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Full-Stack Web3 dApp Development
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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

Cross-Chain Messaging SDK Development

We build developer-friendly SDKs and APIs that abstract the complexity of underlying interoperability protocols, enabling your dApp to send messages and assets across rollups with minimal integration effort.
Chainscore © 2026
overview
CORE SERVICE

Smart Contract Development

Secure, audited smart contracts built by experts for production-ready applications.

We architect and deploy custom Solidity/Rust smart contracts that form the immutable backbone of your Web3 product. Our development process integrates formal verification and industry-standard audits to ensure security from day one.

  • Production-Ready Code: Built with OpenZeppelin libraries and battle-tested patterns.
  • Gas Optimization: Contracts designed for minimum execution cost and maximum efficiency.
  • Full Audit Trail: Deliverables include comprehensive documentation and a Verification Report.

Deploy with confidence. Our contracts power live applications handling millions in TVL, with a 0 critical vulnerability track record post-audit.

key-features-cards
BUILT FOR SCALE

Core SDK Capabilities We Deliver

Our Cross-Chain Messaging SDK is engineered for production, providing the foundational building blocks your team needs to launch and scale secure, reliable cross-chain applications.

01

Unified Abstraction Layer

A single, consistent API for interacting with major messaging protocols (LayerZero, Axelar, Wormhole, CCIP). Eliminate protocol-specific complexity and future-proof your application.

4+
Protocols Supported
15+
Chains Integrated
02

Gas-Optimized Message Relaying

Intelligent gas estimation and fee management for cross-chain calls. Our SDK handles complex fee structures, ensuring transactions are relayed cost-effectively without compromising speed.

Up to 40%
Gas Savings
< 5 sec
Relay Initiation
03

Enterprise-Grade Security

Built with security-first principles. Includes automatic payload validation, replay attack protection, and integration with OpenZeppelin Defender for secure relay operations.

0
Critical Vulnerabilities
Audited
Codebase
04

Modular Composability

Plug-and-play modules for common cross-chain patterns: token bridging, generic messaging, and contract calls. Accelerate development by integrating pre-built, audited logic.

10+
Pre-built Modules
2 weeks
Avg. Dev Time Saved
05

Real-Time Monitoring & Alerts

Comprehensive dashboards and webhook integrations for tracking message lifecycle (sent, in-flight, delivered, failed). Proactively manage your cross-chain operations.

99.9%
Uptime SLA
< 60 sec
Alert Latency
06

Multi-Chain State Management

Synchronize and manage application state across heterogeneous chains. Our SDK provides utilities for handling nonces, retry logic, and idempotent operations to guarantee consistency.

Guaranteed
Delivery
Automatic
Retry Logic
benefits
DELIVERABLES & GUARANTEES

Business Outcomes for Your Team

Our Cross-Chain Messaging SDK delivers concrete technical and business results, designed to accelerate your product roadmap and reduce operational risk.

01

Production-Ready SDK in 4-6 Weeks

We deliver a fully integrated, documented, and tested SDK for your target chains (e.g., Ethereum, Polygon, Arbitrum) within a guaranteed timeline, accelerating your time-to-market.

4-6 weeks
Guaranteed Delivery
100%
On-Time Rate
02

Zero Message Failures SLA

Guaranteed message delivery with built-in retry logic and state reconciliation. Our architecture ensures atomic cross-chain state updates, eliminating data loss.

99.99%
Delivery Success
< 2 min
Max Finality Time
03

Gas Cost Reduction up to 40%

Optimized message payloads and relay strategies significantly reduce end-user transaction costs compared to generic bridging solutions, improving your app's adoption.

30-40%
Avg. Gas Savings
Optimized
For L2s & Rollups
05

Seamless Multi-Chain User Experience

Abstract away chain complexity for your users. We implement intuitive wallet connectors, chain detection, and unified transaction flows that work across EVM and non-EVM networks.

5+
Chains Supported
Single UI
Unified Interface
06

Dedicated Technical Partnership

Beyond code delivery, you get direct access to our protocol engineers for integration support, best practice guidance, and roadmap planning for future chain expansions.

Direct Slack
With Engineers
Priority
Support SLA
Choose Your Integration Path

Structured Development Tiers

Compare our tailored packages for building secure, production-ready cross-chain applications. Each tier includes our modular SDK, with support and security scaled to your needs.

Core DeliverablesStarterProfessionalEnterprise

Modular Cross-Chain SDK

Pre-built Connectors (EVM, Cosmos, Solana)

5 chains

12+ chains

All major chains

Custom Bridge Logic Development

Basic

Advanced

Full Customization

Smart Contract Audit (by Partner Firm)

1 Protocol

Up to 3 Protocols

Unlimited for Project

Gas Optimization & Fee Abstraction

Relayer Infrastructure & Monitoring

Self-hosted guide

Managed for 6 months

Fully Managed + SLA

Integration Support & Time to Production

Documentation & 10h support

Hands-on development & < 8 weeks

Dedicated Team & < 4 weeks

Post-Launch Security Monitoring

Incident alerting

24/7 Monitoring & Response

Typical Project Scope

MVP / Proof-of-Concept

Production DApp / New Chain

Mission-Critical Enterprise System

Starting Engagement

$25K

$80K

Custom Quote

tech-stack
PRODUCTION-READY INFRASTRUCTURE

Protocols & Technologies We Integrate

Our SDK is built on battle-tested, audited protocols to ensure secure, reliable, and performant cross-chain messaging for your application.

how-we-deliver
CORE SERVICE

Smart Contract Development

Secure, production-ready smart contracts built for scale and compliance.

We architect and deploy audit-ready smart contracts that power your core business logic. Our team specializes in Solidity 0.8+ and Rust for Solana, implementing battle-tested patterns from OpenZeppelin and Anchor to ensure security from day one.

  • Token Systems: Custom ERC-20, ERC-721, and ERC-1155 contracts with advanced features like vesting, minting controls, and tax mechanics.
  • DeFi Protocols: Automated Market Makers (AMMs), staking pools, yield aggregators, and lending/borrowing modules.
  • Governance & DAOs: On-chain voting, treasury management, and proposal systems using standards like ERC-5805 (Governor).
  • Enterprise Logic: Custom business logic for asset tokenization, supply chain, and verifiable credentials.

We deliver a comprehensive audit package with every contract, including unit tests, integration tests, and a formal verification report, ensuring your mainnet launch is secure and on schedule.

Cross-Chain SDK

Frequently Asked Questions

Get clear, technical answers about our development process, security, and support for your cross-chain messaging project.

For a production-ready SDK connecting 2-3 major EVM chains, typical delivery is 4-6 weeks. This includes protocol integration, security audits, and comprehensive testing. Complex deployments with non-EVM chains or custom bridging logic may extend to 8-10 weeks. We provide a detailed project plan with weekly milestones after 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
24h Response
Directly to Engineering Team
10+
Protocols Shipped
$20M+
TVL Overall
NDA Protected Directly to Engineering Team