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Sumsub KYC Integration Kit

Reference implementation of identity and address verification flows.

Role: Developer

The challenge

Regulated onboarding needs identity checks that are easy to embed and audit, without leaking API secrets to the browser.

The solution

A React dashboard of demo flows backed by an Express server that signs Sumsub requests — covering the embedded SDK, a live-link redirect flow and a proof-of-address verification level.

What was built

• Server-side request signing — secrets stay on the server
• Embedded SDK and live-link redirect flows
• Proof-of-address verification level

Outcome

• A reusable starting point for KYC in brokerage products

Technology

React, Express, Node.js, Sumsub API

Case study by Shahfayaz Khan.