post
https://api.sandbox.com/v1/fiat-accounts
Registers a new fiat currency bank account for receiving or sending funds. Provide complete bank details including account number, routing number (or local equivalent like IBAN, CLABE, sort code), bank name, account holder name, currency, and account type (checking/savings). The account details are validated for format correctness and may undergo verification (micro-deposits or bank API checks) depending on the currency and region. Some accounts may require compliance verification or documentation before they can be used for transactions.