latestOpenAPI 3.1.02026-08-108094177.6 KB

087dcf516ce2

External Wallet Access Mode

Set default transaction currency

Sets the default transaction currency for the user's card. Use the stable externalId returned by Get card info as cardExternalId.

post/api/v2/card-currency

Headers

tokenIdstring required

The user's URID (NFT token id).

networkstring required

Network identifier: 5000 for mainnet, 5003 for testnet.

signstring required

Signature generated by the user's wallet key (EIP-191).

hashstring required

SHA3/Keccak256 hash of the original request payload.

deadlinestring required

Signature expiry: server timestamp plus a validity window (max 20 minutes).

Request body

cardExternalIdstring required

Stable card external ID from GET /api/v2/card (result.externalId).

currencystring required

Default transaction currency, such as USD, EUR, or CHF.

Response

Response envelope. For the user API, retCode 0 means success; for the partner API, code 0 means success. Business rejections return HTTP 200 with a non-zero code.

retCodeinteger required

0 on success; non-zero indicates failure.

retMsgstring required

Human-readable message; error details when retCode is non-zero.

{"stackTrail":"components:schemas:EwaEnvelope:properties:result","oasType":"schema","type":"unknown","description":"Business payload. Shape depends on the endpoint; some endpoints return it as a JSON-encoded string."}

timeNowinteger

Server timestamp in milliseconds.