> For the complete documentation index, see [llms.txt](https://docs.ur.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ur.app/api-reference/kyc-and-kyb.md).

# KYC and KYB

- [Managed Custody SDK KYC](https://docs.ur.app/api-reference/kyc-and-kyb/managed-custody-sdk-kyc.md): Onboard users with KYC completed on the user's device via the UR-issued Sumsub access token.
- [Shared-token KYC reuse](https://docs.ur.app/api-reference/kyc-and-kyb/shared-token-kyc-reuse.md): Onboard users whose KYC your platform already completed in its own Sumsub tenant, by sharing the verified applicant with UR through a Sumsub share token. UR copies the applicant, validates the data, a
- [Retry KYC](https://docs.ur.app/api-reference/kyc-and-kyb/retry-kyc.md): Handle a UR-initiated request for a user to redo part or all of their KYC. UR issues a retry directive, notifies you over webhook, and your platform claims a new session and drives the user through th


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