Pay with Cashier (Website Browser) - On-Chain

Accept On-Chain cashier on your website by presenting payment method to the shopper.

Step 0. Authentication

How to obtain access token Authentication Reference

Step 1. Initialize a Payment Intent

POST /mch-api/v1/pa/payment_intents/create

• Example Request

{
  "amount": "20",
  "currency": "USDT",
  "merchant_order_id": "P9297895081906",
  "payment_method": {
    "type": "on_chain",
    "on_chain": {
      "chain": [
        "Ethereum",
        "TRON",
        "BSC"
      ],
      "is_fee_paid_by_user": true
    }
  },
  "description": "Online Payment",
  "expire_time": 1800,
  "notify_url": "https://put_your_site_here/example_url"
}

• Request

REQUEST BODY	Details	Type	Required	Example
amount	Payment amount. This is the order amount you would like to charge your customer	string(32)	required
currency	Amount currency	string(3)	required	USD
merchant_order_id	The order ID created in merchant's order system that corresponds to this PaymentIntent. Maximum length is 32.	string(32)	required
description	The description of the order	string	required
notify_url	The URL that is used to receive the payment result notification from CBTIS	string	optional
payment_method		object	required
- type	Specific this payment channel (on_chain)	string	required	on_ramp
- on_chain		object	required
- - chain	Select the payment network supported by this payment. If left blank, all payment networks will be supported by default. Please note that different payment networks may charge different fees.	array	optional (default All chain)
- - is_fee_paid_by_user	Set this as true if you're using fee paid by user flow.	boolean	optional (default false)

• Example Response

{
  "code": 0,
  "data": {
    "amount": "20",
    "create_time": "2025-08-18T03:23:46+08:00",
    "currency": "USD",
    "merchant_order_id": "P9297895081906",
    "next_action": {
      "redirect_url": "https://api-live.aiscpay.com/mch-api/v1/pa/redirect/ccb3af9e4bae114682958fb114e2069b29bceceb5c364024d7c5042b1f0782bc",
      "type": "redirect"
    },
    "order_id": "C96458626019020000",
    "status": "PENDING"
  },
  "message": "ok",
  "rid": "7fa547cb4c1e428fb996b2c31180dfa7"
}

You should redirect the shopper to the Alipay Plus cashier page with the next_action.url returned in the Payment response.

Step 2. Get payment notify

Once you fill in the notify_url field when creating an order, after the user completes the payment, our system will prompt you with information about the user's completed payment.

How to verify our notify message Webhook Verify Reference

• Example Webhook

{
  "notify_type": "payment_success",
  "data": {
    "order_id": "C96245645019020000",
    "merchant_order_id": "P9297895081903",
    "order_amount": "20",
    "order_currency": "USD",
    "settle_amount": "18.0966",
    "settle_currency": "USDT",
    "create_time": "2025-08-18T03:23:46+08:00",
    "pay_time": "2025-08-18T03:23:46+08:00"
  }
}

Step 3. Retrieve a payment

Retrieve a Refund by ID.

POST /mch-api/v1/pa/payment_intents/query

• Example Request

{
  "order_id": "P991289984923795789123",
  "merchant_order_id": "P9297895081903"
}

• Request

REQUEST BODY	Details	Type	Required	Example
order_id	Platform order id from payment request.	string(32)	conditional (required if merchant_order_id is empty)
merchant_order_id	Merchant order id from your creation of payment.	string(32)	conditional (required if order_id is empty)

• Example Response

{
  "code": 0,
  "data": {
    "amount": "20",
    "create_time": "2025-08-18T03:23:46+08:00",
    "currency": "USD",
    "merchant_order_id": "P9297895081906",
    "order_id": "C96458626019020000",
    "status": "PENDING"
  },
  "message": "ok",
  "rid": "863b73d9d0db4b35a1827c6a4396e988"
}

• Explain of status

STATUS CODE	Details
PENDING	The Payment is pending the final result from the provider. No further action is required.
SUCCESS	The Payment has succeeded. The payment transaction is complete.
EXPIRED	Payment canceled or timeout, user has not completed the payment and the order has been closed.
FAILED	Payment failed. You can contact our saler to the detail reason.