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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 Smart Contract Development

Design and deploy secure, interoperable smart contracts that function seamlessly across multiple blockchain ecosystems (EVM, Solana, Cosmos, etc.), enabling unified application logic and state management.
Chainscore © 2026
overview
CORE INFRASTRUCTURE

Custom Smart Contract Development

Secure, production-ready smart contracts built for your specific business logic and compliance needs.

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 rigorous testing to ensure reliability from day one.

  • Protocol-Specific Logic: Custom ERC-20, ERC-721, and ERC-1155 tokens, DeFi primitives, DAO governance, and bespoke business rules.
  • Security-First Development: Built with OpenZeppelin libraries and Solidity 0.8+, following industry best practices to mitigate reentrancy, overflow, and access control risks.
  • Full Development Lifecycle: From initial specification and architecture to deployment, verification on Etherscan, and ongoing maintenance.

Move from concept to a live, audited mainnet contract in as little as 2-4 weeks.

We deliver contracts that are gas-optimized, upgradeable where required, and designed for your target EVM chain (Ethereum, Polygon, Arbitrum, Base). Every contract undergoes unit testing, integration testing, and a final security review before deployment.

key-features-cards
BUILDING THE INTERCHAIN BACKBONE

Core Technical Capabilities

Our engineering team delivers battle-tested, production-ready cross-chain infrastructure. We focus on security, interoperability, and developer experience to reduce your time-to-market and technical risk.

benefits
DELIVERABLES

Business Outcomes for Your Multi-Chain Strategy

Our cross-chain development service delivers tangible results, moving beyond technical implementation to measurable business impact. We focus on outcomes that accelerate your time-to-market and secure your competitive edge.

01

Accelerated Time-to-Market

Deploy production-ready, audited cross-chain applications in under 6 weeks. Our standardized development framework and battle-tested libraries eliminate months of R&D, allowing you to capture market opportunities faster.

< 6 weeks
To Production
80%
Faster Build Time
02

Reduced Infrastructure Overhead

Eliminate the cost and complexity of managing multiple bridge validators, relayers, and RPC nodes. We provide a fully managed, secure interoperability layer, cutting your operational overhead by over 60%.

> 60%
Lower OpEx
24/7
Managed SRE
03

Enhanced Security & Trust

Every cross-chain contract suite undergoes formal verification and audits by partners like Trail of Bits and CertiK. We implement industry-leading security patterns to protect user funds and your protocol's reputation.

100%
Audit Coverage
Zero
Critical Bugs Shipped
04

Optimized User Experience

Deliver seamless, sub-2-minute cross-chain transactions with unified liquidity. Our architecture abstracts chain complexity, providing a single, intuitive interface that boosts user retention and transaction volume.

< 2 min
Cross-Chain Tx Time
40%+
Higher User Retention
05

Future-Proof Architecture

Build on a modular framework that integrates new L1s and L2s (Ethereum, Arbitrum, Base, Solana) in days, not months. Stay agile and instantly support emerging chains without costly rewrites.

< 5 days
New Chain Integration
Modular
Upgradeable Design
06

Guanteed Reliability & Uptime

Maintain 99.9% SLA on all cross-chain messaging with automated failover and 24/7 monitoring. Our redundant, decentralized relay network ensures your application is always available for users.

99.9%
Uptime SLA
< 30 sec
Failover Time
how-we-deliver
A PROVEN FRAMEWORK

Our Development & Deployment Process

From concept to mainnet, our battle-tested process ensures your cross-chain application is secure, scalable, and ready for production. We deliver predictable timelines and enterprise-grade quality.

01

Architecture & Design

We design your multi-chain architecture using proven patterns (e.g., LayerZero, Axelar, Wormhole) and create detailed technical specifications. This phase ensures your system is future-proof and cost-efficient.

3-5 days
Design Sprint
100%
Spec Coverage
02

Smart Contract Development

Our engineers write production-grade Solidity/Vyper contracts using OpenZeppelin libraries. We implement gas optimization, reentrancy guards, and upgradeability patterns from day one.

OpenZeppelin
Security Standard
Solidity 0.8+
Latest Compiler
03

Security & Audit

Every contract undergoes rigorous internal review followed by automated analysis (Slither, MythX). We prepare comprehensive audit packages for third-party firms like CertiK or Quantstamp.

2+ Reviews
Peer & Automated
Audit-Ready
Deliverable
04

Multi-Chain Deployment

We manage the full deployment lifecycle across your target chains (EVM, L2s, etc.), including testnet validation, mainnet deployment scripts, and verification on block explorers.

Automated
Deployment Scripts
5+ Chains
Supported
05

Integration & Testing

We build and execute comprehensive test suites (unit, integration, fork testing) and integrate your contracts with frontends, oracles, and indexers. Includes cross-chain message simulation.

>95%
Code Coverage
Hardhat/Foundry
Testing Suite
06

Monitoring & Support

Post-launch, we provide monitoring dashboards for cross-chain message status, contract health, and set up alerting. Includes 30 days of launch support and documentation handoff.

24/7
Alerting
Full Docs
Knowledge Transfer
Cross-Chain Smart Contract Solutions

Structured Development Packages

Compare our tiered packages for secure, scalable cross-chain smart contract development, from MVP to enterprise-grade production systems.

Feature / DeliverableStarterProfessionalEnterprise

Cross-Chain Architecture Design

Solidity/Vyper Smart Contract Development

Up to 3 contracts

Up to 10 contracts

Unlimited scope

Primary Chain Deployment

Ethereum or 1 L2

2 Chains (EVM)

3+ Chains (EVM & non-EVM)

Security Audit (Internal)

Basic Review

Comprehensive Audit

Comprehensive Audit + 3rd Party Coordination

Bridge/Relayer Integration

CCIP or Axelar

Custom Configurable Relayer

Dedicated, Optimized Relayer

Testing & Deployment Support

Testnets only

Mainnet Deployment

Mainnet + CI/CD Pipeline

Post-Launch Monitoring

30 days

90 days

24/7 with SLA

Incident Response Time

Best effort

< 24 hours

< 4 hours (SLA)

Team Expertise

Senior Developer

Lead Developer + Architect

Dedicated Pod (Dev, QA, DevOps)

Estimated Timeline

3-5 weeks

6-10 weeks

Custom (10+ weeks)

Starting Price

$25,000

$75,000

Custom Quote

Cross-Chain Smart Contract Development

Build vs. Buy vs. Chainscore

A clear comparison of approaches for launching secure, production-ready cross-chain applications.

Key FactorBuild In-HouseGeneric VendorChainscore

Time to First Deployment

6-12+ months

8-16 weeks

4-8 weeks

Initial Security Posture

High Risk (unaudited)

Medium Risk (generic audit)

Low Risk (custom audit)

Multi-Chain Architecture

Your team designs

Limited templates

Custom, gas-optimized design

Ongoing Protocol Updates

Your team manages

Slow, version-based

Proactive monitoring & patching

Developer Support

Hire & train team

Ticket-based (48h+ SLA)

Dedicated engineer (4h SLA)

Total Year 1 Cost (Est.)

$250K - $750K+

$120K - $300K

$80K - $200K

Guaranteed Uptime SLA

None

99.5%

99.9%

Audit & Compliance Ready

No

Basic report

Full report + remediation

Technical & Commercial Insights

Cross-Chain Development FAQs

Answers to the most common questions from CTOs and founders evaluating cross-chain smart contract development partners.

From specification to mainnet launch, a standard cross-chain application takes 4-8 weeks. This includes 1-2 weeks for architecture design, 2-4 weeks for core development and internal testing, and 1-2 weeks for security audits and final deployment. Complex protocols with custom consensus or novel tokenomics may extend to 12+ weeks. We provide a detailed sprint-by-sprint roadmap during discovery.

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
Cross-Chain Smart Contract Development | Chainscore Labs | ChainScore Guides