Add Funds to Cards Sub-Wallet

post

https://api-sandbox.straitsx.com/v1/sub-wallets/cards-settlement/transfers

[Available in Production/Sandbox environment] Transfer funds from the merchant's main wallet to their Cards sub-wallet. Supports same-currency transfers and fiat-to-stablecoin 1:1 conversions.

Recent Requests

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Note:
Transfers are one-way only (main wallet → sub-wallet). Reverse transfers are not supported via this endpoint.

Supported Transfer Pairs:

Source (walletSource)	Destination (currency)	Type	Rate
xsgd	xsgd	Same currency	1:1
usdc	usdc	Same currency	1:1
xusd	xusd	Same currency	1:1
sgd	xsgd	Fiat → Stablecoin	1:1
usd	xusd	Fiat → Stablecoin	1:1

Body Params

data

object

Headers

X-XFERS-APP-API-KEY

string

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-ID

string

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-TIMESTAMP

string

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-NONCE

string

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-SIGNATURE

string

Base64-encoded digital signature of the canonical request string.

Note: This header attribute is required when HTTP Request Signing is enabled for your account.

Response

Note:

201201