We deliver audit-ready code for ERC-20, ERC-721, and custom protocols, reducing your time-to-market from months to weeks. Our engineers specialize in Solidity 0.8+ and Rust, implementing battle-tested patterns from OpenZeppelin and Solmate.
LABS
Services
StarkNet Cairo Royalty Calculation Engine
We engineer high-performance, verifiable royalty calculation engines in Cairo for StarkNet, handling complex formulas with proof of correct execution for music and RWA tokenization.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3-native engineers.
- Security-First Process: Every contract undergoes internal review and formal verification before external audit.
- Gas Optimization: We target >30% gas reduction versus standard implementations.
- Full Ownership: You receive all source code, deployment scripts, and documentation.
Deploy with confidence. We build the foundational logic your dApp's security and scalability depend on.
key-features-cards
ENTERPRISE-GRADE ROYALTY INFRASTRUCTURE
Core Engine Capabilities
Our StarkNet Cairo engine delivers the precision, security, and scalability required for high-volume NFT marketplaces and DeFi protocols. Built for production from day one.
01
Real-Time Royalty Enforcement
On-chain logic that automatically calculates and distributes creator fees on every secondary sale, ensuring compliance with ERC-721/1155 standards. Eliminates manual reconciliation and revenue leakage.
< 1 sec
Calculation Time
100%
On-Chain Accuracy
02
Multi-Protocol Fee Architecture
Support for complex, configurable royalty models: fixed percentages, tiered rates, time-based decays, and custom logic for DAO-governed collections. Future-proof your marketplace.
10+
Fee Models
ERC-721/1155
Standards
03
Gas-Optimized Cairo Contracts
Contracts written in Cairo 1.0 with StarkNet's ZK-rollup efficiency, reducing L1 settlement costs by 90%+ compared to Ethereum mainnet. Includes OpenZeppelin security patterns.
> 90%
Gas Savings
Cairo 1.0
Language
04
Automated Payout Engine
Batch processing and automated disbursement of royalties to creators and rights holders in ETH or STRK. Configurable schedules and multi-signature security for treasury management.
Bulk
Payouts
ETH/STRK
Settlement
05
Immutable Audit Trail
Every calculation and distribution is recorded on-chain with immutable transaction hashes, providing a transparent, verifiable ledger for creators, marketplaces, and auditors.
100%
Transparency
On-Chain
Verification
benefits
TANGIBLE RESULTS
Business Outcomes for Your Platform
Our StarkNet Cairo Royalty Calculation Engine delivers measurable improvements to your platform's revenue, compliance, and developer velocity.
01
Automated, On-Chain Royalty Enforcement
We implement a custom Cairo smart contract engine that automatically calculates and distributes royalties for every secondary market transaction, ensuring creators are paid without manual intervention.
100%
On-Chain Accuracy
< 1 sec
Calculation Time
02
Reduced Integration & Maintenance Overhead
We deliver a fully audited, production-ready engine with a clear API. Your team avoids months of Cairo development and security review cycles, accelerating your core product roadmap.
8-12 weeks
Time Saved
0
Critical Audit Findings
03
Enhanced Platform Revenue & Creator Trust
By guaranteeing fair compensation, you attract top-tier creators and collections, increasing trading volume and platform fees. Transparent royalty logic builds trust with your community.
30-50%
Creator Retention Uplift
100%
Fee Compliance
04
Future-Proof Royalty Logic
Our engine is built with modular upgrade patterns, allowing you to adapt to new EIPs, marketplace standards, and custom royalty models (e.g., tiered, time-based) without contract redeployment.
Modular
Architecture
Zero-Downtime
Upgrades
From MVP to Enterprise Scale
StarkNet Royalty Engine: Phased Development Roadmap
A clear, phased implementation plan to integrate robust, on-chain royalty calculations into your NFT marketplace or protocol on StarkNet.
| Phase & Core Deliverables | Starter (MVP Launch) | Professional (Scale & Optimize) | Enterprise (Full Integration) |
|---|---|---|---|
Cairo 1.0 Royalty Core Engine | |||
EIP-2981 & Custom Rule Support | Basic EIP-2981 | EIP-2981 + Custom Rules | Full Custom Rule Engine |
Multi-Token Royalty Support (ERC-721/1155) | |||
On-Chain vs. Off-Chain Royalty Resolution | On-Chain Only | Hybrid (On/Off-Chain) | Configurable Hybrid System |
Royalty Fee Aggregation & Distribution | Manual Batch Payouts | Automated Scheduled Payouts | Real-time Streaming Payouts |
Integration Complexity | Simple Marketplace Hook | Advanced SDK & APIs | White-Glove Custom Integration |
Security Audit Scope | Core Engine Only | Core + Integration Points | Full System & Penetration Test |
Developer Support & SLA | Community Support | Business Hours Support | 24/7 Dedicated Engineer |
Deployment & Go-Live Support | Documentation | Guided Deployment | Managed Deployment & Launch |
Estimated Timeline | 3-4 Weeks | 6-8 Weeks | 10-12+ Weeks |
Starting Investment | $25K - $50K | $75K - $150K | Custom Quote |
how-we-deliver
END-TO-END DELIVERY
Our Development & Audit Process
A rigorous, multi-phase methodology designed to deliver a secure, high-performance StarkNet royalty engine with predictable timelines and zero surprises.
01
Requirement Analysis & Architecture
We translate your business logic into a scalable Cairo architecture, defining data models, fee structures, and integration points for your marketplace or NFT platform.
1-2 weeks
Design Phase
100%
Spec Alignment
02
Cairo Smart Contract Development
Implementation of core royalty logic, payment splitting, and administrative controls using Cairo 1.0, following StarkNet best practices for gas efficiency and security.
Solidity → Cairo
Expertise
OpenZeppelin
Standards Used
03
Comprehensive Security Audit
Multi-layered review including static analysis, manual code review, and scenario testing to identify vulnerabilities in royalty calculation, access control, and fund flows.
2 Auditors
Minimum Review
Critical & High
Issues Resolved
04
Testnet Deployment & Simulation
Full deployment on StarkNet testnet (Goerli) for integration testing, load simulation, and validation of royalty distribution under real-world conditions.
Testnet
Goerli
>1000 TX
Simulation Load
05
Mainnet Launch & Verification
Managed deployment to StarkNet Mainnet with final verification, frontend integration support, and real-time monitoring of initial transactions.
Scheduled
Zero-Downtime
24/7
Launch Support
06
Post-Launch Monitoring & Support
Proactive monitoring of contract performance and royalty events, with optional retainer for upgrades, new feature development, and ongoing optimization.
30 Days
Included Monitoring
SLAs
Available
StarkNet Royalty Engine
Frequently Asked Questions
Get clear answers about our Cairo-based royalty calculation engine development, from timelines and costs to security and ongoing support.
A standard royalty calculation engine for StarkNet, including smart contracts, off-chain indexer, and admin dashboard, takes 4-6 weeks from kickoff to mainnet deployment. Complex integrations (e.g., multi-chain support, advanced analytics) can extend this to 8-10 weeks. We follow a phased delivery model with weekly demos.
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