Start a payout

Where this sits

Send from the merchant payout balance to an address.

POST/api/public/withdraw/apply

Content-Type: application/json

Request parameters

Field	Type	Required	Sign	Example	Description
`appId`	string(12-16)	Yes	Yes	`k-mch8x2k1p4q9`	APP ID
`merchantOrderNo`	string(14-32)	Yes	Yes	`WD-20260822-0001`	Merchant order no, unique on the merchant side
`network`	string	Yes	Yes	`TRC`	Network, see Parameter lookup
`asset`	string	Yes	Yes	`USDT`	Payout asset; required and must be included in the signature. TRC supports USDT only. See Parameter lookup
`cryptoAmount`	string	Yes	Yes	`45.6`	Payout amount; see asset for the coin
`toAddress`	string(32-64)	Yes	Yes	`TExampleReceiverAddressxxxxxxxxxxxxx`	Destination
`notifyUrl`	string	Yes	Yes	`https://merchant.example.com/ucashier/notify`	Callback URL
`attach`	string	No	No	—	Attach
`signature`	string(32)	Yes	No	`482A151DDB90D66BE03F2983E79854F5`	Signature

Response data fields

Field	Type	Description
`appId`	string	APP ID
`orderNo`	string	Platform payout no
`merchantOrderNo`	string	Merchant order no
`asset`	string	Asset actually sent; see Parameter lookup
`cryptoAmount`	string	Payout amount
`status`	string	Status; see Parameter lookup
`createdAt`	string	Created at, Unix seconds

Request example

{
  "appId": "k-mch8x2k1p4q9",
  "merchantOrderNo": "WD-20260822-0001",
  "network": "TRC",
  "asset": "USDT",
  "cryptoAmount": "45.6",
  "toAddress": "TExampleReceiverAddressxxxxxxxxxxxxx",
  "notifyUrl": "https://merchant.example.com/ucashier/notify",
  "attach": "custom",
  "signature": "482A151DDB90D66BE03F2983E79854F5"
}

Response example

{
  "code": "100000",
  "message": "Success",
  "data": {
    "appId": "k-mch8x2k1p4q9",
    "orderNo": "U260830162530123456",
    "merchantOrderNo": "WD-20260822-0001",
    "asset": "USDT",
    "cryptoAmount": "45.6",
    "status": "pending",
    "createdAt": "1724371200"
  },
  "requestId": "..."
}