Sumsub API

Sumsub's REST API provides programmatic access to a full-stack verification platform spanning identity verification (KYC), business verification (KYB), AML screening, transaction monitoring, Travel Rule compliance, fraud and device intelligence, and case management. Authentication uses App Tokens via the X-App-Token header against api.sumsub.com, with JSON responses and webhooks (including applicantReviewed) for asynchronous verification outcomes.