We architect and deploy custom smart contracts on EVM chains (Ethereum, Polygon, Arbitrum) and Solana. Our development process is built for security and speed, delivering a production-ready MVP in 2-4 weeks.
LABS
Services
StarkNet Cairo ZK-Rollup Payment Infrastructure
We build enterprise-grade payment and remittance systems using StarkNet's Cairo VM and ZK-rollups. Deliver real-time settlement with cryptographic privacy and 100x lower costs than L1.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 experts for your token, DeFi, or NFT project.
From tokenomics to mainnet launch, we handle the entire smart contract lifecycle with enterprise-grade rigor.
- Token Standards:
ERC-20,ERC-721,ERC-1155,SPL, and custom implementations. - DeFi Protocols: DEXs, lending/borrowing platforms, staking, and yield aggregators.
- Security First: Code follows
OpenZeppelinbest practices and undergoes internal + third-party audits. - Full Ownership: You receive all source code, deployment scripts, and documentation.
key-features-cards
BUILT FOR PRODUCTION
Core Technical Capabilities
Our StarkNet payment infrastructure is engineered for enterprise-grade reliability, security, and performance. We deliver the foundational components you need to launch and scale.
01
Custom Payment Smart Contracts
We design and deploy secure, gas-optimized payment logic in Cairo 1.0. From subscription models to batch settlements, our contracts are built with OpenZeppelin patterns and undergo rigorous security review.
Cairo 1.0
Language
100%
Custom Logic
02
ZK-Rollup Infrastructure
We architect and manage your dedicated StarkNet sequencer and prover infrastructure. This ensures sub-second finality for user transactions and inherits Ethereum's security for settlement.
< 1 sec
Tx Finality
L1 Security
Settlement
03
Account Abstraction (AA) Wallets
Implement ERC-4337-compatible smart accounts to enable gas sponsorship, batch transactions, and social recovery. Remove UX friction without compromising security or self-custody.
ERC-4337
Standard
Gasless
User Onboarding
05
Real-Time Indexing & APIs
Get instant access to payment events, wallet balances, and transaction history via our low-latency GraphQL APIs. Built on a dedicated StarkNet full node for 99.9% data reliability.
GraphQL
API
99.9%
Data Uptime
06
Security & Audit Readiness
Our development process includes formal verification where applicable and prepares all code for third-party audits. We provide comprehensive test suites and documentation for auditor review.
Formal Verification
Methodology
Audit-Ready
Deliverable
benefits
ENGINEERED FOR SCALE
Business Outcomes for Your Payment Product
Our StarkNet Cairo ZK-Rollup infrastructure delivers measurable improvements in cost, speed, and security, directly impacting your product's bottom line and user experience.
01
Radically Lower Transaction Costs
Move payment processing from expensive L1 mainnets to a secure ZK-Rollup. Achieve >90% reduction in gas fees for users and your business, enabling micro-transactions and new business models.
>90%
Gas Cost Reduction
< $0.01
Avg. Tx Cost
02
Enterprise-Grade Security & Compliance
Build on a provably secure ZK-Rollup with Cairo's formal verification capabilities. Our infrastructure includes multi-sig governance, rate limiting, and compliance tooling for institutional adoption.
100%
ZK-Proof Validity
SOC 2 Type II
Framework
03
Sub-Second Finality & High Throughput
Deliver instant payment confirmation with ZK-proof finality. Our optimized Cairo contracts and node infrastructure support thousands of TPS, eliminating network congestion as a bottleneck.
< 1 sec
Finality Time
4,000+
TPS Capacity
04
Faster Time-to-Market
Leverage our battle-tested payment infrastructure templates and Cairo development expertise. Go from concept to live StarkNet payment product in weeks, not months, with full audit support.
2-4 weeks
MVP Launch
24/7
DevOps Support
05
Seamless Fiat On/Off Ramps
Integrate pre-built, compliant bridges and payment gateway connectors. Offer users smooth deposits and withdrawals between crypto and traditional banking systems, increasing adoption.
10+
Gateway Partners
< 5 min
Fiat Settlement
06
Scalable Infrastructure Management
Eliminate DevOps overhead with our fully managed node infrastructure, monitoring, and alerting. Benefit from 99.9% uptime SLA, automatic scaling, and dedicated technical account management.
99.9%
Uptime SLA
< 30 min
Incident Response
Choose Your Development Path
StarkNet Payment Infrastructure Build Tiers
Compare our structured service tiers for building secure, scalable payment systems on StarkNet's ZK-Rollup. Each tier includes Cairo smart contract development, testing, and deployment.
| Core Deliverables | Starter | Professional | Enterprise |
|---|---|---|---|
Custom Cairo Smart Contracts | |||
Security Audit & Formal Verification | Basic Review | Full Audit Report | Audit + Formal Verification |
Integration Support | Wallet & RPC | Multi-Wallet & Indexer | Full Stack & Legacy Systems |
Deployment & Configuration | Mainnet Only | Testnet + Mainnet | Multi-Chain Strategy |
Performance Optimization | Gas & Fee Analysis | Custom Sequencer Logic | |
Ongoing Support SLA | Email (5-day) | Slack (24h) | Dedicated Engineer (4h) |
Uptime & Monitoring | Basic Alerts | 24/7 Dashboard & PagerDuty | |
Compliance Features | Basic KYC/AML Hooks | Custom Regulatory Module | |
Estimated Timeline | 3-4 weeks | 6-8 weeks | 10-12 weeks |
Starting Price | $25,000 | $75,000 | Custom Quote |
how-we-deliver
PROVEN PROCESS
Our Delivery Methodology
We deliver production-ready StarkNet payment infrastructure through a structured, milestone-driven approach that ensures transparency, security, and rapid deployment.
01
Architecture & Design Sprint
We begin with a collaborative 1-week sprint to define your payment flow architecture, token standards (ERC-20, ERC-721), and integration points with your existing systems.
1 week
Design Sprint
100%
Requirements Locked
02
Secure Cairo Smart Contract Development
Our certified Cairo developers build your core payment logic using OpenZeppelin libraries, implementing formal verification patterns from day one to ensure mathematical correctness.
OpenZeppelin
Security Standard
Formal Verification
Core Practice
04
Staged Mainnet Deployment
We deploy to StarkNet mainnet using a phased rollout: testnet validation, limited beta with real funds, and full production launch with 24/7 monitoring.
< 2 weeks
Deployment Timeline
3 Stages
Rollout Phases
05
Performance Optimization & Tuning
Post-launch, we analyze L1 settlement costs, L2 transaction latency, and gas consumption, delivering optimization reports and implementation sprints.
30-50%
Typical Gas Reduction
< 1 sec
L2 Finality Target
06
Ongoing Support & Upgrades
You receive dedicated developer support, proactive monitoring dashboards, and scheduled upgrades for Cairo VM and StarkNet OS improvements.
99.9%
Uptime SLA
< 1 hour
Critical Response
StarkNet Payment Infrastructure
Frequently Asked Questions
Get clear answers on our process, timeline, and security for building your ZK-Rollup payment solution.
Our process follows a structured 4-phase approach: 1. Discovery & Scoping (1 week) – We analyze your requirements and define the technical architecture. 2. Development & Iteration (2-4 weeks) – Our Cairo experts build the core payment logic, smart contracts, and frontend integration. 3. Security & Testing (1-2 weeks) – We conduct internal audits, formal verification, and comprehensive testing on testnet. 4. Deployment & Support – We manage mainnet deployment and provide 90 days of post-launch support. We provide weekly demos and maintain a shared backlog for full transparency.
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