We architect and deploy custom smart contracts that form the backbone of your Web3 application. Our development process is built on security-first principles and battle-tested patterns to ensure reliability from day one.
LABS
Services
Smart Invoice & Billing System
A white-label, on-chain invoicing and billing engine for NeoBanks. Automate payment tracking, recurring subscriptions, and accounting integration via secure smart contracts.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built to your exact specifications.
We deliver audited, gas-optimized contracts that execute exactly as intended, protecting your users and your protocol's assets.
- Full-Stack Development: From
ERC-20/ERC-721tokens to complex DeFi logic, cross-chain bridges, and DAO governance systems. - Security & Audits: Built with
OpenZeppelinlibraries and subjected to rigorous internal review before third-party audit. - Gas Optimization: Every line of
Soliditycode is optimized for efficiency, reducing user transaction costs. - End-to-End Ownership: We provide complete source code, deployment scripts, and documentation upon delivery.
key-features-cards
AUTOMATED, TRANSPARENT, SECURE
Core Features of Our Smart Billing System
Our on-chain billing infrastructure automates revenue collection, ensures transparent settlement, and eliminates costly payment disputes for Web3 businesses.
01
Programmable Recurring Payments
Deploy smart contracts for automated, tamper-proof subscription billing. Supports fixed, tiered, and usage-based models with automatic enforcement and renewal.
99.9%
Execution Uptime
< 2 sec
Payment Finality
02
Multi-Chain & Multi-Currency Support
Collect payments across Ethereum, Polygon, Arbitrum, and Base. Accept stablecoins (USDC, DAI) and native tokens with real-time FX conversion.
10+
Supported Chains
50+
Token Standards
03
Real-Time Revenue Analytics
Dashboard with granular insights into cash flow, customer LTV, and collection rates. Export data via API for integration with existing financial systems.
Real-time
Data Sync
Pre-built
Stripe/QuickBooks Connectors
04
Automated Compliance & Tax Reporting
Built-in tools for transaction labeling, VAT/GST calculation, and generation of audit-ready reports for regulatory compliance in key jurisdictions.
Auto-generated
Tax Forms
SOC 2
Compliance Framework
05
Enterprise-Grade Security
Smart contracts audited by leading firms like CertiK. Role-based access controls, multi-sig treasury management, and comprehensive event logging.
CertiK
Security Audit
Zero
Critical Vulnerabilities
06
Seamless Developer Integration
Comprehensive API, SDKs for React/Node.js, and pre-built UI components. Integrate a full billing suite into your dApp in under 2 weeks.
< 2 weeks
Average Integration
24/7
Developer Support
benefits
MEASURABLE RESULTS
Business Outcomes for Your NeoBank
Our Smart Invoice & Billing System delivers concrete improvements to your operational efficiency, security, and customer experience. Here’s what you can expect.
01
Automated, Trustless Settlements
Eliminate manual reconciliation and payment delays with self-executing smart contracts. Invoices are settled automatically upon fulfillment, reducing operational overhead by up to 70% and accelerating cash flow.
70%
Ops Reduction
Instant
Settlement
02
Enterprise-Grade Security & Compliance
Built with OpenZeppelin standards and subject to third-party audits. Our system ensures immutable audit trails, KYC/AML integration hooks, and data privacy by design, meeting rigorous financial regulatory requirements.
100%
Audit Trail
SOC 2
Compliance Ready
03
Seamless Multi-Chain & Fiat Integration
Deploy on Ethereum, Polygon, or Solana with unified APIs. Our system supports stablecoin payments and traditional bank rails via licensed partners, providing a frictionless experience for all your customers.
3+
Chains Supported
Unified API
Integration
04
Real-Time Treasury & Analytics
Gain a single pane of glass for all invoice and payment data. Monitor cash flow in real-time, generate automated reports, and leverage on-chain analytics for superior financial forecasting and decision-making.
Real-Time
Cash Flow View
Automated
Reporting
05
Rapid Deployment & Scalability
Go live with a custom-branded invoicing portal in weeks, not months. Our modular architecture scales effortlessly with your transaction volume, ensuring 99.9% uptime without infrastructure management.
< 4 weeks
Time-to-Market
99.9%
Uptime SLA
06
Enhanced Customer Experience
Offer your clients transparent, trackable invoices with flexible payment options. Reduce support tickets by 60% with self-service portals and automated payment reminders, boosting client satisfaction and retention.
60%
Support Reduction
Trackable
Every Payment
Structured Delivery for Predictable Outcomes
Phased Development & Deliverables
Our phased approach ensures a clear roadmap, transparent milestones, and predictable costs for your custom smart invoice and billing system.
| Phase & Deliverables | Starter (4-6 Weeks) | Professional (8-12 Weeks) | Enterprise (12-16+ Weeks) |
|---|---|---|---|
Core Smart Contract Suite | |||
On-Chain Invoice Lifecycle | Create, Pay, Settle | Create, Pay, Settle, Dispute | Create, Pay, Settle, Dispute, Recurring |
Multi-Chain Deployment | 1 Network | Up to 3 Networks | Unlimited Networks |
Admin Dashboard MVP | Basic Analytics | Advanced Analytics & Reporting | Custom White-Label Dashboard |
External Audit & Security | 1 Major Audit Report | 2 Audit Reports + Pen Test | Continuous Audit Program |
API & Integration Support | REST API | REST & WebSocket API | Full SDK + Dedicated Integration Engineer |
Compliance Features | Basic KYC/AML Checks | Advanced Compliance Module | Custom Jurisdictional Rules Engine |
Smart Contract Upgradability | Not Included | Basic Proxy Pattern | Full Diamond Standard (EIP-2535) |
Ongoing Support & SLA | 30 Days Email | 6 Months Priority (24h) | 12+ Months Dedicated (4h) |
Estimated Investment | $25K - $50K | $75K - $150K | Custom Quote |
how-we-deliver
PREDICTABLE & TRANSPARENT
Our Development Process
We deliver enterprise-grade smart invoice systems through a structured, milestone-driven approach that ensures clarity, security, and rapid time-to-market.
01
Discovery & Architecture
We conduct a technical deep-dive to define your tokenomics, payment flows, and integration points. Deliverables include a detailed technical specification and architecture diagram for your on-chain billing logic.
1-2 weeks
Specification Phase
100%
Requirement Clarity
02
Smart Contract Development
Our engineers build your core invoice, escrow, and payment settlement contracts in Solidity 0.8+ using OpenZeppelin libraries. Code includes comprehensive unit tests and gas optimization from day one.
3-4 weeks
Core Build
>95%
Test Coverage
03
Security & Audit
Every contract undergoes internal review followed by a formal audit from a partner firm like CertiK or Quantstamp. We resolve all critical/high issues before deployment.
2-3 weeks
Audit Cycle
0
Critical Issues at Launch
04
Frontend & API Integration
We develop the admin dashboard and user-facing portal using React/Next.js, and provide a well-documented REST/GraphQL API for seamless integration with your existing systems.
2-3 weeks
Integration Build
Full SDK
Included
05
Testnet Deployment & QA
Full system deployment on Sepolia or Mumbai testnet for rigorous integration testing, user acceptance testing (UAT), and performance validation under simulated load.
1-2 weeks
Testing Window
>99.9%
Testnet Uptime
06
Mainnet Launch & Support
We manage the production deployment on Ethereum, Polygon, or your chosen L2. Includes monitoring setup, incident response playbooks, and 30 days of post-launch support.
1 week
Go-Live
24/7
Launch Support
security
RELIABLE FOUNDATION
Blockchain Infrastructure for FinTechs
Enterprise-grade node infrastructure with 99.9% uptime SLA and multi-chain support.
We provide managed infrastructure so your team can focus on product, not ops. Deploy production-ready nodes in minutes, not weeks.
- Multi-Chain Coverage: Full nodes for
Ethereum,Solana,Polygon,Arbitrum, andBase. - Guaranteed Performance: 99.9% uptime SLA with sub-second RPC latency.
- Zero DevOps Overhead: We handle upgrades, monitoring, and disaster recovery.
Scale confidently with infrastructure trusted by Series A+ startups and institutional clients. Get predictable costs and eliminate node-related development delays.
Smart Invoice & Billing
Frequently Asked Questions
Get clear answers on our Web3 billing system development process, security, and support.
A Web3 smart invoice system automates and secures billing, invoicing, and subscription management on the blockchain. It replaces traditional payment processors with self-executing smart contracts that handle recurring payments, one-time invoices, and revenue splits. You need one to reduce operational overhead by 70%, eliminate payment disputes, enable instant global settlements in crypto, and create programmable revenue models like usage-based billing.
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