Introduction to Tron API for USDT Transactions
The Tron blockchain provides powerful APIs for developers to monitor and verify cryptocurrency transactions. This guide focuses on querying the latest USDT (Tether) transactions using Tron's official API.
How Payment Verification Works
The payment verification process follows this workflow:
- A wallet address is assigned to the user
- The user makes a payment to the specified wallet
The system verifies the transaction by:
- Checking the wallet address for new successful transactions
- Immediately archiving verified payments
USDT Transaction Query Endpoint
Request Details
Endpoint URL: https://api.trongrid.io/v1/accounts/TYPrKF2sevXuE86Xo3Y2mhFnjseiUcybny/transactions/trc20?limit=100&contract_address=TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t
Method: GET
Required Parameters
| Parameter | Required | Type | Description |
|---|---|---|---|
| accounts | Yes | string | Wallet address to query |
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Sample Response
{
"data": [
{
"transaction_id": "d52cd9079cf82595dd507640b7b09e34d2dbb63a56b555355f5ef8984f1eb668",
"token_info": {
"symbol": "USDT",
"address": "TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t",
"decimals": 6,
"name": "Tether USD"
},
"block_timestamp": 1651903617000,
"from": "TYPrKF2sevXuE86Xo3Y2mhFnjseiUcybny",
"to": "TTRmEA73gpoxK2KRmhL7GtcYLh88VefYss",
"type": "Transfer",
"value": "15500000"
},
{
"transaction_id": "d2475ca51173ddcacc8f1ebd17f25ffd3f22c9c1b6761c3570010ef9586e9499",
"token_info": {
"symbol": "USDT",
"address": "TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t",
"decimals": 6,
"name": "Tether USD"
},
"block_timestamp": 1651903413000,
"from": "TTRmEA73gpoxK2KRmhL7GtcYLh88VefYss",
"to": "TYPrKF2sevXuE86Xo3Y2mhFnjseiUcybny",
"type": "Transfer",
"value": "15500000"
}
],
"success": true,
"meta": {
"at": 1652928398011,
"page_size": 3
}
}Key Features of Tron API
- Real-time transaction monitoring
- USDT-specific query support
- Detailed transaction information
- Reliable blockchain verification
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FAQ Section
How often should I query for new transactions?
For real-time applications, we recommend querying every 30-60 seconds. For less critical applications, every 5-10 minutes is sufficient.
What's the maximum limit for query results?
The API supports a maximum limit of 100 transactions per query. For larger datasets, implement pagination.
How do I verify a transaction is complete?
Check for the transaction in the blockchain with a confirmed status. Typically, TRON transactions confirm within seconds.
Can I query transactions for other TRC20 tokens?
Yes, simply replace the contract_address parameter with the desired TRC20 token contract address.
Is there rate limiting on the Tron API?
Yes, the public API has rate limits. For high-volume applications, consider using a dedicated node or API service.
Best Practices for Implementation
- Implement proper error handling for API requests
- Store transaction hashes to avoid duplicate processing
- Include timestamp verification to prevent replay attacks
- Consider using webhooks if available for real-time notifications
Conclusion
The Tron API provides a robust solution for verifying USDT transactions on the TRON blockchain. By implementing this API, developers can create reliable payment verification systems with minimal latency.