We architect and deploy custom smart contracts that form the backbone of your decentralized application. Our development process is built on security-first principles, utilizing battle-tested libraries like OpenZeppelin and comprehensive audit workflows.
LABS
Services
EVM-Compatible POS Terminal Development
End-to-end development of secure, compliant point-of-sale terminals that integrate with EVM chains, enabling merchants to accept a wide range of ERC-20 tokens and NFTs with familiar retail workflows.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3-native engineers.
From tokenomics to complex DeFi logic, we translate your business requirements into immutable, gas-efficient code on the blockchain of your choice.
- Full-Stack Development: End-to-end creation of
ERC-20,ERC-721,ERC-1155, and custom protocol logic. - Security & Auditing: Multi-stage review process, including formal verification and third-party audit preparation.
- Gas Optimization: Code engineered for minimum transaction costs and maximum user savings.
- Mainnet Deployment: Managed launch support with monitoring and incident response plans.
key-features-cards
BUILT FOR ENTERPRISE
Core Technical Capabilities
We deliver production-ready EVM-compatible payment terminals with enterprise-grade security, compliance, and performance. Our modular architecture ensures rapid integration and future-proof scalability.
benefits
TANGIBLE RESULTS
Business Outcomes for Your Platform
Our EVM-compatible POS terminal development delivers measurable improvements in transaction efficiency, security, and user experience, directly impacting your bottom line.
01
Instant Crypto Settlements
Enable merchants to receive payments in stablecoins or native tokens with sub-2-second finality, eliminating traditional settlement delays and improving cash flow.
< 2 sec
Settlement Time
24/7/365
Settlement Window
02
Enterprise-Grade Security & Compliance
Deploy with confidence using audited smart contracts, MPC wallet infrastructure, and built-in tools for transaction monitoring and regulatory reporting.
SOC 2 Type II
Compliance
Zero
Smart Contract Exploits
03
Seamless Omnichannel Integration
Integrate crypto payments into existing e-commerce platforms (Shopify, WooCommerce), mobile apps, and in-store hardware via unified APIs, preserving user experience.
< 2 weeks
API Integration
99.9%
API Uptime SLA
04
Reduced Payment Processing Costs
Cut intermediary fees by 60-80% compared to traditional card networks by leveraging direct on-chain settlements and optimized gas strategies.
60-80%
Fee Reduction
< 0.5%
Avg. Transaction Cost
05
Global Market Access & FX Elimination
Accept payments from any jurisdiction without currency conversion hurdles. Settle directly in USDC, EURC, or other major stablecoins.
150+
Countries Supported
0%
FX Margin
06
Real-Time Analytics & Reconciliation
Gain instant visibility into payment flows, merchant settlements, and network fees through a dedicated dashboard with webhook alerts and exportable reports.
Real-Time
Data Latency
Automated
Daily Reconciliation
Structured for Growth
Phased Development Tiers
Choose the right development and support package for your EVM-compatible POS terminal, from initial launch to enterprise-scale operations.
| Feature / Capability | Launch Tier | Scale Tier | Enterprise Tier |
|---|---|---|---|
Custom Smart Contract Development | |||
Gas-Optimized Payment Logic | |||
On-Chain & Off-Chain Settlement | Basic | Advanced | Hybrid (Custom) |
Smart Contract Security Audit | Single Protocol | Multi-Protocol | Continuous (Quarterly) |
Multi-Chain Deployment Support | 1 Network | Up to 3 Networks | Unlimited Networks |
Integration: Wallets & Payment Rails | Major Wallets | Wallets + Fiat On/Off Ramps | Full Suite + Custom APIs |
Backend API & Dashboard | Core Features | Advanced Analytics | White-Label & Custom |
Post-Launch Support SLA | Business Hours | 24/7 Monitoring | 24/7 Dedicated Engineer |
Incident Response Time | Next Business Day | < 4 Hours | < 1 Hour |
Estimated Timeline | 6-8 Weeks | 10-14 Weeks | Custom |
Typical Investment | $25K - $50K | $75K - $150K | Contact for Quote |
how-we-deliver
TRANSPARENT & PREDICTABLE
Our Development Process
A structured, milestone-driven approach that ensures your EVM-compatible POS terminal is delivered on time, on budget, and with enterprise-grade security.
01
Discovery & Architecture
We analyze your business logic, tokenomics, and compliance needs to design a scalable system architecture. This phase defines the smart contract suite (ERC-20, ERC-1155 for NFTs), payment flows, and integration points with your existing systems.
1-2 weeks
Scoping
100%
Requirement Sign-off
02
Smart Contract Development
Our engineers write, test, and optimize Solidity/Vyper contracts for your payment processor, loyalty tokens, and settlement layer. We implement gas-efficient patterns, OpenZeppelin libraries, and comprehensive unit/integration tests from day one.
OpenZeppelin
Security Base
Hardhat/Foundry
Testing Suite
03
Hardware & Frontend Integration
We build the merchant-facing terminal interface (React/Next.js) and integrate with POS hardware (card readers, printers) via secure APIs. The system connects to your chosen EVM chain (Polygon, Arbitrum, Base) for real-time transaction confirmation.
< 3 sec
Tx Confirmation
PWA/React Native
Platform Support
04
Security Audit & Penetration Testing
Every line of code undergoes rigorous review. We conduct internal audits and facilitate third-party audits with firms like CertiK or Quantstamp before mainnet deployment. This includes testing for front-running, reentrancy, and oracle manipulation.
100%
Audit Coverage
CertiK
Audit Partner
05
Deployment & Mainnet Launch
We manage the deployment to your production EVM network, configure multi-sig wallets for treasury management, and set up monitoring with Chainscore's analytics dashboard. Includes comprehensive documentation and handover.
1 day
Deployment Time
24/7
Launch Support
06
Maintenance & Scaling
Post-launch, we provide ongoing support, performance monitoring, and upgrade paths. Our team handles bug fixes, smart contract upgrades via proxy patterns, and scaling optimizations as your transaction volume grows.
99.9%
Uptime SLA
< 4 hrs
Response Time
security-compliance
CORE SERVICE
Custom Smart Contract Development
Secure, production-ready smart contracts built to your exact specifications.
We architect, develop, and deploy custom smart contracts that form the secure foundation of your Web3 product. Our development process is built for enterprise-grade security and mainnet readiness.
- From Specification to Deployment: We handle the full lifecycle—requirements, architecture,
Solidity/Rustdevelopment, testing, and mainnet deployment. - Security-First Development: Every contract undergoes internal audits and follows
OpenZeppelinstandards before we recommend third-party audits. - Protocol Integration: Seamlessly integrate with major DeFi protocols (
Uniswap V3,AAVE), oracles (Chainlink), and cross-chain bridges.
Deliver a secure, auditable, and gas-optimized smart contract system in as little as 4-6 weeks.
EVM-Compatible POS Terminal Development
Frequently Asked Questions
Get clear answers on timelines, security, and process for building your blockchain payment solution.
A standard deployment for a custom EVM-compatible POS terminal takes 4-8 weeks, from initial scoping to production-ready launch. This includes smart contract development, integration with your existing systems, and security audits. The timeline varies based on features like multi-chain support, custom token handling, and hardware integration requirements.
ENQUIRY
Get In Touch
today.
Our experts will offer a free quote and a 30min call to discuss your project.
NDA Protected
Confidentiality24h Response
Time to ValueDirectly to Engineering Team
No Sales Fluff10+
Protocols Shipped
$20M+
TVL Overall