← All posts

How to get instant alerts for TRON USDT (TRC-20) transactions

USDT on TRON (TRC-20) is the highest-volume stablecoin in the world — it’s how a huge share of crypto value actually moves. If you run a desk, a treasury, or a product that touches TRON, you usually want to know the moment a specific wallet sends or receives USDT. Here’s how to set that up in a few minutes.

Why explorers aren’t enough

Block explorers like Tronscan are great for looking up a transaction after the fact. They don’t push anything to you. The common workarounds — refreshing a page, or polling an API on a timer — are slow, miss fast-moving activity, and waste rate limits. You want a system that watches the chain continuously and notifies you the instant something happens.

How SCMon does it

SCMon runs its own TRON indexer that records every confirmed TRC-20 transfer. You register a watch — an address + token + chain — and when a confirmed transfer touches that address, we evaluate your rule and deliver an alert. You never run a node, and SCMon is watch-only: it reads public on-chain data and never touches your keys.

Alerts fire only after 25 confirmations on TRON, so they’re safe against chain reorganizations — you won’t get pinged about a transfer that later disappears.

Set up a TRON USDT watch

Point a watch at the wallet, choose USDT on tron, and send it to a webhook:

curl -X POST https://api.scmon.io/v1/watches \
  -H 'authorization: Bearer scmon_…' \
  -H 'content-type: application/json' \
  -d '{
    "chain": "tron",
    "token": "USDT-TRC20-contract",
    "address": "TYourTronWallet…",
    "rule": { "direction": "in", "minAmount": "10000000000" },
    "channel_type": "telegram",
    "channel_target": "123456789"
  }'

That rule means only inbound USDT of 10,000 or more. Amounts are raw base units — USDT on TRON has 6 decimals, so 10,000 USDT = 10000000000. See Rules for the full set of filters (direction, min/max, counterparty allow/deny).

What you get

Every alert carries the direction, counterparty, raw amount, transaction hash and block, so you can reconcile it against your own systems. Prefer no code? Point the same watch at Telegram instead of a webhook and you’ll get a message in your chat.

Watching TRON USDT well is mostly about cutting noise down to the transfers you actually care about — and getting them fast. That’s exactly what a watch + rule gives you.

Start watching a wallet in minutes

Free tier to try it. No card — top up in USDT or USDC when you scale.

Create your account →