Real-Time Exchange Rate Query V2 - HaiPay

Description:

Query USD exchange rates for converting to other currencies, supporting both recharge and withdrawal rates, with the latest update time returned

URL: /common/quote/v3/exchange-rate Method: POST Request Parameters:

Parameter	Required	Type	Description
appId	Yes	String	Any valid appId, used for signature verification
sourceCurrency	Yes	String	Source currency, fixed as USD, currency codes in uppercase
targetCurrency	Yes	String	Target currency, currency codes in uppercase
transactionType	Yes	String	Rate type: `Recharge` for deposit rate, `Withdraw` for withdrawal rate
sign	Yes	String	Signature

Response Parameters:

Parameter	Type	Description
sourceCurrency	String	Source currency (USD)
targetCurrency	String	Target currency
exchangeRate	String	Exchange rate
updateTime	String	Last update time, format: yyyy-MM-dd HH:mm:ss
sign	String	Signature

HaiPay API Description and Common Rules

Last modified on August 26, 2026