v1

latestOpenAPI 3.1.02026-07-2411601020.7 KB

Request a swap quote

[Available in Production/Sandbox environment] Request a swap quote for the selected swap pair.

post/swap/quotes

Headers

X-XFERS-APP-API-KEYstring required

You can retrieve this from your Dashboard Developer Tools. Note: The X-XFERS-APP-API-KEY is a mandatory header for all authentication methods, including standard API key usage and HTTP Request Signing mode.

X-PUBLIC-KEY-IDstring

The Key ID, can be retrieved from your StraitsX Dashboard. Note: This header attribute is required when HTTP Request Signing is enabled for your account.

X-TIMESTAMPstring

Current Unix epoch time in seconds. Must be within ±300 seconds of server time. Note: This header attribute is required when HTTP Request Signing is enabled for your account.

X-NONCEstring

A unique UUID string per request, used for replay protection. Must not be reused within the timestamp window. Regex: /\A[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}\z/i Note: This header attribute is required when HTTP Request Signing is enabled for your account.

X-SIGNATUREstring

Base64-encoded digital signature of the canonical request string. Note: This header attribute is required when HTTP Request Signing is enabled for your account.

Request body

Response

200

Example response

{
  "data": {
    "id": "8ab9745f-f330-4a99-a7da-35d695dceb14",
    "type": "swapQuote",
    "attributes": {
      "swapPair": "XSGDXUSD",
      "sourceCurrency": "XSGD",
      "targetCurrency": "XUSD",
      "totalSourceCurrencyAmount": "12.93",
      "sourceCurrencyAmount": "12.93",
      "targetCurrencyAmount": "10.0",
      "fixedSide": "target",
      "rate": "0.7739",
      "expiresAt": "2025-06-11T11:27:35.487+08:00",
      "createdAt": "2025-06-11T11:22:35.531+08:00"
    }
  }
}