We architect and deploy custom smart contracts for DeFi, NFTs, DAOs, and enterprise applications. Our development process ensures security-first design, gas optimization, and comprehensive audit readiness from day one.
LABS
Services
Wallet Point-of-Sale Integration
Seamlessly integrate wallet payments into your physical Point-of-Sale systems. We deliver QR code scanning, NFC tap-to-pay, and offline transaction capabilities to bridge Web3 and real-world commerce.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 experts.
Deliver a secure, scalable foundation for your on-chain product in as little as 2-4 weeks.
- Protocol Development:
ERC-20,ERC-721,ERC-1155, and custom standards. - Security & Audits: Built with OpenZeppelin libraries and prepared for third-party audits.
- Full Lifecycle: From initial spec and development to deployment, verification, and monitoring on Ethereum, Polygon, Arbitrum, and other EVM chains.
key-features-cards
ENTERPRISE-GRADE
Core Integration Capabilities
Our modular, battle-tested SDKs and APIs provide the foundational building blocks for secure, scalable, and compliant wallet-based transactions. We handle the complex infrastructure so you can focus on your product.
01
Multi-Chain Wallet SDK
A unified SDK supporting EVM (Ethereum, Polygon, Arbitrum), Solana, and Bitcoin. Enables seamless user onboarding, transaction signing, and balance checks across any chain with a single integration.
Client Value: Launch your product on multiple blockchains simultaneously, reaching a wider user base without managing separate codebases.
10+
Supported Chains
< 3 days
Integration Time
02
Secure Transaction Orchestration
End-to-end transaction flow management with built-in nonce handling, gas estimation, and fee optimization. Includes automatic fallback RPC providers and real-time status monitoring.
Client Value: Eliminate failed transactions and high gas costs. Ensure reliable, cost-effective payments for your customers every time.
99.9%
Success Rate
< 1 sec
Gas Estimation
03
Compliance & Fraud Prevention
Integrated AML/KYC checks, transaction screening, and risk scoring powered by industry-leading providers. Configurable rules engine for region-specific compliance.
Client Value: Deploy with confidence in regulated markets. Automatically screen transactions to mitigate fraud and meet financial compliance requirements.
150+
Jurisdictions
Real-time
Screening
04
Real-Time Settlement & Webhooks
Instant on-chain confirmation monitoring with guaranteed webhook delivery for payment success/failure. Includes idempotency keys and retry logic for mission-critical operations.
Client Value: Automate your backend reconciliation and inventory updates instantly upon payment confirmation, eliminating manual checks.
99.95%
Webhook SLA
< 2 sec
Confirmation Alert
05
Developer-First Dashboard & Analytics
A comprehensive admin portal for monitoring transaction volumes, user activity, and revenue analytics. Includes API key management, webhook logs, and debugging tools.
Client Value: Gain actionable insights into your payment flow and troubleshoot issues without needing engineering support.
50+
Data Metrics
24/7
Live Monitoring
06
Custom Smart Contract Integration
Seamlessly integrate custom ERC-20, ERC-721, or proprietary smart contract logic into your payment flow. Our experts handle the secure interaction layer.
Client Value: Accept payments in your project's native token or enable complex NFT-gated purchases without deep blockchain expertise.
Audited
Security Patterns
1 week
Typical Setup
benefits
MEASURABLE RESULTS
Business Outcomes for Merchants and Platforms
Our Wallet POS Integration delivers concrete, bottom-line improvements for your business. We focus on quantifiable outcomes that reduce costs, increase revenue, and enhance customer experience.
01
Reduce Payment Processing Costs
Eliminate traditional card network fees (2-4%) and chargeback risks. Accept direct crypto payments with our secure, non-custodial settlement layer, keeping more of your revenue.
2-4%
Fee Reduction
0%
Chargeback Risk
02
Expand to Global Markets Instantly
Onboard international customers without currency conversion hurdles or cross-border payment delays. Our integration supports multi-chain assets for seamless global commerce.
24/7
Settlement
0
FX Fees
03
Enhance Customer Loyalty & Data
Leverage on-chain transaction data for personalized loyalty programs and analytics. Issue tokenized rewards and gain insights without relying on third-party data brokers.
First-Party
Data Ownership
Programmable
Loyalty Rewards
04
Future-Proof Your Tech Stack
Integrate once with our modular API and SDK. We handle protocol upgrades, wallet compatibility, and new asset support, so your checkout experience stays current.
1
Unified API
Auto-Updated
Protocol Support
06
Achieve Sub-Second Checkout
Deliver a frictionless user experience with near-instant transaction confirmation. Our optimized gas management and multi-RPC fallback ensure reliability at peak times.
< 1 sec
UI Confirmation
99.9%
Uptime SLA
Strategic Decision Analysis
Build vs. Buy: Wallet POS Integration
A detailed comparison of the costs, risks, and timeframes associated with developing a custom wallet point-of-sale system in-house versus partnering with Chainscore Labs for a production-ready solution.
| Key Factor | Build In-House | Partner with Chainscore |
|---|---|---|
Time to Market | 6-12 months | 4-8 weeks |
Initial Development Cost | $150K - $400K+ | $25K - $75K |
Security & Audit Overhead | High (Unaudited Risk) | Low (Pre-Audited, Secure Codebase) |
Team Requirements | 3-5 Senior Blockchain Devs | Your Product Team + Our Experts |
Ongoing Maintenance | Full internal team required | Optional SLA with 24/7 monitoring |
Feature Breadth | Limited to initial scope | Modular: NFC, QR, Cross-Chain, Loyalty |
Compliance & Standards | Your responsibility to implement | Built-in (PCI DSS, GDPR-ready patterns) |
Integration Complexity | High (WalletConnect, RPCs, Gas) | Managed APIs & SDKs |
Total Cost of Ownership (Year 1) | $300K - $600K+ | $50K - $150K |
Guaranteed Uptime SLA | None (your infrastructure) | 99.9% with dedicated support |
how-we-deliver
PREDICTABLE, TRANSPARENT, AND FAST
Our 4-Phase Delivery Process
We de-risk your Wallet POS integration with a structured, milestone-driven approach that ensures clarity, security, and a fast path to production.
01
Phase 1: Discovery & Architecture
We conduct a technical deep-dive to define your exact requirements, select optimal protocols (e.g., WalletConnect v2, EIP-4337 for gas sponsorship), and design a secure, scalable architecture. This phase delivers a detailed technical specification and project roadmap.
1-2 weeks
Duration
Detailed Spec
Deliverable
02
Phase 2: Core Integration & Smart Contract Development
Our engineers build and test the core integration layer. This includes custom smart contracts for on-chain settlement, secure wallet session management, and gas abstraction logic, all developed in Solidity 0.8+ with OpenZeppelin standards.
2-3 weeks
Duration
Audit-Ready Code
Deliverable
03
Phase 3: Security Audit & Staging
All smart contracts and critical integration code undergo a rigorous internal security review. We deploy the complete solution to a staging environment for end-to-end testing, including simulated high-volume transaction loads and failure scenarios.
1-2 weeks
Duration
Security Report
Deliverable
04
Phase 4: Production Deployment & Handover
We manage the deployment to your mainnet environment, configure monitoring and alerting (e.g., for failed transactions), and provide comprehensive documentation and developer training for your team to own and operate the system.
< 1 week
Duration
Live on Mainnet
Deliverable
Technical & Commercial Details
Wallet POS Integration: Frequently Asked Questions
Get clear answers on timelines, costs, and technical specifics for integrating blockchain wallets into your point-of-sale systems.
A standard integration with a single payment method (e.g., direct crypto) takes 2-4 weeks from kickoff to production deployment. Complex projects supporting multiple chains, fiat on-ramps, or custom loyalty logic typically require 6-8 weeks. We provide a detailed sprint-by-sprint project plan during the discovery phase.
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