We architect and deploy audit-ready smart contracts that power your core business logic. Our engineers specialize in Solidity and Rust, implementing battle-tested patterns from OpenZeppelin and Solana Program Library.
LABS
Services
Compliant DeFi KYC Storage Gateway
A specialized data gateway that enables DeFi protocols to access necessary KYC/AML attestations on-chain without holding raw user data. Maintain decentralization while meeting global compliance requirements.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3-native engineers.
- Security-First Development: Every line undergoes internal review against OWASP Top 10 and common DeFi exploits before formal audit.
- Gas Optimization: We reduce transaction costs by 15-40% through efficient storage patterns and opcode-level tuning.
- Full Lifecycle Support: From initial spec to mainnet deployment and post-launch upgrade management via transparent proxy patterns.
Deliver a secure, scalable foundation. We handle the complexity so you can focus on product-market fit.
key-features-cards
ENTERPRISE-GRADE INFRASTRUCTURE
Core Architecture & Features
Our gateway is engineered for regulated DeFi, providing the secure, compliant, and performant data layer required for institutional adoption. We handle the complexity so you can focus on product innovation.
02
Multi-Chain Storage Layer
Securely store and attest KYC data across Ethereum, Polygon, Arbitrum, and other EVM chains. Our gateway abstracts chain-specific complexity for a unified API.
10+
Supported Chains
Single API
Unified Interface
03
Real-Time Compliance Attestation
Automatically generate cryptographic attestations for AML screening, jurisdiction checks, and accreditation status. Provides auditable proof of compliance for every transaction.
< 500ms
Attestation Latency
Immutable
Audit Trail
04
Programmable Privacy Controls
Implement granular, rule-based data access. Define which protocols can query specific KYC attributes, ensuring data minimization and regulatory adherence.
Role-Based
Access Control
Gas-Optimized
On-Chain Checks
05
High-Availability Node Network
Deployed across geographically distributed, fault-tolerant nodes. Ensures sub-second response times and 99.9% uptime for critical compliance operations.
99.9%
Uptime SLA
< 1 sec
P99 Latency
benefits
DELIVERABLES
Business Outcomes for Your Protocol
Our Compliant DeFi KYC Storage Gateway delivers measurable infrastructure advantages, enabling you to launch faster, operate securely, and scale with confidence.
01
Accelerated Time-to-Market
Deploy a fully integrated, compliant KYC verification layer in under 2 weeks, not months. We provide pre-built connectors for major KYC providers and wallet SDKs.
< 2 weeks
Integration Time
5+
Pre-built Connectors
02
Regulatory Confidence
Build with a solution designed for evolving global compliance (FATF Travel Rule, MiCA). Our architecture supports selective data disclosure and audit trails for regulators.
GDPR/CCPA
Data Privacy
FATF/MiCA
Compliance Ready
03
Enhanced User Security
Implement non-custodial, encrypted KYC data storage. User credentials and PII are never held on your servers, drastically reducing your liability and attack surface.
Zero-Knowledge
Proof Capability
SOC 2
Infrastructure
04
Reduced Operational Overhead
Eliminate the cost and complexity of managing KYC data storage, encryption, and deletion. We handle infrastructure, security patches, and compliance updates.
~70%
Cost Reduction
99.9%
Uptime SLA
05
Scalable On-Chain Integration
Seamlessly gate smart contract functions and token transfers based on verified user status. Our gateway scales to handle millions of verification checks with sub-second latency.
< 500ms
Verification Latency
Million+ TPS
Theoretical Scale
Cost & Risk Analysis
Build vs. Buy: KYC Compliance Strategy
A direct comparison of the effort, risk, and total cost of ownership for building a compliant KYC storage gateway in-house versus using Chainscore's managed service.
| Factor | Build In-House | Chainscore Managed Service |
|---|---|---|
Initial Development Time | 6-12 months | 2-4 weeks |
Security & Audit Burden | High (Your team's responsibility) | Low (Pre-audited, battle-tested code) |
Regulatory Compliance Coverage | Requires legal review per jurisdiction | Pre-built for FATF Travel Rule, AML/CFT |
Ongoing Maintenance & Updates | Dedicated DevOps & security team | Fully managed with 99.9% SLA |
Integration Complexity | High (Custom API, key management) | Low (Standardized REST & Web3 APIs) |
Data Sovereignty & Privacy | Your infrastructure, your liability | Zero-knowledge proofs, encrypted storage |
Total Cost (First Year) | $250K - $600K+ | $75K - $200K |
Time to First Compliant Transaction | 9+ months | < 30 days |
how-we-deliver
PREDICTABLE, SECURE, AND SCALABLE
Our Delivery Process: From Design to Mainnet
A transparent, phased approach to deliver your compliant DeFi KYC storage gateway with enterprise-grade security and zero operational overhead for your team.
01
Phase 1: Architecture & Compliance Design
We conduct a deep-dive workshop to map your user flows, regulatory requirements, and data privacy needs. We deliver a detailed technical specification and architecture diagram for your KYC storage gateway, ensuring compliance with GDPR, CCPA, and AML frameworks from day one.
2-3 days
Workshop & Scoping
100%
Requirement Sign-off
02
Phase 2: Smart Contract & Gateway Development
Our engineers build your custom, gas-optimized smart contracts for KYC credential management using Solidity 0.8+ and OpenZeppelin libraries. We develop the secure off-chain gateway API with encrypted storage, role-based access control, and integration hooks for your dApp.
2-3 weeks
Development Sprint
Zero-Knowledge
Proof Integration
03
Phase 3: Security Audit & Penetration Testing
Every line of code undergoes rigorous internal review followed by a formal audit from our partner security firms. We conduct penetration testing on the gateway API and provide a final audit report with remediation, ensuring your system is mainnet-ready.
Certified
Audit Partners
0 Critical
Issues Guarantee
04
Phase 4: Staging Deployment & Integration
We deploy the complete system to a staging environment on your chosen testnet (e.g., Sepolia, Mumbai). We provide comprehensive integration guides and SDKs, and work directly with your developers to connect your dApp front-end and back-end services.
< 48 hours
Deployment Time
Full SDK
& Documentation
05
Phase 5: Mainnet Launch & Monitoring
We manage the secure mainnet deployment on Ethereum, Polygon, or your selected L2. We establish 24/7 monitoring, alerting, and performance dashboards, and provide a detailed handover document for your operations team.
99.9%
Uptime SLA
24/7
Health Monitoring
06
Phase 6: Ongoing Support & Upgrades
Your subscription includes proactive maintenance, security patch deployment, and compliance updates for evolving regulations. We offer scalable support plans for feature additions, user volume growth, and multi-chain expansion.
< 1 hour
Critical Response
Guaranteed
Regulatory Updates
security-compliance
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 experts to power your protocol.
We architect and deploy custom, gas-optimized smart contracts for DeFi, NFTs, DAOs, and enterprise applications. Our team delivers audit-ready code from day one, following OpenZeppelin standards and best practices for EVM and Solana.
Reduce your time-to-market from months to weeks with our battle-tested development framework.
- Security-First Development: Comprehensive testing, formal verification, and integration with
SlitherandMythXbefore deployment. - Full-Stack Integration: Contracts are delivered with
Hardhat/Foundryscripts, deployment pipelines, and frontend SDKs. - Post-Launch Support: We provide monitoring, upgradeability patterns, and emergency response plans.
Compliant DeFi KYC Storage Gateway
Frequently Asked Questions
Get clear answers about our secure, compliant storage solution for verified user data in decentralized finance.
Our gateway acts as a secure middleware layer. Your protocol's smart contracts query our on-chain verifier contract with a user's wallet address. We return a simple boolean attestation (verified/not verified) based on encrypted, off-chain KYC data stored in our secure, compliant vault. This keeps sensitive PII off-chain while providing the on-chain proof needed for gated access, all with sub-500ms latency.
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