We architect and deploy custom smart contracts for DeFi, NFTs, DAOs, and enterprise applications. Our contracts are built on Solidity 0.8+ with OpenZeppelin standards and undergo rigorous security audits.
LABS
Services
API for Blockchain Invoice Services
A unified, developer-friendly REST/GraphQL API layer that abstracts blockchain complexity. Generate, manage, and track invoices on-chain without writing or interacting with smart contracts directly.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built to your exact specifications.
- Full Lifecycle Support: From initial design and development to deployment, monitoring, and maintenance.
- Security-First: Every contract includes unit tests, integration tests, and formal verification where applicable.
- Gas Optimization: We write efficient code to minimize transaction costs and maximize user savings.
Deploy a secure, audited smart contract suite in as little as 2-4 weeks, reducing your time-to-market and technical risk.
key-features-cards
ENTERPRISE-GRADE INFRASTRUCTURE
Core API Capabilities
Our specialized APIs provide the foundational building blocks for secure, compliant, and scalable blockchain invoice solutions. Each capability is engineered for reliability and designed to accelerate your product development.
01
Invoice Lifecycle Management
End-to-end programmatic control for creating, issuing, tracking, and settling blockchain-based invoices. Supports dynamic terms, partial payments, and automated reconciliation with on-chain events.
< 100ms
Invoice Creation
ERC-20, 721, 1155
Payment Token Support
02
Real-Time Payment Verification
Instant, webhook-driven notifications for invoice status changes (paid, overdue, disputed). Direct integration with on-chain explorers and indexers for sub-second confirmation.
99.9%
Uptime SLA
< 1 sec
Event Latency
03
Regulatory & Compliance Hooks
Built-in modules for KYC/AML checks, transaction monitoring, and audit trail generation. Configurable rulesets for different jurisdictions to ensure regulatory adherence.
SOC 2 Type II
Compliance Framework
Automated
Audit Logs
04
Multi-Chain Settlement Engine
Deploy and manage invoice contracts across Ethereum, Polygon, Arbitrum, and other EVM-compatible networks. Unified API abstracts away chain-specific complexities.
10+
Supported Networks
Single Endpoint
Cross-Chain Interface
05
Gas Optimization & Relaying
Intelligent gas estimation and optional meta-transaction relaying to simplify user payments. Reduce failed transactions and improve customer payment success rates.
Up to 40%
Gas Savings
Paymaster Support
Sponsored Tx
06
Analytics & Reporting Dashboard
Comprehensive API endpoints for financial reporting, cash flow analytics, and customer payment behavior. Export-ready data for accounting and business intelligence systems.
Real-time
Revenue Tracking
CSV, JSON
Data Export
benefits
ENTERPRISE-GRADE INFRASTRUCTURE
Why Choose Our Blockchain Invoice API
Built for FinTechs and Web3 companies that require reliable, compliant, and developer-first financial infrastructure. We deliver the technical foundation so you can focus on your product.
01
Real-Time On-Chain Settlement
Process and settle invoices directly on-chain with sub-2 second finality. Eliminate traditional banking delays and reduce settlement cycles from days to seconds.
< 2 sec
Settlement Time
24/7
Operation
02
Multi-Chain & Multi-Currency Support
Issue and manage invoices across Ethereum, Polygon, Arbitrum, and Base. Accept payments in stablecoins (USDC, USDT) and native tokens with automatic conversion.
4+
Networks
10+
Currencies
03
Audited Security & Compliance
Smart contracts audited by leading security firms. Built with OpenZeppelin standards and SOC 2 Type II compliant infrastructure for enterprise data handling.
100%
Audit Coverage
SOC 2
Compliance
05
Automated Reconciliation & Reporting
Automatically match on-chain payments to invoices with 100% accuracy. Generate real-time financial reports and export data to your existing accounting stack.
100%
Match Accuracy
Real-time
Reporting
06
Scalable Infrastructure
Handle from 100 to 1M+ invoices monthly with consistent sub-100ms API latency. Enterprise-grade architecture with automatic scaling and 99.9% uptime SLA.
1M+
Monthly Scale
< 100ms
P95 Latency
For Blockchain Invoice & Payment Solutions
Build vs. Buy: The Infrastructure Decision
A detailed comparison of the costs, risks, and time investment required to build a custom blockchain invoice API in-house versus leveraging Chainscore's production-ready platform.
| Factor | Build In-House | Chainscore API |
|---|---|---|
Time to Market (MVP) | 6-12 months | 2-4 weeks |
Initial Development Cost | $200K - $500K+ | $0 (Pay-as-you-go) |
Smart Contract Security | High Risk (Requires audits) | Enterprise-Grade (Pre-audited) |
Ongoing Infrastructure & DevOps | Your team, 24/7 | Fully Managed by Chainscore |
Multi-Chain Support (EVM) | Custom integration per chain | Native (Ethereum, Polygon, Base, Arbitrum) |
Compliance & Tax Reporting | Custom development required | Built-in (VASP-ready, AML checks) |
Uptime & Reliability SLA | Your responsibility | 99.9% Guaranteed |
Total Cost of Ownership (Year 1) | $300K - $750K+ | Starts at $50K |
Scalability & Peak Load Handling | Complex scaling engineering | Automatic, Global CDN |
how-we-deliver
PREDICTABLE, TRANSPARENT, AND FAST
Our Delivery Process: From Integration to Live
We provide a structured, milestone-driven approach to ensure your blockchain invoice API is deployed on time, within scope, and with enterprise-grade security. This is our proven framework for delivering production-ready infrastructure.
01
1. Discovery & Architecture
We begin with a technical deep-dive to map your invoice workflows, token standards (ERC-20, ERC-1155), and settlement requirements. We deliver a detailed architecture document and integration plan.
2-3 days
Workshop Duration
1 document
Technical Spec
02
2. Sandbox Integration
Get immediate access to our staging environment with testnet tokens. Our team provides dedicated support for your developers to integrate our APIs and SDKs, ensuring a smooth initial connection.
< 24 hours
Access Granted
Full SDK
Developer Kit
03
3. Security Audit & Pen-Testing
Before any mainnet deployment, our smart contracts and API endpoints undergo rigorous internal security reviews and automated vulnerability scanning, following OpenZeppelin best practices.
Zero Critical
Vulnerability Target
Comprehensive
Security Report
04
4. Mainnet Deployment & Go-Live
We manage the secure deployment of your configured invoice service to mainnet (Ethereum, Polygon, Base). Includes final configuration, monitoring setup, and a formal handover to your operations team.
99.9% SLA
Uptime from Day 1
Live Support
Launch Coverage
Blockchain Invoice API
Frequently Asked Questions
Get clear answers about our API for automated, on-chain invoicing and payments.
Most teams complete integration and go live in under 2 weeks. We provide a production-ready API with comprehensive documentation, SDKs for popular languages, and a dedicated technical onboarding specialist to guide you through the process.
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