We architect and deploy secure, auditable smart contracts that form the core logic of your Web3 application. Our development process is built on OpenZeppelin standards and formal verification practices to mitigate risks and ensure reliability from day one.
LABS
Services
EVM-Based KYC Reputation Oracle Development
We build custom oracle networks that pull authenticated KYC/AML data on-chain to create portable, verifiable reputation scores for wallets, enabling compliant and risk-aware DeFi applications.
Chainscore © 2026
overview
SECURE FOUNDATION
Custom Smart Contract Development
Production-ready smart contracts built with enterprise-grade security and gas optimization.
A secure, well-architected contract is your product's most critical asset. We treat it as such.
- Protocol Development: Custom
ERC-20,ERC-721,ERC-1155, and bespoke token standards. - DeFi & DAO Logic: Automated market makers, staking pools, governance modules, and multi-sig wallets.
- Gas Optimization: Every line of
SolidityorRustis written for minimum execution cost and maximum efficiency. - Full Audit Trail: Code is developed with audit-readiness in mind, following ConsenSys Diligence and Trail of Bits security patterns.
key-features-cards
ENTERPRISE-GRADE INFRASTRUCTURE
Core Capabilities of Your Custom KYC Reputation Oracle
We deliver production-ready, secure, and scalable KYC reputation oracles that integrate seamlessly with your dApp's logic, enabling compliant user onboarding and risk assessment on-chain.
benefits
DELIVERABLES
Business Outcomes: Enable Compliant Growth
Our EVM-Based KYC Reputation Oracle delivers more than just data—it provides the secure, auditable infrastructure required for sustainable, regulation-ready expansion in DeFi and Web3.
01
Automated Regulatory Compliance
Integrate real-time AML/KYC checks directly into your smart contracts. Our oracle pulls verified identity data, enabling automated, on-chain enforcement of jurisdictional requirements without manual review bottlenecks.
< 500ms
Verification Latency
Global
Coverage
02
Risk-Based Access Controls
Implement tiered user permissions and transaction limits based on verified reputation scores. Build compliant DeFi products with graduated access, reducing exposure to bad actors while rewarding legitimate users.
Multi-tier
Permissioning
Real-time
Score Updates
03
Auditable Compliance Trail
Every verification and reputation update is immutably logged on-chain. Generate regulator-ready audit reports in minutes, proving adherence to AML/CFT frameworks and simplifying legal due diligence.
Immutable
On-Chain Logs
Minutes
Report Generation
04
Seamless Multi-Chain Deployment
Deploy a unified KYC reputation layer across Ethereum, Polygon, Arbitrum, and other EVM chains. Maintain consistent user identity and compliance rules regardless of the underlying network.
EVM Native
Architecture
< 2 Weeks
Integration Time
05
Enterprise-Grade Data Security
Built with privacy-by-design principles. Sensitive PII is never stored on-chain; our oracle uses zero-knowledge proofs and secure off-chain computation to deliver verifiable claims without exposing raw data.
ZK-Proofs
Privacy Tech
SOC 2 Type II
Compliance
06
Scalable Reputation Framework
Go beyond basic KYC with a programmable reputation system. Score users based on transaction history, on-chain behavior, and third-party attestations to enable sophisticated, compliant financial products.
Programmable
Logic
99.9% SLA
Uptime
Strategic Decision Matrix
Build vs. Buy: Custom Oracle vs. Generic Solutions
A detailed comparison of the total cost, risk, and time commitment for developing a custom EVM-based KYC reputation oracle in-house versus partnering with Chainscore Labs.
| Key Factor | Build In-House | Generic Oracle Service | Chainscore Custom Oracle |
|---|---|---|---|
Time to Production | 6-12 months | 2-4 weeks | 4-8 weeks |
Initial Development Cost | $150K - $400K+ | $5K - $20K / year | $50K - $150K |
Ongoing Maintenance Cost | $100K+ / year (team) | $10K - $50K / year (fees) | Optional SLA from $30K / year |
Security & Audit Burden | High (Your responsibility) | Medium (Shared risk) | Low (Pre-audited, insured) |
Custom Logic & Compliance | Fully customizable | Limited to templates | Tailored to your jurisdiction |
Data Source Flexibility | Full control | Pre-defined providers | Custom on/off-chain integrations |
Team Requirements | 3-5 senior Solidity/DevOps engineers | 1-2 integration engineers | Your product team + our experts |
Uptime & Reliability SLA | You build it (0% SLA) | 99.5% - 99.9% | 99.95% with penalties |
Upgrade & Scalability Path | Complex, requires fork | Dependent on vendor roadmap | Architected for your growth |
Total Cost of Ownership (Year 1) | $250K - $500K+ | $15K - $70K | $80K - $180K |
how-we-deliver
PROVEN METHODOLOGY
Our Development & Integration Process
A structured, security-first approach to deliver a production-ready KYC reputation oracle that integrates seamlessly with your existing EVM infrastructure.
01
Requirement & Architecture Design
We conduct a deep-dive workshop to define your specific KYC logic, reputation scoring model, and integration points. We deliver a detailed technical specification and architecture diagram for your review.
2-3 days
Workshop
100%
Spec Sign-off
02
Smart Contract Development & Auditing
Our team builds the core oracle contracts (Aggregator, Verifier, Reputation Registry) in Solidity 0.8+. All code undergoes internal review and a formal audit by a third-party security firm before deployment.
4-6 weeks
Dev + Audit
Certified
Security Audit
03
Off-Chain Connector & API Development
We develop the secure, scalable off-chain service that fetches, verifies, and processes KYC data. This includes REST/GraphQL APIs for data submission and querying, with built-in rate limiting and monitoring.
99.9%
Uptime SLA
< 200ms
P95 Latency
04
Staging Deployment & Integration Testing
We deploy the full oracle stack to a testnet/staging environment of your choice. We provide comprehensive integration test suites and work with your team to validate end-to-end data flows and contract interactions.
1-2 weeks
Testing Phase
Full Suite
E2E Tests
05
Mainnet Launch & Monitoring
We manage the secure mainnet deployment, including multi-sig wallet setup for admin functions. We provide a dedicated dashboard for real-time monitoring of oracle health, data accuracy, and performance metrics.
24/7
Monitoring
< 1 day
Go-Live Support
06
Documentation & Ongoing Support
You receive complete technical documentation, integration guides, and SDKs. We offer tiered support plans with guaranteed SLAs for incident response, updates, and maintenance.
Guaranteed
Response SLA
Comprehensive
Docs & SDKs
security-compliance
CORE ENGINEERING
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
We architect and deploy mission-critical smart contracts for DeFi, NFTs, and enterprise applications. Our code is battle-tested for gas efficiency, security, and upgradability.
- Audit-Ready Code: Built with
Solidity 0.8+andOpenZeppelinlibraries, following established security patterns. - Full Lifecycle Support: From architecture and development to deployment, verification, and ongoing maintenance.
- Compliance-First: Integrate
ERC-20,ERC-721, and custom standards with built-in regulatory hooks.
Deliver a secure, auditable foundation for your protocol in as little as 2-4 weeks.
Technical & Commercial FAQs
KYC Reputation Oracle: Key Questions
Answers to the most common questions CTOs and founders ask when evaluating a custom KYC Reputation Oracle.
For a standard EVM-based KYC Reputation Oracle, we deliver a production-ready system in 4-6 weeks. This includes smart contract development, off-chain verifier service, integration testing, and a security audit. Complex requirements like multi-chain support or custom compliance rules can extend this to 8-10 weeks. We provide a detailed week-by-week project plan at kickoff.
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