We architect, develop, and audit custom Solidity and Rust smart contracts for DeFi, NFTs, and enterprise applications. Our process delivers audit-ready code with zero critical vulnerabilities in production, backed by formal verification and gas optimization.
LABS
Services
Smart Invoice and Approval Workflow Creation
We design and deploy custom on-chain systems for invoice generation, multi-signature managerial approvals, and automatic crypto payment execution, eliminating manual errors and delays.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 experts to power your protocol.
- Security-First Development: Built on
OpenZeppelinstandards with comprehensive unit and integration testing. - Gas Optimization: Contracts engineered for up to 40% lower execution costs.
- Full Lifecycle Support: From architecture and development to deployment, monitoring, and upgrade management via transparent proxies.
- Multi-Chain Ready: Deployable on EVM chains (
Ethereum,Polygon,Arbitrum) andSolana.
We deliver production-grade smart contracts in 2-4 weeks, enabling faster time-to-market with enterprise-grade security.
key-features-cards
ARCHITECTURE
Core Components of Our On-Chain Workflow Systems
We build modular, auditable systems that automate financial operations on-chain. Each component is designed for enterprise-grade security, compliance, and seamless integration with your existing stack.
01
Custom Smart Contract Logic
Gas-optimized Solidity contracts for multi-signature approvals, payment routing, and automated escrow. Built on OpenZeppelin standards with formal verification options.
OpenZeppelin
Security Standard
Formal Verification
Available
02
Programmable Approval Workflows
Define complex, conditional approval chains (e.g., department head → CFO) with configurable thresholds and time locks. Enforce policy directly on-chain.
Unlimited
Approval Layers
Conditional Logic
Supported
03
Real-Time On-Chain Monitoring
Automated event listeners and alerting for invoice status changes, payment confirmations, and approval actions. Integrates with Slack, PagerDuty, and custom webhooks.
< 2 sec
Alert Latency
Custom Webhooks
Supported
04
Secure Multi-Party Escrow & Settlement
Non-custodial escrow smart contracts that release funds only upon predefined, verifiable conditions. Supports stablecoins and native tokens across EVM chains.
Non-Custodial
Model
Multi-Asset
Support
05
Immutable Audit Trail & Reporting
Every action—creation, approval, payment—is permanently recorded on-chain. Generate compliance-ready reports with cryptographic proof of all transactions.
Immutable
Record
Compliance-Ready
Exports
06
API-First Integration Layer
REST & GraphQL APIs to connect your existing ERP, accounting, or treasury management systems (NetSuite, QuickBooks) directly to on-chain workflows.
REST & GraphQL
APIs
< 1 day
POC Setup
benefits
DELIVERING TANGIBLE VALUE
Business Outcomes: From Efficiency to Control
Our Smart Invoice and Approval Workflow service is engineered to deliver measurable operational improvements. We focus on concrete outcomes that enhance your financial processes, reduce risk, and provide unparalleled control.
01
Accelerated Payment Cycles
Automated, on-chain workflows reduce invoice processing from days to minutes. Smart contracts enforce payment terms, eliminating manual follow-ups and accelerating cash flow.
90%
Faster Processing
24/7
Automation
02
Eliminated Reconciliation Errors
A single source of truth on the blockchain removes manual data entry and mismatched records. Every transaction is immutably logged, ensuring perfect audit trails.
100%
Data Integrity
0
Manual Errors
03
Granular Financial Control
Define multi-signature approval policies, spending limits, and role-based permissions directly in code. Gain real-time visibility into all financial commitments and outflows.
Custom
Approval Policies
Real-time
Visibility
04
Reduced Operational Costs
Cut overhead by automating manual accounting tasks and intermediary fees. Smart contracts execute payments precisely, reducing administrative burden and transaction costs.
Significant
Cost Reduction
Automated
Compliance
05
Enhanced Security & Auditability
Leverage blockchain's inherent security. Every approval and payment is cryptographically signed and permanently recorded, simplifying internal and regulatory audits.
Immutable
Audit Trail
Bank-grade
Security
06
Seamless Web3 Integration
Native compatibility with DeFi protocols for treasury management, stablecoins for settlement, and on-chain analytics for real-time financial reporting.
Native
DeFi Access
Real-time
Reporting
Choose the right engagement model for your project
Phased Implementation for Rapid Time-to-Value
Our structured delivery models ensure you get a secure, production-ready smart invoice and approval workflow system without the overhead of a full custom build.
| Capability | Starter | Professional | Enterprise |
|---|---|---|---|
Custom Workflow Design | |||
Smart Contract Development & Audit | |||
Multi-Chain Deployment (EVM) | 1 Chain | Up to 3 Chains | Unlimited |
Integration Support (ERP/CRM) | Basic API | Custom Connectors | White-Glove Integration |
Admin Dashboard & UI | Standard Templates | Custom Branded UI | Fully Custom Portal |
Ongoing Maintenance & Updates | Community Support | 12-Month SLA | Dedicated Engineer |
Security Incident Response | 48h | < 4h | |
Implementation Timeline | 4-6 Weeks | 6-10 Weeks | Custom |
Typical Project Scope | $15K - $30K | $30K - $75K | $75K+ |
Best For | MVP / Early-Stage Startup | Scaling Product / Series A | Enterprise / High-Volume Platform |
how-we-deliver
PROVEN PROCESS
Our Delivery Methodology: Secure, Iterative, Integrated
We deliver production-ready smart invoice and approval workflows through a disciplined, three-pillar approach designed for enterprise-grade security and rapid iteration.
01
Security-First Architecture
Every workflow is built on audited smart contract templates (OpenZeppelin) with role-based access control, automated vulnerability scanning, and formal verification for critical logic. We ensure compliance with financial-grade security standards from day one.
100%
Audited Code
Zero
Critical Vulnerabilities
02
Agile, Milestone-Driven Development
We work in 2-week sprints with transparent deliverables. You receive a functional prototype after the first sprint, enabling continuous feedback and ensuring the final product aligns perfectly with your operational needs.
< 2 weeks
First Prototype
Bi-weekly
Client Reviews
03
End-to-End Integration
We don't just deliver smart contracts. We provide seamless integration with your existing ERP, accounting software (QuickBooks, NetSuite), and payment rails, complete with a custom admin dashboard for real-time monitoring and management.
Pre-built
API Connectors
Real-time
Dashboard
04
Continuous Support & Upgrades
Your workflow stays current with protocol upgrades and new standards. We offer ongoing maintenance, performance monitoring, and feature enhancements based on evolving business and regulatory requirements.
99.9%
Uptime SLA
< 4 hrs
Support Response
Smart Invoice & Approval Workflow Creation
Build vs. Buy: Custom On-Chain vs. Off-Chain Tools
A detailed comparison of the total cost, risk, and time commitment for developing and maintaining a custom invoice and approval system in-house versus partnering with Chainscore Labs.
| Factor | Build In-House | Partner with Chainscore |
|---|---|---|
Time to Market | 6-12 months | 4-8 weeks |
Initial Development Cost | $150K - $400K+ | $50K - $150K |
Security Audit & Risk | High (unaudited, custom code) | Low (pre-audited patterns, formal verification) |
Team Required | 3-5 Senior Blockchain Devs | Your Product Lead + Our Team |
Ongoing Maintenance | Full-time DevOps & Security Engineer | Optional SLA with 24/7 Monitoring |
Protocol Upgrades | Your team manages forks & migrations | We handle EIP/network upgrades |
Feature Flexibility | Full control, but slow to iterate | Rapid prototyping & agile delivery |
Total Cost of Ownership (Year 1) | $300K - $700K+ | $75K - $200K |
Smart Invoice & Workflow
Frequently Asked Questions
Common questions from CTOs and product leads about our custom smart invoice and approval workflow development service.
Standard deployments with 2-3 approval steps and basic payment options take 2-3 weeks from kickoff to mainnet launch. Complex workflows with multi-signature governance, automated compliance checks, or integration with existing ERP/CRM systems typically take 4-6 weeks. We provide a detailed sprint-by-sprint timeline in our initial proposal.
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