We architect, develop, and audit custom Solidity/Rust smart contracts that form the secure backbone of your application. Our focus is on security-first development, gas optimization, and upgradeability patterns to protect assets and ensure long-term viability.
LABS
Services
Enterprise B2B Payment Card System
Chainscore builds dedicated, on-chain payment card networks for enterprise B2B transactions. We integrate automated approval workflows, invoice reconciliation, and ERP systems to streamline your financial operations.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
- Custom Logic: Build DeFi primitives, NFT collections, DAO governance, or bespoke business logic.
- Security Audits: Internal review against common vulnerabilities before deployment; preparation for third-party audits.
- Gas Efficiency: Optimized code to minimize transaction costs for your users.
- Upgradeable Design: Implement
Proxypatterns orDiamond Standard(EIP-2535) for seamless future upgrades.
Deploy with confidence. We deliver contracts that are battle-tested, well-documented, and ready for mainnet.
key-features-cards
ENTERPRISE-GRADE INFRASTRUCTURE
Core System Capabilities
Our modular B2B payment card system is built on battle-tested blockchain primitives, delivering the security, scalability, and compliance required for institutional adoption.
01
Multi-Chain Card Issuance
Deploy and manage branded payment cards across EVM-compatible chains (Ethereum, Polygon, Arbitrum) with a single API. Supports ERC-20, ERC-1155, and custom token standards for flexible reward and loyalty programs.
5+
Supported Chains
< 2 weeks
Integration Time
02
Real-Time Settlement Engine
Proprietary off-chain settlement layer with on-chain finality, enabling sub-second transaction confirmation and eliminating traditional 2-3 day ACH delays. Full transaction history is immutably recorded.
< 1 sec
Tx Confirmation
99.9%
Uptime SLA
03
Compliance & Fraud Module
Integrated KYC/AML screening via certified providers (Sumsub, Onfido) and real-time fraud detection with customizable rule sets. All processes are audit-ready for financial regulators.
0.01%
Fraud Rate
SOC 2
Compliance
04
Programmable Treasury Management
Automate fund flows, multi-sig approvals, and yield generation on idle capital. Integrates with DeFi protocols (Aave, Compound) and custodians (Fireblocks, Copper) for secure asset management.
24/7
Automation
$50M+
Assets Secured
06
Custom Reward & Incentive Engine
Design and deploy complex token-based reward programs, cashback schemes, and partner loyalty integrations. Supports dynamic NFT badges and milestone-based airdrops.
Unlimited
Rule Sets
ERC-1155
NFT Standard
benefits
TANGIBLE RESULTS
Business Outcomes You Can Measure
Our enterprise-grade B2B payment card system delivers quantifiable improvements to your treasury operations, compliance posture, and developer velocity.
01
Accelerated Time-to-Market
Deploy a fully functional, white-labeled B2B payment card program in under 6 weeks, not months. We provide pre-integrated modules for KYC, card issuance, and treasury management.
< 6 weeks
Deployment Time
Pre-built
Compliance Modules
02
Reduced Operational Overhead
Automate reconciliation, multi-signature approvals, and real-time expense tracking. Our system integrates with your existing ERP and accounting software, cutting manual processing by over 70%.
> 70%
Manual Process Reduction
Real-time
Reconciliation
04
Improved Treasury Efficiency
Gain real-time visibility into corporate spend across all cards. Automate funding via on-chain stablecoin pools or traditional rails, and earn yield on idle treasury funds.
Real-time
Spend Visibility
Automated
Treasury Funding
06
Predictable, Transparent Costs
Move away from opaque interchange fees and per-transaction surprises. Our model uses predictable smart contract gas fees and clear SaaS pricing, providing full cost visibility.
Predictable
Pricing Model
On-chain
Fee Transparency
Structured Delivery for Enterprise-Grade Payment Systems
Phased Development Approach
Our modular, milestone-driven framework ensures predictable delivery, controlled risk, and clear ROI at every stage of your B2B payment card system development.
| Phase & Deliverables | Starter (MVP) | Professional (Full Suite) | Enterprise (Managed Platform) |
|---|---|---|---|
Core Smart Contract Suite | |||
Multi-Chain Deployment (EVM) | 1 Network | Up to 3 Networks | Unlimited Networks |
On-Chain Compliance Module | Basic KYC | Advanced KYC + AML | Custom Rule Engine |
Card Issuance & Management Portal | Admin Dashboard | White-Label Admin + Partner Portal | Full White-Label with API |
Real-Time Settlement Engine | |||
Fraud Detection & Risk Analytics | Basic Monitoring | Advanced Rules + Alerts | AI-Powered System |
Integration Support | Documentation | Technical Implementation | Dedicated Integration Engineer |
Smart Contract Audit Coverage | Automated + Peer Review | Full Manual Audit Report | Audit + Formal Verification |
Ongoing Support & SLA | Email Support | 24/7 Monitoring & 12h Response | 99.9% Uptime SLA & 4h Response |
Estimated Timeline | 6-8 Weeks | 12-16 Weeks | 16-24 Weeks |
Typical Investment | $50K - $100K | $150K - $300K | Custom Quote |
how-we-deliver
PROVEN FRAMEWORK
Our Delivery Methodology
A structured, outcome-driven approach to delivering enterprise-grade payment card systems, ensuring security, compliance, and rapid time-to-market.
01
Strategic Discovery & Architecture
We begin with a deep-dive workshop to map your business logic, compliance requirements, and user flows. The output is a detailed technical specification and a secure, scalable architecture blueprint for your on-chain payment system.
2-3 days
Workshop
1 week
Architecture Plan
02
Secure Smart Contract Development
Our team builds the core payment logic using battle-tested Solidity (0.8+) and OpenZeppelin libraries. Every contract is developed with gas optimization, upgradability patterns, and comprehensive unit/integration testing from day one.
100%
Test Coverage
OpenZeppelin
Security Base
03
Compliance & Integration Layer
We implement the critical off-chain components: KYC/AML provider integration, fiat on/off-ramp connectors, and secure admin dashboards. This bridges traditional finance with your blockchain core, ensuring regulatory readiness.
Pre-integrated
KYC Providers
PCI DSS
Guidelines
04
Rigorous Security Audit
Before any deployment, the entire system undergoes a multi-layered security review. This includes automated analysis, manual code review by our senior engineers, and a formal audit by a leading third-party security firm.
2+ Audits
Per Project
Critical Issues
Zero Tolerance
05
Staged Deployment & Go-Live
We deploy to testnet for final validation with real transaction flows, followed by a phased mainnet launch. We provide full operational support during the launch window, including monitoring dashboards and incident response.
< 2 days
Mainnet Launch
24/7
Launch Support
06
Ongoing Support & Evolution
Your payment system is backed by SLAs for uptime and response times. We offer maintenance packages for upgrades, new feature development, and scaling support as your transaction volume grows.
99.9%
Uptime SLA
< 1 hour
Critical Response
security
CORE INFRASTRUCTURE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
We architect and deploy high-assurance smart contracts that form the foundational logic for your Web3 product. Our development lifecycle integrates formal verification and comprehensive audit trails to mitigate risk before deployment.
- Custom Logic:
Solidity/Rustdevelopment for DeFi protocols, NFT marketplaces, and DAOs. - Security-First: Built with
OpenZeppelinstandards, automated testing, and third-party audit preparation. - Gas Optimization: Code reviewed for >30% gas efficiency on average, reducing user transaction costs.
- Full Ownership: You receive 100% of the source code and IP rights upon delivery.
Enterprise Payment Cards
Frequently Asked Questions
Get answers to common questions about building a secure, compliant, and scalable B2B payment card system on blockchain.
A minimum viable product (MVP) can be deployed in 6-8 weeks. This includes core features like card issuance, transaction processing, and a basic admin dashboard. A full-featured enterprise system with advanced compliance tools, multi-currency support, and custom integrations typically takes 3-4 months. We follow an agile methodology with 2-week sprints, providing working demos at each stage.
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