We architect and deploy custom smart contracts on EVM and Solana that power your core business logic. Our focus is on security-first development, utilizing audited libraries like OpenZeppelin and formal verification to mitigate risk.
LABS
Services
EVM KYC Integration SDK
A developer-first SDK for seamless KYC/AML integration into EVM-based dApps. Reduce integration time from weeks to days with pre-built smart contract modules, frontend widgets, and managed compliance logic.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
- Full Lifecycle Support: From initial design and
Solidity/Rustdevelopment to deployment, monitoring, and upgrade management. - Compliance & Standards: Built-in support for
ERC-20,ERC-721,ERC-1155, and custom tokenomics with regulatory considerations. - Gas Optimization: Every contract is optimized for minimum execution cost, reducing user fees and improving scalability.
We deliver battle-tested contracts with a 99.9% uptime SLA, enabling you to launch new features or entire protocols with confidence.
key-features-cards
COMPLETE INTEGRATION TOOLKIT
What's in the SDK
A production-ready, modular SDK designed for rapid deployment. We deliver the full stack—from secure smart contracts to developer-friendly APIs—so your team can focus on building your product, not the KYC plumbing.
01
On-Chain Verification Core
Gas-optimized, audited smart contracts for managing verification statuses, whitelists, and compliance rules directly on-chain. Built with OpenZeppelin standards for maximum security and upgradability.
Key Deliverables: Modular Solidity contracts, deployment scripts, and comprehensive test suites.
OpenZeppelin
Security Standard
ERC-20/721/1155
Token Compatible
02
Developer API & Middleware
RESTful and WebSocket APIs to initiate checks, fetch statuses, and manage user profiles. Includes webhook support for real-time event notifications and a built-in admin dashboard for manual overrides.
Key Deliverables: Fully documented API reference, Postman collection, and sample integration code.
< 100ms
P99 Latency
REST & WS
API Types
03
Compliance Rule Engine
A configurable engine to enforce jurisdictional rules, sanction screening (OFAC), and risk-based tiering. Rules are defined via a no-code dashboard and enforced automatically at the smart contract level.
Key Deliverables: Rule builder UI, geofencing modules, and audit logs.
OFAC, PEPs
Screenings
Real-time
Rule Updates
04
Frontend Widget Library
Pre-built, customizable React/Vue components for embedding KYC flows into your dApp. Handles wallet connection, document upload, and status display with a white-label design.
Key Deliverables: UI component library, theming guide, and live demo application.
React & Vue
Frameworks
White-label
Fully Custom
05
Deployment & DevOps Kit
Infrastructure-as-Code templates (Terraform) for AWS/GCP, CI/CD pipelines for automated testing and deployment, and monitoring dashboards for uptime and compliance metrics.
Key Deliverables: Terraform modules, Grafana dashboards, and SLA monitoring.
99.9%
Uptime SLA
AWS/GCP
Cloud Ready
06
Support & Documentation
Comprehensive technical documentation, integration guides for major frameworks (Hardhat, Foundry), and dedicated developer support to ensure a smooth launch.
Key Deliverables: Step-by-step tutorials, troubleshooting guides, and direct Slack channel access.
24/7
Dev Support
< 2 weeks
Go-Live Target
benefits
ENTERPRISE-GRADE
Why Choose Our KYC SDK
Our EVM KYC SDK is engineered for technical leaders who need compliance without compromising on user experience or development velocity. We deliver the tools to build trust and scale securely.
03
Gas-Optimized & Non-Custodial
On-chain verification proofs with minimal gas overhead. User data and verification status are stored off-chain; only the essential proof is anchored on the EVM, preserving user privacy and reducing costs.
< 100k gas
Avg. Verification Cost
Zero-Custody
Data Model
04
Multi-Chain & Modular
Deploy once, run everywhere. Our SDK supports Ethereum, Polygon, Arbitrum, Base, and other EVM L2s. A plugin architecture lets you swap verification providers without code changes.
15+
EVM Networks
Modular
Provider System
06
Built by Web3 Infrastructure Experts
Leverage our team's deep experience securing and scaling protocols handling billions. We've solved the hard problems of on-chain identity so you can focus on your core product.
$10B+
Assets Secured
5+ years
Web3 Expertise
The Smart Infrastructure Choice
Build vs. Buy vs. Our SDK
A clear comparison of the time, cost, and risk involved in developing EVM KYC integration from scratch, using a generic third-party service, or leveraging our purpose-built SDK.
| Key Factor | Build In-House | Generic Third-Party API | Chainscore EVM KYC SDK |
|---|---|---|---|
Time to Production | 6-12 months | 2-4 months | 2-4 weeks |
Upfront Development Cost | $150K - $400K+ | $25K - $75K | $15K - $50K |
Security & Audit Burden | High (Your responsibility) | Medium (Shared risk) | Low (Pre-audited, battle-tested) |
EVM Native Integration | Custom, complex | API-based, off-chain | Native, on-chain verifiable |
Gas Cost Optimization | Trial and error | Not applicable | Pre-optimized for L1/L2 |
Compliance Updates | Manual, reactive | Managed, but generic | Automated, protocol-specific |
Ongoing Maintenance | Full internal team | Vendor dependency | Optional SLA from experts |
Total Cost of Ownership (Year 1) | $200K - $500K+ | $50K - $100K | $30K - $80K |
how-we-deliver
STREAMLINED DEPLOYMENT
Our Integration Process
Get your EVM KYC solution live in weeks, not months. Our SDK is designed for seamless integration with your existing tech stack, minimizing engineering overhead and accelerating compliance readiness.
01
SDK Installation & Setup
Integrate our TypeScript/JavaScript SDK with a single npm install. Includes comprehensive initialization, environment configuration, and connection to our secure API endpoints.
< 1 hour
Initial Setup
TypeScript
First-Class Support
02
Smart Contract Integration
Deploy our pre-audited, upgradeable KYC verification contract to your EVM chain. We provide the contract address and ABI for seamless on-chain verification calls.
OpenZeppelin
Audit Standard
Multi-Chain
Deployment Ready
03
API & Webhook Configuration
Connect your backend to our REST API for user screening and verification status checks. Configure secure webhooks for real-time compliance event notifications.
99.9% SLA
API Uptime
< 100ms
P95 Latency
04
Frontend Component Integration
Embed our customizable React components or use our headless hooks to build your own UI for user onboarding, document collection, and verification status.
React/Tailwind
Component Library
Fully Customizable
Branding
05
Testing & Staging Deployment
Utilize our dedicated sandbox environment with test credentials and simulated compliance scenarios. Validate the full user flow before going live.
Full Sandbox
Test Environment
Live Simulations
Compliance Scenarios
06
Production Go-Live & Support
We manage the cutover to production APIs and smart contracts. Includes 24/7 technical support, monitoring dashboards, and dedicated Slack channel access.
24/7
Engineering Support
Real-time
Health Dashboard
EVM KYC Integration SDK
Frequently Asked Questions
Get clear answers on how our SDK simplifies compliant on-chain identity verification for your protocol.
For a standard integration, most teams complete the initial setup and testing in 1-2 weeks. This includes embedding our widget, configuring verification levels, and connecting to your smart contracts. Complex customizations or multi-chain deployments may extend this to 3-4 weeks.
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