KYC/AML Compliance for Blockchain Projects: Technical Implementation Guide
Muhammad Zain
TelGates Team
Regulatory compliance is no longer optional for blockchain projects. Here's how to implement KYC/AML without sacrificing user experience.
The Compliance Landscape
Key regulations: - FATF Travel Rule — Share originator/beneficiary info for transfers >$3,000 - EU MiCA — Comprehensive crypto regulation effective 2025 - US FinCEN — BSA compliance, SAR filing requirements - UAE VARA — Dubai's Virtual Asset Regulatory Authority
Technical Implementation
1. Smart Contract Level (On-Chain) - Whitelist mapping: `mapping(address => bool) public isVerified` - Transfer restrictions: require verified status for token transfers - Compliance attestation storage on-chain
2. Backend Level (Off-Chain) - Document verification via OCR + AI extraction - Sanctions screening against OFAC, EU, UN lists - Risk scoring based on transaction patterns - Ongoing monitoring with automated SAR generation
3. Third-Party Providers - Chainalysis for blockchain analytics - Sumsub or Jumio for identity verification - Elliptic for transaction monitoring
Development Costs
- Basic KYC integration: $15,000-30,000
- Full KYC/AML system: $50,000-100,000
- Enterprise compliance platform: $100,000-250,000
TelGates builds compliant blockchain applications that meet regulatory requirements across multiple jurisdictions.