PayMyUSDT Gateway

💳

Payment Intent

Fiat ↔ Crypto

Transaction Type *

Crypto *

Network *

Fiat Currency *

Amount *

USD

Payment Method (optional)

Merchant Reference *

ℹ️

How It Works

1

Create Intent

Click the button — our server calls AmoPay API and receives a secure session URL.

2

Open Cashier

A popup shows a button to open AmoPay's payment page with your session.

3

Complete Payment

Fill in payment details on AmoPay's secure page.

4

Receive Webhook

AmoPay POSTs a signed notification to your callback URL.

Endpoints

Webhook Callback URL

https://paymyudst.com/index.php?action=webhook

Redirect URL

https://paymyudst.com/index.php?action=result

📊

Order Statuses

🔄 INITIALIZE Order created, awaiting user login

📋 CREATED User logged in, order created

⏳ PENDING Awaiting blockchain confirmation

✅ COMPLETED Payment successful

❌ FAILED Payment failed

🔍

Query Order

Check any order by ID

📄

Response Fields

Field	Description
`status`	Current order status
`txStatus`	Blockchain status (internal)
`side`	BUY or SELL
`amount`	Fiat amount
`fiatCurrency`	Fiat code
`cryptoQuantity`	Crypto received
`cryptoCurrency`	Crypto type
`network`	Blockchain network
`orderNo`	Unique order ID
`networkFee`	Network fee
`processingFee`	Processing fee
`txHash`	Blockchain hash
`paymentTime`	Payment time
`creationTime`	Created time

🔔

Webhook Setup

Real-time notifications

ℹ️

AmoPay POSTs a signed JWT to your callback URL on each status change. Register this URL in your AmoPay merchant portal.

Endpoint

POST https://paymyudst.com/index.php?action=webhook

Verification Steps

1️⃣ Extract JWT from: Authorization: Bearer <token>

2️⃣ Verify HMAC-SHA256 signature using your API Secret

3️⃣ Check iss === "AMOPAY"

4️⃣ Check aud === your Client ID

5️⃣ Check iat is within ±3 minutes

6️⃣ Process data object from JWT payload

7️⃣ Return HTTP 200 OK

📋

Webhook Logs

Last 20 received

📭

No webhooks received yet. Register your callback URL in the AmoPay merchant portal.

🗑️ Clear Logs