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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

Modular Payment Smart Contract Library Creation

We design, build, and audit reusable smart contract libraries that encapsulate complex payment logic, reducing your core development time by 60-80%.
Chainscore © 2026
overview
CORE SERVICES

Smart Contract Development

Secure, production-ready smart contracts built by certified auditors for any EVM or Solana protocol.

We architect and deploy custom smart contracts that are secure, gas-optimized, and ready for mainnet. Our team of certified auditors writes code that protects your assets and your users, using battle-tested patterns from OpenZeppelin and Solmate.

From token launches to complex DeFi logic, we deliver contracts that execute flawlessly under load, with 99.9% uptime SLAs and comprehensive test coverage exceeding 95%.

  • Token Systems: Custom ERC-20, ERC-721, ERC-1155, and SPL tokens with advanced features like vesting, staking, and governance.
  • DeFi & DEX: Automated Market Makers (AMMs), liquidity pools, yield aggregators, and lending protocols.
  • Security First: Every contract undergoes rigorous internal audits and is built to pass third-party audits from firms like CertiK and Quantstamp.
  • Full Lifecycle Support: Development, deployment, verification on Etherscan/Solscan, and ongoing maintenance.
key-features-cards
A FOUNDATION YOU CAN TRUST

Engineered for Security and Reusability

Our modular payment smart contract library is built with enterprise-grade security and developer experience at its core, enabling you to launch faster and scale with confidence.

02

Gas-Optimized for Production

Contracts are meticulously crafted for minimal gas consumption. We leverage Solidity 0.8+ best practices, assembly for critical paths, and storage optimization to reduce your users' transaction costs by up to 40% compared to naive implementations.

Up to 40%
Gas Reduction
Solidity 0.8+
Compiler
03

Modular & Composable Architecture

A library of independent, interoperable modules for payments, subscriptions, escrow, and multi-sig. Mix and match components to build custom payment flows without vendor lock-in or redundant code.

10+
Core Modules
Fully Upgradeable
Design
04

Comprehensive Audit Readiness

Delivered with a full suite of Foundry tests, NatSpec documentation, and security checklists. Our code is structured to streamline third-party audits from firms like CertiK or Quantstamp, reducing review time and cost.

100%
Test Coverage
Full NatSpec
Documentation
05

Multi-Chain Deployment Ready

Designed for portability across EVM-compatible chains (Ethereum, Polygon, Arbitrum, Base). Includes configuration management and chain-specific adapters to deploy your payment system anywhere in weeks, not months.

EVM
Compatible
< 3 weeks
Cross-Chain Setup
06

Developer-First Tooling & Support

Get more than code. We provide detailed integration guides, a local development environment, and direct access to our engineers for implementation support, ensuring your team can own and extend the system.

24h
Initial Support
Full Guides
Included
benefits
DELIVERABLES & ROI

Business Outcomes: From Code to Market Advantage

Our modular payment smart contract library is engineered to deliver measurable business results. We translate complex blockchain code into clear competitive advantages, accelerating your time-to-market while ensuring security and scalability.

01

Accelerated Time-to-Market

Deploy production-ready payment modules in weeks, not months. Our pre-audited, modular components eliminate the need for foundational development, allowing your team to focus on product differentiation and user experience.

2-4 weeks
Integration Time
80%
Code Reuse
02

Enterprise-Grade Security & Compliance

Build on a foundation of trust. Every module is built with OpenZeppelin standards, undergoes rigorous internal audits, and is designed for compliance with financial regulations, significantly reducing your audit costs and security risks.

100%
OpenZeppelin Based
50%
Lower Audit Cost
03

Gas-Optimized & Scalable Architecture

Maximize user adoption and minimize operational costs. Our library is engineered for sub-cent transaction fees on L2s and high throughput, ensuring your payment system remains cost-effective as you scale to millions of users.

< $0.01
Avg. Tx Cost (L2)
10k+
TPS Capacity
04

Future-Proof Flexibility

Adapt to market changes without costly rewrites. The modular design allows you to seamlessly upgrade payment logic, integrate new tokens (ERC-20, ERC-1155), or add features like subscriptions and cross-chain settlements as your business evolves.

Zero
Breaking Upgrades
1-2 days
Feature Integration
Modular Payment Smart Contract Library

Build vs. Buy: The Time and Risk Trade-off

A detailed comparison of the total cost of ownership for developing a secure, production-ready payment infrastructure in-house versus leveraging Chainscore's battle-tested library.

FactorBuild In-HouseBuy with Chainscore

Time to Production

6-12 months

4-8 weeks

Initial Development Cost

$150K - $400K+

$25K - $75K

Security Audit Requirement

High (Mandatory)

Included (Pre-Audited)

Ongoing Maintenance & Upgrades

2-3 FTE Engineers

Optional SLA from $15K/year

Integration Complexity

High (Custom R&D)

Low (Standardized APIs)

Multi-Chain Support

Per-Chain Development

Pre-built for EVM L1/L2

Compliance Features (e.g., OFAC)

Custom Implementation

Modular, Built-in Components

Total Year 1 Cost (Est.)

$300K - $600K+

$40K - $90K

how-we-deliver
PREDICTABLE DELIVERY

Our Delivery Process: From Specification to Integration

A structured, four-phase approach to deliver a secure, audited, and production-ready modular payment library in 6-8 weeks.

01

Phase 1: Specification & Architecture

We translate your business logic into a detailed technical specification and system architecture. This includes defining module interfaces (e.g., payment routing, fee management), token standards (ERC-20, ERC-777), and integration points with your existing stack.

1-2 weeks
Duration
100%
Requirement Clarity
02

Phase 2: Core Development & Testing

Our senior Solidity engineers build the library modules using OpenZeppelin standards. Development is paired with comprehensive unit and integration testing (Hardhat/Foundry) to ensure functional correctness and gas efficiency from day one.

3-4 weeks
Duration
> 95%
Test Coverage
03

Phase 3: Security Audit & Optimization

The completed library undergoes a rigorous internal security review followed by a formal audit from a partner firm like Spearbit or Code4rena. We implement all findings and perform final gas optimization passes before deployment readiness.

2 weeks
Duration
Zero Critical
Audit Target
04

Phase 4: Deployment & Integration Support

We deploy the verified contracts to your target networks (EVM L1/L2) and provide comprehensive integration support. This includes developer documentation, example implementations, and 30 days of post-launch technical support.

1 week
Duration
30 days
Support Included
security
CORE SERVICE

Smart Contract Development

Secure, audited smart contracts built for production and scale.

We architect and deploy custom smart contracts on EVM and Solana that power your core business logic. Our development process is built for security-first deployment.

  • Production-Ready Code: Built with Solidity 0.8+ and Rust, using battle-tested libraries like OpenZeppelin and Anchor.
  • Full Audit Trail: Every contract undergoes internal review and is prepared for third-party audits from firms like CertiK or Quantstamp.
  • Gas Optimization: We minimize transaction costs, targeting up to 40% gas reduction versus unoptimized benchmarks.

From token standards (ERC-20, ERC-721) to complex DeFi primitives, we deliver contracts you can trust to secure millions in TVL.

Deliverables include: finalized source code, comprehensive technical documentation, deployment scripts, and a security review report.

Modular Payment Library

Frequently Asked Questions

Common questions from CTOs and engineering leads about our modular smart contract library development service.

Our process follows a structured 4-phase approach: Discovery & Scoping (1 week), Architecture & Design (1-2 weeks), Development & Testing (2-4 weeks), and Deployment & Handoff (1 week). For a standard modular payment library with 5-10 core modules (e.g., escrow, subscriptions, split payments), the total timeline is typically 4-8 weeks. We provide a fixed-price proposal after the discovery phase, locking in scope, deliverables, and timeline.

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
Modular Payment Smart Contract Library | Chainscore Labs | ChainScore Guides