Address subscriptions
Add, query and stop USDT address subscriptions. Track incoming and outgoing transfers without sharing wallet private keys.
WalletShield / Webhook
Monitor onchain data for your registered wallets and notify your system when their funds change.
Receive USDT transfers in and out, detection and finality events at your HTTPS endpoint. Your system keeps control of its business decisions.
API access is provisioned separately. PRO/MAX member monitoring slots do not include external Webhook API access.
What you can do
Detection and final confirmation
Opt in to detected events, then receive finalized events linked by activity ID. Your application verifies incoming payments and matches orders before fulfillment.
Verifiable delivery
Signed HTTPS callbacks, delivery history, retries and event queries support integration. Handle duplicates, out-of-order events and reorg reversals.
Ethereum / TRON / BSC
Three chains. Mainnets and testnets.
| Network | Mainnet asset | Test network |
|---|---|---|
| Ethereum | USDT | Sepolia · TEST-USDT |
| TRON | USDT | Nile · TEST-USDT |
| BNB Smart Chain | Binance-Peg USDT | BSC Testnet · TEST-USDT |
Three mainnets and three testnets, using designated USDT contracts. BSC mainnet uses Binance-Peg USDT. Test assets are separate; network availability and enabled assets must be checked before use. USDC is not currently supported.
From testing to production
- Request an API Key and register a public HTTPS callback. Keep API credentials on your server.
- Create subscriptions for authorized networks; wait for active status and a valid start block.
- Test signatures, retries, deduplication and state ordering, then verify a real designated test-USDT transfer before mainnet acceptance.
Questions before you start
Can this mark an order paid?
Webhook reports chain activity. Only your application can verify the transaction and the matching order. Outgoing transfers and net-balance reconciliation are not payment evidence.
What happens if a notification fails?
Delivery failures are recorded and retried under the API policy. Delays beyond the 60-minute automatic-notification window move to manual handling; normal finality waiting is excluded. Query events and deliveries, and handle duplicates and reversals.
How do I get access and pricing?
Contact us for API access and agreed pricing. No wallet private key is required. Network availability and permissions are reported by the API; a public API-key management dashboard is not currently provided.