USD and USDT pricing
Customer-facing billing is presented in USD or USDT only, with wallet settlement and usage ledger evidence.
Customer display currency
Public pages and customer console surfaces show USD or USDT only. Internal cost basis and exchange calculations stay in finance and audit tools.
Wallet settlement
OKX Wallet USDT top-ups are credited only after verified chain evidence, confirmations, and ledger posting.
Usage evidence
Every billable API call should connect to tenant key, model, tokens or usage units, wallet debit, retry or fallback status, and risk evidence when applicable.