latestOpenAPI 3.1.02026-08-108094177.6 KB
087dcf516ce2
External Wallet Access KYC
Check KYC data completeness for an external wallet user
Pure read of the last handoff attempt's verdict, mirroring the Managed Custody check endpoint; an incomplete session returns code 20004 with missingFields. Use it as a fallback to the fma.kyc.reuse_check.result webhook while the user remediates in your Sumsub workflow.
post/api/v1/sumsub/kyc-check
Headers
X-Api-Signaturestring required
Partner Auth EIP-191 signature over the canonical message plus the deadline.
X-Api-Deadlinestring required
Unix timestamp in seconds after which the signature is no longer valid.
X-Api-PublicKeystring required
Partner public key used to verify the signature.
Request body
Response
Business result envelope. code 0 means success; business rejections return HTTP 200 with a non-zero code.