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Authentication

KYC endpoints use the same Ed25519 signed-API scheme as the MID endpoints — Partner-App-Key, X-HSPay-Signature, and X-HSPay-Timestamp headers. See Request Signing.

Fields

Some fields are required for your account. Holdstation configures the required set per partner; contact us to confirm which fields apply to you. A create or update is rejected with MISSING_REQUIRED_FIELD if a required field is empty (or, for id_type / sex, left unspecified / 0).

Endpoints

The request body is the same for create and update: