We architect and deploy custom smart contracts that form the backbone of your Web3 application. Our focus is on security-first development, utilizing battle-tested patterns from OpenZeppelin and rigorous internal audits to mitigate risk before deployment.
LABS
Services
ZK-Rollup Privacy Payment Gateway
Chainscore designs and implements privacy-enhanced stablecoin payment gateways using zk-rollup technology. We deliver compliant solutions that shield transaction amounts and participant details, enabling confidential business payments and remittances.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for speed and reliability.
- Standard & Custom Tokens:
ERC-20,ERC-721,ERC-1155with custom extensions for staking, vesting, and governance. - DeFi & dApp Logic: Automated market makers (AMMs), lending pools, yield aggregators, and NFT marketplaces.
- Gas Optimization: Code reviews and optimization to reduce transaction costs by up to 40% for your users.
- Full Lifecycle Support: From initial design and
Hardhat/Foundrytesting to mainnet deployment and verification onEtherscan.
We deliver audited, production-grade contracts in 2-4 weeks, enabling you to launch faster with confidence in your protocol's security and efficiency.
key-features-cards
ENGINEERED FOR ENTERPRISE
Core Technical Capabilities
Our ZK-Rollup Privacy Payment Gateway is built on a foundation of battle-tested cryptography and infrastructure designed for high-volume, secure transactions. We deliver the technical depth your CTO demands with the operational simplicity your business needs.
02
Enterprise-Grade Rollup Infrastructure
Dedicated, horizontally-scalable sequencer and prover nodes. We manage the full stack—from mempool ordering to state commitment—ensuring 99.9% uptime SLA and handling over 10,000 TPS off-chain.
99.9%
Uptime SLA
10k+ TPS
Off-Chain Capacity
04
Multi-Chain Settlement & Liquidity
Settle privately on Ethereum, Arbitrum, or Polygon via canonical bridges. Our gateway manages cross-chain liquidity pools, enabling seamless private payments across major L2 ecosystems.
Ethereum L1
Primary Settlement
Arbitrum, Polygon
Supported L2s
06
Developer SDK & APIs
Comprehensive TypeScript/Go SDKs and REST APIs for easy integration. Includes wallet abstraction, transaction batching, and real-time status monitoring, reducing integration time to under 2 weeks.
TypeScript, Go
SDK Languages
< 2 weeks
Typical Integration
benefits
ENTERPRISE-GRADE RESULTS
Business Outcomes for Your Payment Platform
Our ZK-Rollup Privacy Payment Gateway delivers measurable advantages that directly impact your bottom line and competitive position.
01
Regulatory Compliance by Design
Built-in transaction privacy with selective disclosure for audits. Our architecture integrates with KYC/AML providers, ensuring you meet FinCEN, FATF Travel Rule, and MiCA standards without sacrificing user experience.
0
Compliance Violations
Full Audit Trail
On-Chain
02
Sub-Cent Transaction Costs
Batch thousands of private payments into a single L1 settlement. Drastically reduce gas fees for your users, enabling microtransactions and new business models previously cost-prohibitive on Ethereum mainnet.
< $0.01
Avg. Fee
1000x
Cost Reduction
03
Bank-Grade Settlement Finality
ZK-proofs provide cryptographic certainty in seconds, not days. Eliminate chargeback risk and settlement delays, giving you and your users instant, irreversible confirmation for high-value transactions.
< 2 sec
Finality Time
100%
Settlement Certainty
04
Scalable Enterprise Throughput
Process over 2,000 private transactions per second (TPS) on a dedicated rollup. Handle Black Friday-level volume spikes without network congestion or degraded performance for your users.
2,000+
TPS Capacity
99.9%
Uptime SLA
05
Reduced Operational Overhead
We manage the entire ZK-Rollup stack—provers, sequencers, and bridge security. Your team focuses on product, not infrastructure maintenance, cutting DevOps costs and complexity.
70%
Lower OpEx
24/7
Managed Service
06
Faster Time-to-Market
Deploy a production-ready, audited privacy payment gateway in weeks, not years. Leverage our pre-built modules for wallets, fiat on/off ramps, and multi-chain liquidity bridges.
< 6 weeks
To Production
Pre-Audited
Codebase
Infrastructure Decision Matrix
Build vs. Buy: ZK-Rollup Privacy Gateway
A detailed comparison of the time, cost, and risk involved in developing a ZK-Rollup privacy payment gateway in-house versus partnering with Chainscore Labs.
| Factor | Build In-House | Chainscore Managed Service |
|---|---|---|
Time to Production | 6-12+ months | 4-8 weeks |
Initial Development Cost | $250K - $600K+ | $50K - $150K |
Core Team Required | 3-5 Senior ZK Engineers | Your Integration Team |
ZK Circuit & Prover Development | High Risk, Unaudited | Pre-audited, Production-Ready |
Gateway Smart Contracts | Custom Build & Audit Required | Deploy Audited, Upgradeable Contracts |
Ongoing Maintenance & Upgrades | Full DevOps & Engineering Team | Included with Optional SLA |
Security Posture | Your Responsibility | Enterprise-Grade with 24/7 Monitoring |
Protocol Upkeep (EIPs, Hard Forks) | Manual, Reactive | Managed, Proactive |
Total Year 1 Cost (Est.) | $400K - $800K+ | $80K - $200K |
Best For | Teams with deep ZK expertise and unlimited runway | Startups & enterprises needing secure, scalable privacy fast |
how-we-deliver
PROVEN METHODOLOGY
Our Delivery Process: From Audit to Mainnet
A structured, security-first approach to deliver a production-ready ZK-Rollup payment gateway. We manage the full lifecycle, ensuring compliance, performance, and seamless integration with your existing systems.
01
Architecture & Smart Contract Audit
We conduct a comprehensive security audit of your existing payment logic and design a custom ZK-Rollup architecture. This includes threat modeling, gas optimization analysis, and finalizing the on-chain/off-chain data flow.
100%
Code Coverage
< 48 hrs
Audit Report
02
ZK-Circuit Development & Proving
Our cryptographers implement custom zk-SNARK/STARK circuits for your payment privacy rules. We develop the prover/verifier logic and optimize for proof generation speed, a critical factor for user experience.
Sub-Second
Proof Generation
Plonk / Starky
Proving System
03
Sequencer & Node Infrastructure
We deploy a high-availability sequencer node to batch transactions and a full node network for data availability. Infrastructure is built with multi-cloud redundancy and automated failover protocols.
99.95%
Uptime SLA
< 100ms
Batch Finality
04
Gateway SDK & API Integration
We deliver a lightweight SDK and REST/WebSocket APIs for your frontend and backend. Includes modules for deposit/withdrawal, transaction status, and real-time balance checks, with full documentation.
TypeScript / Go
SDK Support
3 Days
Integration Time
05
Testnet Deployment & Stress Testing
Full deployment to a public testnet (e.g., Sepolia, Holesky) for integration testing. We execute load tests simulating peak transaction volumes and conduct a closed beta with select users.
10k TPS
Load Test Target
Zero
Critical Bugs
06
Mainnet Launch & Monitoring
Managed mainnet deployment with phased roll-out. We provide 24/7 monitoring dashboards for sequencer health, proof costs, and transaction success rates, with ongoing support.
24/7
SRE Support
1 Hour
Incident Response
From Architecture to Mainnet
Typical 10-Week Delivery Timeline
A phased delivery plan for a production-ready ZK-Rollup payment gateway, detailing key milestones and deliverables for each sprint.
| Phase & Week | Key Deliverables | Client Involvement | Outcome |
|---|---|---|---|
Weeks 1-2: Discovery & Architecture | Technical spec, privacy model design, infrastructure diagram | Requirements workshop, sign-off on architecture | Finalized project scope and technical blueprint |
Weeks 3-5: Core Development | ZK circuit logic, smart contracts (deposit/withdraw/transfer), sequencer prototype | Bi-weekly demos, feedback on circuit design | Functional core system in test environment |
Weeks 6-7: Integration & Testing | Wallet/merchant API, comprehensive test suite, initial security audit | API integration testing, UAT environment access | End-to-end payment flow verified, audit report v1 |
Weeks 8-9: Staging & Optimization | Deployment to testnet, performance load testing, final security audit | Staging environment testing, compliance checks | Audited, performance-tested system ready for mainnet |
Week 10: Launch & Handover | Mainnet deployment, monitoring dashboard, technical documentation | Go/No-Go decision, production keys setup | Live payment gateway with full operational handover |
ZK-Rollup Payment Gateway
Frequently Asked Questions
Get clear answers on development timelines, security, and integration for your private payment solution.
A standard deployment takes 4-8 weeks from kickoff to mainnet launch. This includes 2 weeks for architecture design and smart contract development, 2-3 weeks for core gateway and zk-circuit implementation, 1 week for internal security review, and 1-2 weeks for integration testing and deployment. Complex requirements like multi-chain support or custom compliance logic can extend the timeline, which we scope and agree upon upfront.
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