We architect and deploy custom smart contracts that form the secure, immutable backbone of your Web3 product. Our development process is built for production from day one, ensuring reliability and audit-readiness.
LABS
Services
Automated Invoicing and Payment Smart Contracts
We develop end-to-end smart contract systems that automate B2B invoicing, verify service delivery via oracles, execute payments, and manage reconciliation, reducing manual work by 80%.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, gas-optimized smart contracts built by experts for production-ready applications.
- Full-Stack Expertise: From
ERC-20tokens andERC-721NFTs to complex DeFi protocols and DAO governance systems. - Security-First Development: Rigorous testing with Foundry/Hardhat, adherence to OpenZeppelin standards, and preparation for third-party audits.
- Gas Optimization: Every line of
Soliditycode is analyzed to minimize transaction costs and maximize user savings. - End-to-End Delivery: We handle deployment, verification on Etherscan, and provide comprehensive documentation.
Move from concept to a live, mainnet-ready contract in as little as 2-4 weeks with our streamlined development sprints.
key-features-cards
ENGINEERED FOR SCALE
Core System Capabilities
Our automated invoicing and payment smart contracts are built on a foundation of enterprise-grade security, interoperability, and developer experience. We deliver production-ready systems, not just code.
01
Multi-Chain Payment Rails
Deploy on Ethereum, Polygon, Arbitrum, or Base with a single codebase. Our architecture abstracts chain complexity, enabling seamless cross-chain settlements and future-proofing your payment infrastructure.
4+
Supported Chains
ERC-20/ERC-721
Token Standards
02
Gas-Optimized Execution
Contracts are engineered for minimal transaction costs using Solidity best practices, custom assembly, and state management patterns. Reduce operational overhead for you and your users.
30-50%
Lower Gas Costs
Solidity 0.8+
Language Version
03
Enterprise Security & Audits
Every contract undergoes rigorous testing and formal verification. We integrate OpenZeppelin libraries and provide audit-ready code, with optional third-party audits from firms like CertiK or Quantstamp.
100%
Test Coverage
OpenZeppelin
Security Base
04
Automated Compliance & Escrow
Programmable logic for KYC/AML checks, multi-sig approvals, and time-locked escrow releases. Enforce business rules on-chain while maintaining audit trails for regulatory requirements.
Multi-Sig
Approval Flows
On-Chain
Audit Trail
05
Real-Time Event Streaming
Integrate payment events directly into your backend with WebSocket feeds and webhook triggers for invoice creation, payment confirmation, and dispute resolution. No polling required.
< 1 sec
Event Latency
WebSocket
Primary Feed
06
Developer-First Tooling
Complete with deployment scripts, a local test suite, and comprehensive API documentation. Get a production-ready environment in days, not months, with clear integration points.
< 2 weeks
To Staging
Hardhat
Dev Framework
benefits
TANGIBLE RESULTS
Business Outcomes You Can Measure
Our automated invoicing and payment smart contracts deliver quantifiable improvements to your financial operations. Here's the impact you can expect.
01
Reduced Transaction Costs
Automate payment routing and settlement on-chain, eliminating intermediary fees and reducing per-transaction costs by up to 80% compared to traditional payment processors.
Up to 80%
Cost Reduction
Zero
Intermediary Fees
02
Faster Payment Cycles
Smart contracts execute payments instantly upon invoice fulfillment, accelerating your cash flow. Move from net-30 terms to real-time settlement.
Real-time
Settlement
100%
Automated
03
Enhanced Security & Compliance
Immutable audit trails for every invoice and payment. Built with OpenZeppelin standards and audited for vulnerabilities, ensuring regulatory-grade transaction records.
Immutable
Audit Trail
OpenZeppelin
Standards
04
Operational Efficiency
Eliminate manual reconciliation and data entry errors. Our contracts integrate with your existing ERP/accounting software via secure APIs, automating back-office workflows.
Zero
Manual Errors
API-First
Integration
Structured Roadmap for Automated Invoicing
Phased Development & Delivery
A transparent, milestone-driven approach to deliver your production-ready payment smart contracts, from initial audit to ongoing support.
| Phase & Deliverable | Starter | Professional | Enterprise |
|---|---|---|---|
Smart Contract Audit & Security Review | |||
Multi-Chain Deployment (EVM) | 1 Network | Up to 3 Networks | Unlimited |
Custom Invoice Logic & Workflow | Basic Templates | Custom Business Rules | White-Label Solution |
Integration Support (API, Frontend) | Documentation Only | Technical Guidance | Dedicated Engineer |
Post-Launch Monitoring & Alerts | 30 Days | 6 Months | 24/7 with SLA |
Incident Response Time | Best Effort | 12 Business Hours | < 4 Hours |
Smart Contract Upgrade Management | |||
Compliance Reporting Module | |||
Estimated Timeline | 3-4 Weeks | 6-8 Weeks | 8-12 Weeks |
Starting Price | $15,000 | $45,000 | Custom Quote |
how-we-deliver
PROVEN PROCESS
Our Development Methodology
A structured, security-first approach that delivers production-ready automated payment contracts in weeks, not months.
01
Discovery & Architecture
We map your business logic to on-chain workflows, designing gas-efficient contract architecture for ERC-20, ERC-777, or custom token standards. This phase defines clear deliverables and a fixed-scope plan.
1-2 weeks
Design Phase
Fixed Scope
No Scope Creep
02
Secure Smart Contract Development
Our engineers write, test, and optimize Solidity/Vyper contracts using OpenZeppelin libraries and established security patterns. Every line is crafted for audit-readiness and gas efficiency.
100%
Test Coverage
OpenZeppelin
Security Base
03
Comprehensive Testing & Simulation
We deploy to testnets and run automated suites (Hardhat/Foundry) covering unit, integration, and fork testing. We simulate mainnet conditions to validate payment flows and edge cases.
Multi-chain
Testnet Validation
Fork Testing
Mainnet Simulation
05
Deployment & Mainnet Launch
We handle the secure deployment and verification of contracts on your target chain (Ethereum, Polygon, Arbitrum, etc.), including multisig setup and initial configuration.
Verified Source
On Etherscan
Multisig
Admin Controls
06
Monitoring & Support
Post-launch, we provide monitoring dashboards for transaction success rates and contract health, with optional ongoing support and upgrade management.
24/7
Alerting
Performance Dashboards
Real-time Data
security-compliance
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 specialists for your protocol or dApp.
We architect and deploy custom smart contracts that form the secure, immutable backbone of your application. Our development process is built on audited security patterns and battle-tested standards like ERC-20, ERC-721, and ERC-1155.
Deploy a secure, audited MVP in as little as 2-4 weeks, not months.
Our full-service delivery includes:
- End-to-end development from architecture to mainnet deployment.
- Gas optimization to reduce user transaction costs by up to 40%.
- Comprehensive testing with 95%+ coverage using
HardhatorFoundry. - Formal verification and integration with top audit firms for final security sign-off.
We specialize in complex logic for:
- DeFi: Automated Market Makers (AMMs), lending/borrowing pools, yield aggregators.
- NFTs: Generative collections, dynamic metadata, staking mechanics.
- Enterprise: Custom tokenomics, multi-signature governance, and cross-chain bridges.
Automated Invoicing & Payments
Frequently Asked Questions
Get clear answers on how we deliver secure, production-ready payment automation for your business.
A standard deployment for a custom invoicing and payment smart contract suite takes 4-6 weeks from kickoff to mainnet launch. This includes requirements analysis, smart contract development, comprehensive testing, and deployment. Complex integrations with existing ERP or accounting systems may extend the timeline, which we scope and agree upon upfront.
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