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Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
LABS
Services

Decentralized Identity (DID) KYC Aggregator

We build a smart contract-based registry that aggregates trust from multiple DID issuers (governments, banks) to create a single, portable KYC credential for compliant cross-border payments and remittance.
Chainscore © 2026
overview
CORE SERVICE

Smart Contract Development

Secure, production-ready smart contracts built for scale and compliance.

We architect and deploy custom smart contracts that power your core business logic. Our development process ensures security-first design, gas optimization, and audit readiness from day one.

Deliver a battle-tested, secure foundation for your Web3 product in 2-4 weeks.

Our development stack includes:

  • Languages & Frameworks: Solidity (0.8+), Vyper, Hardhat, Foundry.
  • Security Standards: OpenZeppelin libraries, formal verification patterns, and comprehensive unit/integration testing.
  • Protocol Expertise: ERC-20, ERC-721, ERC-1155, ERC-4626, and custom cross-chain standards.

Deliverables you receive:

  • Production Code: Fully documented, optimized, and version-controlled source code.
  • Security Audit Report: A detailed report from our internal review, prepping you for third-party audits.
  • Deployment Scripts & Verification: Automated scripts for testnet and mainnet deployment with full Etherscan verification.
key-features-cards
BUILT FOR SCALE AND COMPLIANCE

Core Technical Capabilities

Our Decentralized Identity KYC Aggregator is engineered for enterprise-grade reliability, security, and seamless integration. We deliver the technical foundation to verify users, not just transactions.

02

On-Chain & Off-Chain Verification Engine

Hybrid verification architecture that balances privacy with auditability. Store sensitive PII off-chain with zero-knowledge proofs while anchoring verification status and compliance flags on-chain for immutable audit trails.

ZK-SNARKs
Privacy Tech
99.9%
Query Accuracy
04

High-Availability Aggregator API

RESTful and GraphQL APIs with 99.9% uptime SLA, built for high-throughput applications. Features include webhook notifications, batch processing, and detailed analytics on verification flows and user cohorts.

99.9%
Uptime SLA
< 2 weeks
Integration Time
06

Customizable SDKs & Developer Tools

Accelerate integration with our TypeScript/React and mobile SDKs. Includes pre-built UI components for verification flows, webhook simulators, and a local sandbox environment for rapid testing and development.

TypeScript
Primary SDK
3 days
Avg. POC Build
benefits
TANGIBLE RESULTS

Business Outcomes for Your Platform

Our Decentralized Identity KYC Aggregator delivers measurable improvements to your compliance, user experience, and operational efficiency. See the concrete benefits for your business.

01

Accelerated User Onboarding

Integrate a single API to access multiple KYC providers, reducing user verification time from days to minutes. Eliminate the need for users to repeat KYC across your ecosystem.

< 2 min
Average Verification
90%
Faster Onboarding
02

Enhanced Compliance & Risk Management

Leverage aggregated data and cross-provider checks to build a robust risk profile for each user, ensuring adherence to global AML/CFT regulations like FATF Travel Rule.

Zero
Compliance Gaps
24/7
Monitoring
03

Reduced Operational Costs

Consolidate vendor management and eliminate redundant KYC subscriptions. Pay only for the verification checks you need, with transparent, usage-based billing.

40-60%
Cost Reduction
Single
Vendor Contract
04

Improved User Privacy & Control

Implement user-centric, portable identity credentials (W3C Verifiable Credentials). Users own their data, share only what's necessary, and can reuse credentials across platforms.

Zero-Knowledge
Proofs Supported
User-Owned
Data Sovereignty
05

Seamless Cross-Platform Interoperability

Enable verified users to move frictionlessly between your DeFi, NFT, and gaming dApps. Build a unified identity layer that works across your entire product suite.

Unified
Identity Layer
Multi-Chain
Compatibility
06

Enterprise-Grade Security & Audit Trail

Every verification is immutably logged on-chain, providing a tamper-proof audit trail for regulators. Built with OpenZeppelin standards and undergoes regular third-party audits.

Immutable
Audit Trail
Regular
Security Audits
Structured Roadmap

Phased Development & Delivery

A transparent, milestone-driven approach to building and launching your Decentralized Identity KYC Aggregator, from MVP to full-scale production.

Phase & DeliverablesDiscovery & MVP (4-6 Weeks)Core Development (6-8 Weeks)Launch & Scale (Ongoing)

Architecture & Smart Contracts

System design, DID schema, core smart contract suite

Full contract suite (registry, verification, revocation), on-chain testing

Deployment to mainnet, contract verification, upgradeability setup

KYC Provider Integration

1-2 primary provider integrations (e.g., Synaps, Fractal)

3-5 additional provider integrations, aggregation logic

Custom provider onboarding, continuous integration support

Compliance & Privacy Engine

Basic ZK-proof integration for selective disclosure

Advanced privacy features (ZK-SNARKs), regulatory rule engine

Audit trail, compliance reporting dashboard, jurisdiction modules

API & SDK Development

Core REST API endpoints, basic TypeScript SDK

Full-featured API, multi-language SDKs (JS, Python, Go)

High-availability API gateway, developer portal, rate limiting

Frontend / Admin Dashboard

MVP dashboard for credential issuance and verification

Full admin console with analytics, user management, and logs

White-label dashboard, custom UI/UX, advanced analytics suite

Security & Auditing

Internal code review, basic threat modeling

Full smart contract audit by a third-party firm

Continuous monitoring, bug bounty program setup, penetration testing

Deployment & Go-Live

Testnet deployment, initial user testing

Staging environment, load testing, security audit remediation

Mainnet launch, production monitoring, 99.9% uptime SLA

Support & Maintenance

Email support during development

6 months of post-launch support & updates

Optional annual Enterprise SLA with 24/7 monitoring & 4h response

how-we-deliver
END-TO-END DELIVERY

Our Development & Compliance Methodology

We combine deep blockchain engineering with rigorous compliance frameworks to deliver secure, scalable, and regulator-ready DID KYC solutions. Our proven methodology ensures rapid deployment without compromising on security or user privacy.

02

Secure Multi-Protocol Integration

Seamlessly connect to leading DID standards (W3C Verifiable Credentials, DIF Sidetree) and KYC providers. Our modular architecture abstracts complexity, providing a single, unified API for identity verification across chains and jurisdictions.

W3C VC
Standard
DIF
Compatible
05

Automated Audit Trail & Reporting

Built-in immutable logging of all verification events and credential issuances for regulator reporting. Our systems generate compliant audit trails that satisfy financial authority requirements for transaction monitoring.

Immutable
Logs
Automated
Reporting
06

Rapid Deployment Framework

Leverage our pre-built modules and deployment pipelines to go from specification to production in weeks, not months. We provide full environment setup, testing, and documentation for your engineering team.

< 4 weeks
To MVP
Full Docs
Included
Infrastructure Decision Matrix

Build vs. Buy: KYC for Cross-Border Payments

A detailed comparison of the time, cost, and risk involved in developing a compliant KYC system in-house versus leveraging Chainscore's DID KYC Aggregator.

FactorBuild In-HouseChainscore DID KYC Aggregator

Time to Launch

6-12 months

4-8 weeks

Initial Development Cost

$250K - $600K+

$75K - $200K

Ongoing Compliance & Maintenance

$100K+ annually

Included in SLA

Covered Jurisdictions & Regulations

Requires legal team per region

Pre-integrated for 50+ countries

Identity Provider Integrations

Manual integration per vendor (3-6 months)

Single API for 20+ global providers

Audit & Security Posture

High risk (unaudited, custom code)

Low risk (audited, battle-tested modules)

Developer Resources Required

4-6 senior engineers + legal/compliance

1-2 integration engineers

Uptime & Support SLA

Your responsibility

99.9% uptime with 24/7 support

Total Cost of Ownership (Year 1)

$350K - $700K+

$75K - $200K

Decentralized Identity & KYC

Frequently Asked Questions

Get clear answers on how our DID-based KYC aggregator service works, from integration to compliance.

Our aggregator acts as a middleware layer. You integrate our SDK or API to present KYC options to users. They complete verification with a provider of their choice (e.g., Persona, Veriff, Onfido). We then issue a reusable, privacy-preserving Verifiable Credential (VC) anchored to a user-controlled DID. Your application simply checks the VC's validity on-chain, eliminating redundant checks and data silos. This typically adds 2-3 steps to your existing flow.

ENQUIRY

Get In Touch
today.

Our experts will offer a free quote and a 30min call to discuss your project.

NDA Protected
24h Response
Directly to Engineering Team
10+
Protocols Shipped
$20M+
TVL Overall
NDA Protected Directly to Engineering Team