ms
Mean Latency
02
Zero-Trust Security Model
Every data packet is cryptographically verified at the source and destination. Our relayers operate on a principle of zero implicit trust, mitigating bridge and relayer attack vectors.
100%
On-Chain Proof
SOC 2 Type II
Compliance
03
Protocol-Agnostic Integration
Seamlessly connect across EVM chains (Ethereum, Arbitrum, Polygon), Solana, Cosmos, and more. We handle the protocol-specific complexities, offering a unified API.
25+
Supported Chains
< 2 weeks
Integration Time
04
Real-Time Monitoring & Alerts
Gain full visibility into message lifecycle, latency, and success rates with our dashboard and webhook alerts. Proactively resolve issues before they impact users.
24/7
Incident Response
p99 < 5s
Alert Time
05
Gas Optimization & Cost Management
Intelligent batching and fee market analysis reduce your cross-chain transaction costs by up to 40% compared to naive implementations, with predictable pricing.
~40%
Cost Reduction
Fixed Fee
Pricing Model
benefits
DELIVERABLES
Business Outcomes for Your Protocol
Our cross-chain data availability relayers are engineered to deliver measurable infrastructure improvements, directly impacting your protocol's performance, security, and growth.
01
Guaranteed Data Finality
Eliminate cross-chain transaction uncertainty. Our relayers provide cryptographic proof of data availability with sub-2-second finality across supported chains, ensuring your protocol's state is always synchronized and verifiable.
< 2 sec
Finality Time
100%
Proof Integrity
02
Enterprise-Grade Uptime
Maintain uninterrupted service for your users with a 99.9% uptime SLA. Our multi-region, fault-tolerant relay network is designed for resilience, minimizing downtime and ensuring your cross-chain operations are always live.
99.9%
Uptime SLA
24/7
Monitoring
03
Reduced Integration Complexity
Go from concept to production in weeks, not months. We provide a standardized API and SDK, abstracting the complexity of underlying consensus mechanisms. Focus on your core logic, not bridge infrastructure.
< 3 weeks
Integration Time
1 API
Unified Interface
04
Cost-Optimized Data Relay
Achieve predictable, low-cost operations. Our gas optimization and batch processing reduce on-chain write costs by up to 40% compared to custom-built solutions, directly improving your protocol's bottom line.
~40%
Gas Savings
Predictable
Cost Model
06
Scalable Multi-Chain Support
Future-proof your architecture. Our modular design supports seamless addition of new blockchain networks (EVM, non-EVM, L2s), allowing your protocol to expand its reach without re-engineering core infrastructure.
10+
Supported Chains
Modular
Architecture
Strategic Analysis for CTOs
Build vs. Buy: Data Availability Relayer Strategy
A detailed comparison of the resource commitment, risk, and time-to-market impact of building a cross-chain data availability relayer in-house versus partnering with Chainscore Labs.
| Factor | Build In-House | Chainscore Managed Service |
|---|---|---|
Time to Production | 6-12 months | 2-4 weeks |
Initial Engineering Cost | $250K - $500K+ | $0 (Service Fee Only) |
Security & Audit Burden | High (Your Responsibility) | Low (Our Guarantee) |
Ongoing DevOps & Monitoring | Full-time SRE/DevOps Team | Included with 24/7 SLA |
Multi-Chain Protocol Support | Manual Integration per Chain | Pre-built for 15+ L1/L2s |
Data Finality Guarantee | Custom Implementation Risk | SLA-Backed < 2 Seconds |
Total Cost of Ownership (Year 1) | $500K - $1.2M | $75K - $200K |
Expertise Required | Specialized DA & Cryptography Team | Your Existing Web3 Team |
Scalability & Upgrades | Your Roadmap & Development | Handled Proactively by Us |
Business Risk | High (Single Point of Failure) | Mitigated (Enterprise-Grade Redundancy) |
how-we-deliver
PROVEN METHODOLOGY
Our Development & Deployment Process
A structured, security-first approach to building and launching your cross-chain data availability infrastructure. We deliver production-ready relayers, not just prototypes.
01
Architecture & Protocol Design
We design your relayer's core architecture, selecting optimal data availability layers (Celestia, EigenDA, Avail) and defining the cross-chain message format and security model. This ensures a scalable, cost-effective foundation.
2-3 weeks
Design Phase
3+ Protocols
Architected For
02
Smart Contract Development
Our engineers build and rigorously test the on-chain verifier and manager contracts. We implement gas-optimized logic using Solidity 0.8+ and OpenZeppelin libraries, with formal verification for critical functions.
100% Coverage
Unit Tests
OpenZeppelin
Security Standard
03
Off-Chain Relayer Implementation
We develop the high-performance off-chain service that listens, proves, and relays data. Built in Go/Rust for reliability, it includes monitoring, automatic failover, and multi-RPC endpoint support.
< 2 sec
Relay Latency
99.9% SLA
Target Uptime
04
Security Audit & Penetration Testing
Every component undergoes internal review followed by a third-party audit from firms like Spearbit or Code4rena. We conduct penetration tests on the deployed infrastructure before mainnet launch.
2+ Audits
Minimum
Critical = 0
Audit Goal
05
Staged Testnet Deployment
We deploy to a private testnet, then public testnets (Sepolia, Holesky, Arbitrum Sepolia), simulating mainnet conditions. This phase includes load testing, failure scenario drills, and validator onboarding.
4+ Networks
Tested On
10k+ TPS
Load Tested
06
Mainnet Launch & Ongoing Support
We manage the mainnet deployment with phased rollouts and real-time monitoring. Post-launch, we provide 24/7 incident response, performance optimization, and upgrade management for your relayer network.
< 48 hours
Go-Live Support
24/7
Monitoring
security
CORE SERVICE
Smart Contract Development
Secure, audited smart contracts built for production, from MVP to enterprise scale.
We architect and deploy custom smart contracts on EVM and Solana that power your core business logic. Our development is built on OpenZeppelin standards and includes formal verification for critical functions.
- Production-Ready Code: Battle-tested
Solidity 0.8+orRustwith comprehensive test suites (>95% coverage). - Security-First Process: Multi-stage audits, including automated analysis (
Slither,MythX) and manual review by our in-house experts. - Gas Optimization: We write for efficiency, reducing deployment and transaction costs by 20-40% on average.
- Full Lifecycle Support: From initial design and development through to mainnet deployment and ongoing upgrade management.
Deliver a secure, audited, and gas-optimized smart contract system in as little as 2-4 weeks for an MVP.
Cross-Chain Data Availability Relayers
Frequently Asked Questions
Common questions from CTOs and technical leads evaluating data availability infrastructure for their multi-chain applications.
Standard deployments for a production-ready cross-chain data availability relayer take 3-5 weeks. This includes architecture design, smart contract development, integration with your chosen chains (e.g., Ethereum, Arbitrum, Polygon), and a full security audit cycle. For integrations with pre-built modules or less complex chains, timelines can be as short as 2 weeks.
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