post https://api.vault.sandbox.testessential.net/v5/kyc/start
This endpoint initiates the KYC verification process via SumSub. It checks if the user is registered in the SumSub system, and if not, it registers the user. After registration or if the user already exists, a token is generated to initialize the SDK.
Important Notice
Starting from December 23, we are using SumSub for the KYC process.