latestOpenAPI 3.1.02026-08-108094177.6 KB

087dcf516ce2

Managed Custody Mode

Set default card currency

Set the user's default card transaction currency. UR resolves the card's externalId from the authenticated user; the setting affects the default refund currency display and debit preference.

post/api/fma/v1/card-currency

Headers

X-Api-Signaturestring required

0x-prefixed 65-byte hex EIP-191 signature over the Partner Auth message. See the Signature and verify guide.

X-Api-Deadlinestring required

Unix seconds. UR rejects the request when the current time is past the deadline. Keep the validity window at or under 5 minutes.

X-Api-PublicKeystring required

0x-prefixed partner signer address registered with UR.

X-Ur-Idstring

Send at least one of X-Ur-Id or X-External-User-Id. When both are present, UR resolves the user by X-Ur-Id first.

X-External-User-Idstring

Send at least one of X-Ur-Id or X-External-User-Id. When both are present, UR resolves the user by X-Ur-Id first.

Request body

currencystring required

Target default transaction currency, such as USD, EUR, or CHF.

Response

Standard envelope. Business errors return HTTP 200 with a non-zero code.

codeinteger required

0 on success; non-zero business error code.

messagestring required

Human-readable explanation. May be empty on success.