tariff · standard 33 sun / unit 1 transfer = 2.145000 trx next change --:--:-- get /v1/tariff · snapshot 2026-08-22 · not live

“Someone forgot to order energy — the transfer burned 13 TRX.”

Energy that refills itself

Name a wallet and a daily budget. After every USDT transfer the wallet is topped back up to full energy — no orders, no schedules, no one to forget.

The whole rule
{
  "address": "TN3W4H6rK2ce4vX9YnFQHwKENnHjoxb3m9",
  "daily_budget_trx": "20.000000"
}
Two fields. Everything else is automatic.

How it works — five points, no other conditions

01 Always the full refill Every top-up brings the wallet to ~131,000 energy — enough for any next transfer, including one to an address that has never held USDT.
02 Two rates, chosen for you The previous transfer used ~65,000? The top-up bills at single. It used ~131,000? Double. The very first top-up of a rule is double.
03 Charged by the chain, not by a report A top-up is billed only when the energy is visible on the TRON network. No schedule-based charges, no supplier say-so.
04 Idle is almost free No transfers — no energy spent — no top-ups. There is no subscription fee and no charge for holding a rule.
05 You just send USDT No levels, no schedules, no orders per transfer. The wallet keeps itself ready.
Rates right now · GET /v1/tariff
single 2.115000 TRX
double 4.079700 TRX
See all prices →

What the rates have been doing

top-ups · trx per top-up single double
4.000000 trx 3.000000 trx 2.000000 trx
get /v1/tariff/history

Top-up rates are a separate product from orders: they do not follow the zone schedule and move on their own. No forecast is drawn for them — a dashed line here would read as a promise. You are charged the rate in force when the top-up is recognised on-chain.

The budget is a hard ceiling

The daily budget is reserved from your available credits at the start of each UTC day and is the most a rule can spend that day. Not a target — a ceiling.

Budget exhausted? Top-ups stop until the next UTC day. You get an event; the rule stays active. Credits too low to reserve a new day? The rule pauses and stays paused — we never quietly resume spending. Mid-day edits count what is already spent: raising the budget adds the difference, never a second budget. Every top-up shows as an event and as a ledger charge — nothing moves without a line you can read.
A budget day · UTC · example resets 00:00
6.194700 of 20.000000 TRX
09:13 · top-up · single 2.115000
14:41 · top-up · double 4.079700
spent_today_trx · maintenance.topup events · GET /v1/ledger

One call, and the wallet keeps itself ready

One active rule per address. Deleting a rule stops it and releases the rest of today's reservation; the history stays in your ledger.

curl -X POST https://api.nrg.market/v1/auto-refill-rules \
  -H "Authorization: Bearer $KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "address": "TN3W4H6rK2ce4vX9YnFQHwKENnHjoxb3m9",
    "daily_budget_trx": "20.000000"
  }'

Your first transfer — five minutes after sign-up

No subscription. No minimum volume. Credits are spent only on what is delivered. Create an account