Sumsub Token Sharing with Coinflow
Overview
If you already use Sumsub for KYC verification, you can share that verified data directly with Coinflow. This eliminates duplicate verification for your users and provides a seamless payout experience.
This integration uses Sumsub’s reusable KYC feature, which requires a tri-party data sharing agreement between you, Coinflow, and Sumsub.
Learn more about Sumsub’s reusable KYC
Who Should Use This Method
Sumsub Token Sharing is ideal for merchants who:
- Already have an active Sumsub account
- Have users verified through Sumsub
- Want to avoid requiring users to complete KYC again
- Want to leverage existing KYC infrastructure
Setup Process
Step 1: Contact Coinflow
Before setting up the tri-party agreement, reach out to Coinflow with:
- Your Sumsub client ID
- Request for Coinflow’s Sumsub client ID (needed for the agreement)
Step 2: Sign Tri-Party Agreement
Work with Sumsub to establish the data sharing agreement. This legal agreement authorizes:
- Coinflow to access KYC data from your Sumsub account
- Reuse of verified user data for payout processing
- Data sharing between all three parties
Step 3: Integrate the APIs
Once the agreement is in place, implement the integration:
- Generate Share Token: Call Sumsub’s Generate Share Token endpoint for each verified user
- Register with Coinflow: Call Coinflow’s Register User Via Share Token endpoint to share the KYC data
Important for UI Integration: If you’re using Coinflow’s prebuilt UI components (e.g.,
CoinflowWithdraw), call the Register User Via Share Token endpoint before rendering the component to ensure the verification record exists.

