We architect and deploy production-grade smart contracts that form the immutable foundation of your Web3 application. Our development process ensures security-first design and cost-effective execution on-chain.
LABS
Services
StarkNet Cairo Circuit Customization
Expert development and optimization of Cairo programs and STARK-based circuits for StarkNet. We build custom logic that standard templates can't, delivering optimal performance, cost, and proving efficiency for your application.
Chainscore © 2026
overview
CORE ENGINEERING
Custom Smart Contract Development
Secure, gas-optimized smart contracts built to your exact specifications.
- Token Systems: Custom
ERC-20,ERC-721,ERC-1155tokens with tailored minting, vesting, and governance logic. - DeFi Protocols: Automated Market Makers (AMMs), lending/borrowing pools, staking mechanisms, and yield optimizers.
- Enterprise Logic: Multi-signature wallets, access control systems, and custom business logic for real-world asset (RWA) tokenization.
- Security & Audit-Ready: Built with
OpenZeppelinstandards, comprehensive unit testing, and documentation for seamless third-party audit.
We deliver a fully tested, documented, and deployable contract suite, typically within a 2-4 week sprint, ready for mainnet launch.
key-features-cards
EXPERTISE YOU CAN TRUST
Our Cairo & STARK Circuit Development Capabilities
We deliver production-ready, high-performance Cairo programs and STARK circuits that power scalable, secure, and cost-effective applications on StarkNet. Our focus is on delivering tangible business outcomes: faster time-to-market, reduced gas costs, and provable security.
01
Custom Cairo Smart Contract Development
We architect and deploy bespoke Cairo smart contracts for DeFi, NFTs, and gaming. Our contracts leverage Cairo 1.0 best practices, OpenZeppelin libraries, and are optimized for minimal prover costs and maximum throughput.
2-4 weeks
Avg. Delivery Time
40-60%
Avg. Gas Cost Reduction
02
High-Performance STARK Circuit Design
We design and implement custom STARK circuits for complex off-chain computations, enabling private transactions, verifiable ML, and high-throughput order books. We ensure optimal constraints and efficient proof generation.
< 5 sec
Proof Gen Target
99.9%
Circuit Uptime SLA
03
Security Audits & Formal Verification
Every circuit and contract undergoes rigorous internal review and can be submitted for external audits with partners like Nethermind and ABDK. We employ formal verification methods to mathematically prove correctness.
100%
Test Coverage Mandate
Certified
By Leading Auditors
04
ZK Application Architecture
We design full-stack ZK application architectures, integrating custom circuits with frontends and backend oracles. We handle the complexity of proof management, state synchronization, and fee abstraction.
End-to-End
System Design
Sub-Second
Verification Target
05
Performance Optimization & Gas Analytics
We profile and optimize your Cairo code and circuit constraints to minimize L1 verification costs and L2 transaction fees. We provide detailed gas analytics and benchmarking reports.
Up to 70%
Verification Cost Save
Comprehensive
Performance Report
06
Integration & Developer Enablement
We ensure seamless integration with existing systems and provide comprehensive documentation, SDKs, and training for your team to maintain and extend the codebase independently.
Full Docs
& Knowledge Transfer
Ongoing
Support SLA
benefits
MEASURABLE RESULTS
Business Outcomes of Custom Circuit Design
Custom Cairo circuits on StarkNet deliver tangible advantages beyond technical novelty. We architect for specific business metrics.
01
Radical Gas Cost Reduction
Optimized circuits target your application's specific logic, eliminating unnecessary computations. Achieve up to 90% lower gas fees for end-users compared to generic L1 execution.
Up to 90%
Gas Cost Reduction
Cairo 1.0+
Optimization Target
02
Sub-Second Transaction Finality
Bypass Ethereum's 12-second block times. Custom circuits enable complex operations to be proven and settled on L1 in under a second, unlocking real-time DeFi and gaming experiences.
< 1 sec
Proven Finality
StarkNet L2
Settlement Layer
03
Enhanced Data Privacy & Compliance
Implement privacy-preserving logic (e.g., zk-proofs for KYC) directly in the circuit. Enable compliant DeFi and enterprise applications without exposing sensitive user data on-chain.
ZK-Proofs
Privacy Tech
On-Chain KYC
Use Case
04
Scalability for Millions of Users
Design circuits that batch thousands of operations into a single proof. Scale your dApp's throughput linearly with StarkNet's capacity, supporting mass adoption.
1000+ TPS
Per Circuit
Batched Proofs
Core Method
05
Proven Security & Audit Readiness
We develop with formal verification principles and OpenZeppelin's Cairo libraries. Deliver production-ready circuits with comprehensive audit trails for institutional clients.
Formal Verification
Methodology
OpenZeppelin
Security Standard
06
Faster Time-to-Market
Leverage our library of reusable, audited circuit modules and proven development patterns. Deploy a custom, high-performance ZK application in weeks, not months.
4-6 weeks
Typical Delivery
Modular Library
Accelerator
Strategic Comparison
Custom Cairo Circuit Development vs. Template-Based Approach
Choosing the right development path for your StarkNet application impacts security, scalability, and long-term viability. This table compares the key differences between a custom-built solution and a templated approach.
| Development Factor | Template-Based (Generic) | Custom Cairo Circuit (Chainscore) |
|---|---|---|
Time to Initial Deployment | 1-2 weeks | 4-8 weeks |
Architectural Flexibility | ||
Gas Optimization Potential | Standard | Maximum (Circuit-Level) |
Security Audit & Review | Generic / None | Custom, Protocol-Specific |
Integration Complexity (e.g., Oracles, ZK-Proofs) | Limited | Native & Seamless |
Long-Term Maintainability & Upgrades | Vendor-Locked, Risky | Full Ownership, Future-Proof |
Total Cost of Ownership (Year 1) | $10K - $30K | $75K - $200K+ |
Ideal For | MVPs, Simple Logic | Production DApps, DeFi, Complex Protocols |
how-we-deliver
TRANSPARENT & PREDICTABLE
Our Proven Cairo Development Process
A systematic, milestone-driven approach to StarkNet circuit development that ensures on-time delivery, zero audit-critical bugs, and seamless integration.
01
Architecture & Specification
We begin by mapping your business logic to Cairo's computational model, defining circuit boundaries, and creating a formal spec. This upfront clarity prevents scope creep and ensures alignment.
1-2 weeks
Design Phase
0 audit-critical
Bugs from spec
02
Circuit Implementation
Our certified Cairo developers write, test, and optimize your custom circuits. We enforce strict patterns for gas efficiency and security, using our battle-tested internal libraries.
Solidity 0.8+
Pattern Parity
> 95%
Test Coverage
03
Security & Formal Verification
Every circuit undergoes rigorous testing, including property-based fuzzing and formal verification with tools like Giza. We deliver a comprehensive audit report.
2+ Auditors
Peer Review
100%
Formal Spec Adherence
04
Integration & Deployment
We handle the full deployment pipeline: compiling to CASM, deploying to StarkNet testnet/mainnet, and integrating with your front-end and off-chain services.
< 3 days
Avg. Deployment
24/7
Go-Live Support
security-rigor
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
We architect and deploy custom smart contracts that power your Web3 product, from ERC-20 tokens to complex DeFi protocols. Our focus is on security-first development using audited patterns from OpenZeppelin and rigorous internal testing.
Deliver a secure, auditable, and gas-optimized foundation in weeks, not months.
- End-to-End Delivery: Full lifecycle support from ideation and
Solidity 0.8+development to deployment onEVMchains and mainnet launch. - Proven Security: Multi-layered review process, including formal verification and pre-audit checks to mitigate risks before external audits.
- Business Logic Integration: Seamlessly connect on-chain contracts with your off-chain systems for a unified user experience.
Technical & Commercial Details
StarkNet Cairo Customization FAQs
Get clear, specific answers to the most common questions about our Cairo circuit customization service, from process and pricing to security and support.
Our engagement follows a structured 4-phase methodology: 1. Discovery & Scoping (1 week): We analyze your requirements and define the circuit logic. 2. Architecture & Design (1-2 weeks): We create detailed specs, including Cairo modules and proof system integration. 3. Development & Testing (2-6 weeks): Our engineers write, test, and benchmark the Cairo code. 4. Audit & Deployment (1-2 weeks): We conduct internal audits and assist with mainnet deployment. This process has been refined over 30+ StarkNet projects.
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