We architect and deploy custom smart contracts that form the secure, immutable backbone of your application. Our development process is built on audited code patterns and battle-tested frameworks like OpenZeppelin to mitigate risk from day one.
LABS
Services
Bridge Relayer Infrastructure Hardening
Security assessment and hardening of your off-chain bridge relayers, transaction bundlers, and keeper networks. We deliver resilient infrastructure to prevent downtime, censorship, and manipulation of cross-chain transactions.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 experts for your protocol or dApp.
Deliver a secure, auditable, and gas-optimized smart contract suite in as little as 2-4 weeks.
- Full-Stack Development: From
ERC-20/ERC-721tokens to complex DeFi logic, cross-chain bridges, and DAO governance systems. - Security-First Approach: Rigorous internal review, formal verification tools, and preparation for third-party audits by firms like CertiK or Quantstamp.
- Gas Optimization: We write efficient code to minimize transaction fees, a critical factor for user adoption and protocol economics.
key-features-cards
COMPREHENSIVE SECURITY REVIEW
Our Relayer Hardening Assessment
A systematic, expert-led evaluation of your existing bridge relayer infrastructure to identify critical vulnerabilities, performance bottlenecks, and architectural risks before they impact your users or treasury.
02
Operational Security Review
Assessment of key management, transaction signing processes, node orchestration, and disaster recovery plans to prevent private key leakage and operational downtime.
Multi-Sig
Best Practices
Zero-Trust
Architecture
03
Economic & Incentive Analysis
Evaluation of your relayer's fee model, slashing conditions, and staking mechanics to ensure they are robust against economic attacks and MEV extraction.
Sybil-Resistant
Design
Cost-Optimized
Gas Models
06
Remediation Roadmap & Implementation Support
Prioritized action plan with concrete steps to fix identified issues. Includes optional hands-on support for implementing critical security patches and upgrades.
P0-P3
Priority Ranking
2-4 Weeks
Typical Engagement
benefits
DELIVERABLES
Outcomes: Resilient Cross-Chain Operations
Our hardened bridge relayer infrastructure delivers measurable operational resilience, reducing risk and ensuring your cross-chain applications perform reliably at scale.
01
Guaranteed Message Delivery
We guarantee successful, non-revertible cross-chain message delivery with end-to-end monitoring and automated retry logic. Eliminate failed transactions and stuck user funds.
> 99.9%
Success Rate
< 30 sec
Retry Window
02
Multi-Chain Gas Management
Automated, non-custodial gas management across all supported chains. We handle gas price volatility and wallet funding, ensuring your relayer never stalls due to insufficient funds.
24/7
Wallet Monitoring
0
Manual Top-Ups
03
Proactive Security & Monitoring
24/7 security monitoring with alerts for suspicious activity, failed health checks, and gas price anomalies. Integrates with your existing PagerDuty or Slack workflows.
< 60 sec
Alert Response
Real-time
Health Dashboards
04
Redundant Relayer Architecture
Fault-tolerant, multi-region deployment with automatic failover. If a primary relayer fails, a standby instance takes over within seconds with zero data loss.
99.95%
Uptime SLA
< 5 sec
Failover Time
05
Configurable Security Policies
Define and enforce custom security rules per chain or application, including transaction volume caps, destination whitelists, and rate limiting to mitigate risk.
Granular
Rule Sets
API-Driven
Policy Updates
06
Comprehensive Audit Trail
Immutable, queryable logs for every cross-chain message, from initiation to finalization. Essential for debugging, compliance, and post-incident analysis.
100%
Message Traceability
90 days
Log Retention
Choose Your Security & Support Level
Deliverables & Engagement Timeline
A structured comparison of our Bridge Relayer Infrastructure Hardening packages, detailing deliverables, timelines, and support levels to match your project's scale and risk profile.
| Deliverable / Feature | Audit & Hardening | Managed Deployment | Enterprise SLA |
|---|---|---|---|
Comprehensive Security Audit | |||
Relayer Node Hardening Guide | |||
Gas Optimization & Fee Strategy | |||
Production Deployment Support | |||
Multi-Chain Configuration (Up to 3) | Ethereum L1 | EVM L1 + L2 | Custom (EVM & Non-EVM) |
Monitoring & Alerting Setup | Basic (Prometheus/Grafana) | Advanced (PagerDuty/Datadog) | Custom (Splunk/Internal SIEM) |
Incident Response SLA | Best Effort | 8 Business Hours | < 1 Hour |
Ongoing Security Updates | 6 Months | 12 Months | 24 Months |
Typical Timeline | 3-4 Weeks | 5-6 Weeks | 8+ Weeks (Custom) |
Estimated Investment | $25K - $50K | $75K - $150K | Custom Quote |
Bridge Relayer Infrastructure
Build, Buy, or Harden: Evaluating Your Options
A comparison of approaches for securing and operating cross-chain message relaying, from initial development to enterprise-grade hardening.
| Consideration | Build In-House | Generic Third-Party | Chainscore Hardening |
|---|---|---|---|
Time to Secure Production | 9-18 months | Immediate (but limited) | 4-12 weeks |
Initial Security Posture | High Risk (unaudited, untested) | Medium Risk (shared, opaque) | Low Risk (audited, battle-tested) |
Relayer Node Uptime SLA | Your responsibility | 99.5% (shared infra) | 99.9% (dedicated) |
Mean Time to Recovery (MTTR) | Undefined / Hours+ | Defined by provider | < 15 minutes |
Multi-Chain Support & Updates | Manual integration per chain | Limited to provider's roadmap | Proactive integration & monitoring |
Security Monitoring & Alerts | Basic self-built dashboards | Generic platform alerts | Custom threat detection & 24/7 SOC |
Total Cost of Ownership (Year 1) | $300K - $750K+ | $50K - $200K + risk premium | $80K - $250K (predictable) |
Expertise Required | Full security & DevOps team | Minimal (but high dependency) | Our team extends yours |
process-walkthrough
B2B INFRASTRUCTURE
Blockchain Infrastructure for FinTechs
Reliable, scalable node infrastructure and APIs to power your financial applications.
We provide managed blockchain nodes with 99.9% uptime SLA and multi-cloud redundancy. Access full, archive, and validator nodes for EVM chains, Solana, and Cosmos via secure, low-latency APIs.
Deploy production-ready infrastructure in days, not months, with enterprise-grade security and 24/7 monitoring.
- High-Performance RPC/API: Global endpoints with <100ms latency and automatic load balancing.
- Real-Time Data Feeds: Indexed event streams, transaction mempools, and on-chain analytics.
- Compliance & Security:
SOC 2 Type IIcompliant infrastructure with dedicated VPCs and audit trails.
Technical Deep Dive
Bridge Relayer Hardening FAQs
Common questions from CTOs and engineering leads about securing cross-chain infrastructure.
A standard hardening engagement takes 2-4 weeks from kickoff to production deployment. This includes a 1-week security audit, 1-2 weeks for implementation of fixes and upgrades, and a final week for testing and deployment. Complex multi-chain setups or custom consensus mechanisms can extend this to 6-8 weeks. We provide a detailed project plan within 48 hours of the initial scoping call.
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