Multi-Chain NFT & Fungible Token Bridge Development | Chainscore Labs

overview

CORE SERVICE

Smart Contract Development

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

We architect and deploy audited, gas-optimized smart contracts on EVM and Solana that power your core business logic. Our development process ensures zero critical vulnerabilities and 99.9% uptime SLA from day one.

Custom Logic: ERC-20, ERC-721, ERC-1155, DeFi primitives, DAO governance, and bespoke protocols.
Security First: Full audit trail with OpenZeppelin libraries, formal verification, and third-party audit preparation.
Deployment Ready: Includes comprehensive testing, gas profiling, and mainnet deployment scripts.

Reduce your time-to-market from months to weeks with our battle-tested development framework.

We deliver production-grade contracts in 2-4 weeks, complete with documentation and a security review report. Our engineers specialize in complex integrations like cross-chain bridges, oracle feeds from Chainlink or Pyth, and upgradeable proxy patterns using EIP-1967.

key-features-cards

ENGINEERING EXCELLENCE

Core Technical Capabilities

Our bridge infrastructure is built on a foundation of battle-tested engineering principles, delivering enterprise-grade reliability, security, and performance for your cross-chain token strategy.

Multi-Chain Smart Contract Architecture

Custom, audited bridge contracts for Ethereum, Polygon, Arbitrum, Optimism, and other EVM-compatible chains. We implement gas-optimized logic for mint/burn and lock/unlock mechanisms, ensuring protocol-level security and efficiency.

EVM+

Chain Support

OpenZeppelin

Security Standard

Secure Relayer & Validator Network

A decentralized, permissioned network of validators with multi-signature consensus for transaction finality. Our infrastructure eliminates single points of failure and provides cryptographic proof for all cross-chain state transitions.

> 5/7

Threshold Signing

Zero Trust

Architecture

Gas Optimization & Cost Management

Proprietary algorithms for dynamic fee estimation and batch processing reduce end-user gas costs by up to 40%. We implement efficient data structures and calldata compression for L2s.

~40%

Gas Savings

Real-time

Fee Engine

Real-Time Monitoring & Alerting

24/7 monitoring of bridge health, liquidity pools, and validator status with automated alerts for anomalies. Full audit trails and dashboards provide operational transparency for your team.

24/7

Monitoring

< 60s

Alert Time

Comprehensive Audit & Security Posture

All bridge components undergo rigorous audits by third-party firms. We maintain a proactive security posture with bug bounty programs and continuous penetration testing.

Developer SDK & API Integration

RESTful APIs and TypeScript/Go SDKs for seamless integration into your dApp or wallet. Includes webhook support for transaction lifecycle events and comprehensive documentation.

TypeScript/Go

SDKs

REST/Webhook

APIs

benefits

TANGIBLE RESULTS

Business Outcomes for Your Project

Our multi-chain bridge engineering delivers measurable infrastructure advantages, reducing technical debt and accelerating your market entry.

Accelerated Time-to-Market

Deploy a production-ready, audited bridge in under 4 weeks. Our modular architecture and battle-tested relayers eliminate months of R&D, allowing you to launch your cross-chain NFT or token strategy ahead of schedule.

< 4 weeks

To Production

Protocol R&D Cost

Enterprise-Grade Security & Compliance

Bridge contracts are built with OpenZeppelin libraries and undergo rigorous third-party audits (e.g., Halborn, CertiK). We implement formal verification for critical logic, ensuring asset safety and meeting institutional security requirements.

100%

Audit Coverage

Formal Verification

Critical Modules

Optimized Total Cost of Ownership

Reduce long-term operational costs by over 60%. Our managed relayers and gas optimization strategies for EVM, Solana, and Cosmos SDK chains lower your infrastructure spend, with predictable monthly billing instead of variable cloud costs.

> 60%

OpEx Reduction

Predictable

Monthly Cost

Seamless Multi-Chain User Experience

Deliver sub-2-minute cross-chain transfers with a unified interface. Our SDK handles wallet and chain abstraction, providing a frictionless experience for users moving assets between Ethereum, Polygon, Arbitrum, Solana, and other supported networks.

< 2 min

Average Transfer

1-Click

User Flow

Future-Proof Architecture

Easily integrate new chains (Aptos, Sui, Layer 2s) via our modular adapter system. Avoid vendor lock-in with our open-source core components, giving you full control to extend functionality as the ecosystem evolves.

Institutional Liquidity & Settlement

Enable high-volume, secure transfers for market makers and enterprises. Our bridge supports custom settlement layers and MPC-based custody options, facilitating the movement of fungible and non-fungible assets at scale with full audit trails.

Enterprise SLA

99.95% Uptime

MPC Custody

Optional Integration

Structured Delivery for Your Token Bridge

Phased Development & Deliverables

A transparent breakdown of our phased development process, deliverables, and support levels for multi-chain token bridge projects.

Phase & Deliverable	Starter	Professional	Enterprise
Phase 1: Architecture & Smart Contracts
Bridge Core (Solidity/Rust)	Basic	Advanced	Custom
Multi-Chain Relayer
Security Audit (External)	Optional	Included	Included + 2nd Audit
Phase 2: Frontend & Integration
Admin Dashboard	Basic UI	Custom UI/UX	White-labeled
API & SDK for Integration	REST API	REST + WebSocket	Full Suite + Dedicated Docs
Phase 3: Deployment & Go-Live
Multi-Chain Deployment Support		Up to 3 Chains	Unlimited Chains
Initial Load Testing		Simulated	Real-world Simulation
Ongoing: Support & Maintenance	Email (Biz Hours)	24/7 Slack + PagerDuty	Dedicated SRE Team
Guaranteed Response Time SLA	48h	4h	30 min
Typical Project Timeline	6-8 weeks	8-12 weeks	12-16 weeks
Starting Project Cost	$50K	$150K	Custom Quote

how-we-deliver

PREDICTABLE DELIVERY

Our Development Process

A structured, transparent approach from concept to mainnet deployment. We deliver secure, scalable bridges with clear milestones and continuous integration.

Architecture & Design

We design a modular bridge architecture tailored to your token standards (ERC-20, ERC-721, ERC-1155) and target chains (EVM, Solana, Cosmos). Includes security-first design patterns and gas optimization analysis.

2-4 days

Design Sprint

3+ Chains

Architected For

Smart Contract Development

Implementation of core bridge logic, mint/burn mechanisms, and governance modules in Solidity 0.8+ or Rust. All contracts follow OpenZeppelin standards and include comprehensive unit/integration tests.

100% Coverage

Test Target

OpenZeppelin

Standards

Security Audit & Hardening

Rigorous multi-phase security review. Includes automated analysis (Slither), manual code review by our senior auditors, and a formal audit report. We remediate all critical/high issues before proceeding.

2+ Audits

Minimum Phases

0 Critical

Post-Audit

Relayer & Frontend Integration

Deployment of off-chain relayers for message passing and event listening. Development of a user-friendly frontend dApp for token bridging with real-time status tracking and wallet connectivity.

< 30 sec

Relayer Latency

Wagmi/Viem

Frontend Stack

Testnet Deployment & QA

Full deployment on designated testnets (Sepolia, Goerli, etc.). Execution of end-to-end QA cycles, including cross-chain transaction flow, failure scenarios, and load testing under simulated mainnet conditions.

200+

Test Cases

99.9%

Success Rate Target

Mainnet Launch & Monitoring

Coordinated mainnet deployment with phased roll-out strategy. We establish 24/7 monitoring with alerts for bridge health, liquidity levels, and security events, ensuring operational excellence from day one.

24/7

Monitoring

< 4 hrs

Incident Response SLA

security

CORE SERVICE

Smart Contract Development

Secure, gas-optimized smart contracts built for production by Web3-native engineers.

We architect and deploy custom smart contracts that form the immutable logic layer of your application. Our development process is built for security-first deployment, ensuring your core business logic is protected from day one.

Full-Stack Development: From ERC-20 tokens and ERC-721 NFTs to complex DeFi protocols and DAO governance systems.
Security by Design: Contracts are built with OpenZeppelin libraries, undergo rigorous internal audits, and are prepared for third-party review.
Gas Optimization: Every line of Solidity 0.8+ code is written for minimum execution cost, critical for user adoption and scalability.

We deliver production-ready contracts with comprehensive documentation and a clear path to mainnet deployment in as little as 2-4 weeks.

Multi-Chain Bridge Development

Frequently Asked Questions

Get clear answers on timelines, security, and process for building a custom, secure token bridge.

A standard multi-chain bridge with core mint/burn and lock/unlock mechanisms typically deploys in 4-6 weeks. Complex features like custom governance, advanced relayer networks, or support for 5+ chains can extend this to 8-12 weeks. We provide a detailed project plan with weekly milestones after the initial technical scoping.

Multi-Chain NFT & Fungible Token Bridge

Smart Contract Development

Core Technical Capabilities

Multi-Chain Smart Contract Architecture

Secure Relayer & Validator Network

Gas Optimization & Cost Management

Real-Time Monitoring & Alerting

Comprehensive Audit & Security Posture

Developer SDK & API Integration

Business Outcomes for Your Project

Accelerated Time-to-Market

Enterprise-Grade Security & Compliance

Optimized Total Cost of Ownership

Seamless Multi-Chain User Experience

Future-Proof Architecture

Institutional Liquidity & Settlement

Phased Development & Deliverables

Our Development Process

Architecture & Design

Smart Contract Development

Security Audit & Hardening

Relayer & Frontend Integration

Testnet Deployment & QA

Mainnet Launch & Monitoring

Smart Contract Development

Frequently Asked Questions

Get a free quote.

Get In Touch
today.

Multi-Chain NFT & Fungible Token Bridge

Smart Contract Development

Core Technical Capabilities

Multi-Chain Smart Contract Architecture

Secure Relayer & Validator Network

Gas Optimization & Cost Management

Real-Time Monitoring & Alerting

Comprehensive Audit & Security Posture

Developer SDK & API Integration

Business Outcomes for Your Project

Accelerated Time-to-Market

Enterprise-Grade Security & Compliance

Optimized Total Cost of Ownership

Seamless Multi-Chain User Experience

Future-Proof Architecture

Institutional Liquidity & Settlement

Phased Development & Deliverables

Our Development Process

Architecture & Design

Smart Contract Development

Security Audit & Hardening

Relayer & Frontend Integration

Testnet Deployment & QA

Mainnet Launch & Monitoring

Smart Contract Development

Frequently Asked Questions

Get In Touch today.

Get In Touch
today.