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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

Private Cross-Chain Payment Contract Development

We engineer custom smart contracts for confidential cross-chain payments and asset transfers. Our solutions use privacy-preserving bridges and ZK-proofs to obscure transaction details, enabling secure, compliant value movement across ecosystems.
Chainscore © 2026
overview
BUILD

Custom Blockchain Development

End-to-end blockchain solutions from smart contracts to full-stack dApps.

We architect and deploy production-grade blockchain systems tailored to your business logic. Our full-cycle development delivers secure, scalable applications ready for mainnet launch.

  • Smart Contract Development: Custom Solidity/Rust contracts with OpenZeppelin standards and formal verification.
  • Full-Stack dApps: Integrated frontends (React/Next.js) with ethers.js/wagmi and secure backends.
  • Protocol Design: Tokenomics, governance models, and incentive mechanisms for DeFi, NFTs, and SocialFi.
  • Rapid MVP Delivery: Go from concept to testnet in 2-4 weeks with a clear path to production.

We build the foundational infrastructure so you can focus on product-market fit and user growth.

key-features-cards
ENGINEERING EXCELLENCE

Core Technical Capabilities

We deliver production-ready, secure, and scalable private payment infrastructure. Our development process is built on verifiable expertise and proven methodologies to ensure your cross-chain solution launches on time and operates flawlessly.

05

Gas Optimization & Cost Engineering

We specialize in reducing on-chain operation costs by 40-60% through storage optimizations, batch processing, and efficient calldata structuring. This directly lowers end-user fees and improves protocol competitiveness.

40-60%
Gas Reduction
06

Production Deployment & Monitoring

End-to-end deployment with automated CI/CD, multi-sig governance setup, and real-time monitoring dashboards. We provide 24/7 alerting for failed transactions and liquidity imbalances, ensuring system reliability post-launch.

99.9%
Uptime SLA
benefits
DELIVERABLES & GUARANTEES

Business Outcomes for Your Project

Our private cross-chain payment contracts deliver measurable infrastructure advantages, from accelerated time-to-market to provable security. Here's what you can expect.

01

Accelerated Time-to-Market

Go from concept to live mainnet deployment in under 4 weeks with our battle-tested modular architecture. We handle bridge integrations, gas optimization, and testing so your team can focus on core product logic.

< 4 weeks
To Mainnet
Pre-audited
Base Code
02

Provable Security & Compliance

Every contract suite undergoes formal verification and a third-party audit (e.g., CertiK, Halborn) before delivery. We implement privacy-preserving patterns that meet regulatory standards for financial transactions.

Third-Party
Security Audit
Formal Verification
Critical Paths
03

Sub-Second Finality Across Chains

Engineered for high-frequency settlements. Our contracts leverage optimized messaging layers (like Axelar, LayerZero) to achieve reliable cross-chain confirmation in under 1 second, minimizing slippage and capital lock-up.

< 1 sec
Settlement Time
> 99.9%
Reliability SLA
04

Significant Cost Reduction

Reduce operational costs by up to 70% versus building in-house. Our gas-optimized Solidity/Vyper code and managed relayers eliminate the need for a dedicated cross-chain engineering team.

Up to 70%
OpEx Savings
Gas-Optimized
Contract Code
05

Enterprise-Grade Reliability

Built with 99.9% uptime SLAs and automated failover mechanisms. Includes 24/7 monitoring, alerting, and a dedicated support channel to ensure your payment rails never go down.

99.9%
Uptime SLA
24/7
Monitoring
06

Future-Proof Architecture

Designed for extensibility. Seamlessly integrate new blockchains, upgrade payment logic, or add features like batch processing without costly rewrites. Comes with comprehensive documentation and integration guides.

Modular
Design
Multi-Chain
Ready
Structured delivery for predictable outcomes

Phased Development & Deliverables

Our modular development process ensures transparent progress, clear milestones, and a secure, production-ready payment contract delivered on time and within budget.

Phase & DeliverablesStarterProfessionalEnterprise

Phase 1: Architecture & Design

Requirements & High-Level Design Doc

Full Technical Specification & Architecture Review

Custom Architecture with Threat Modeling & Risk Assessment

Phase 2: Core Contract Development

Base Cross-Chain Payment Logic

Advanced Logic (Batch Payments, Gas Abstraction) + Unit Tests

Full Suite (Core + Advanced + Integration Modules) with 95%+ Test Coverage

Phase 3: Security & Auditing

Automated Security Scan Report

Manual Code Review + 1 External Audit Round

Comprehensive Audit (2 Rounds) + Formal Verification (Optional)

Phase 4: Deployment & Integration

Testnet Deployment & Verification

Mainnet Deployment on 2 Chains + Basic Integration Guide

Multi-Chain Mainnet Deployment + Full Integration Support & Documentation

Phase 5: Support & Maintenance

30-Day Bug Fix Warranty

6-Month Support SLA with 24h Response

12-Month Premium SLA with 4h Response & Priority Upgrades

Typical Timeline

6-8 Weeks

10-12 Weeks

12-16 Weeks

Starting Investment

$25,000

$75,000

Custom Quote

tech-stack
security
SECURE FOUNDATIONS

Smart Contract Development

Enterprise-grade smart contract development with security-first architecture and comprehensive audit readiness.

We build production-ready smart contracts on EVM and Solana that power your core business logic. Our development process is built for security and auditability from day one, ensuring your protocol's integrity and user trust.

  • Zero critical vulnerabilities in production deployments.
  • Full integration with OpenZeppelin libraries and custom security patterns.
  • Gas-optimized code for predictable and lower transaction costs.
  • Automated testing suites covering >95% of code paths.

Deliver a fully audited, mainnet-ready contract suite in 4-6 weeks, from specification to deployment readiness.

Private Cross-Chain Payment Contracts

Frequently Asked Questions

Get clear answers on timelines, security, and process for your private cross-chain payment solution.

We deliver production-ready private cross-chain payment contracts in 2-4 weeks for standard implementations. This includes design, development, testing, and deployment to your specified testnets. Complex requirements like custom privacy primitives or support for 5+ chains may extend this to 6-8 weeks. We provide a detailed sprint plan within the first 48 hours of engagement.

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
Private Cross-Chain Payment Contracts | Chainscore Labs | ChainScore Guides