FAQ
General
What tokens does the Energy-Free Node support?
Any TRC20 token — USDT, USDC, WTRX, SUN, JST, BTT, and every other TRC20 token on the TRON network. It also handles smart contract interactions that require energy (DeFi swaps, NFT mints, etc.).
Simple TRX transfers only need bandwidth (not energy), so the node handles those normally at no extra cost.
How is this different from renting energy manually?
Manual energy rental means you estimate how much you need, pay upfront, and hope you use it before it expires. If you over-rent, you waste money. If you under-rent, your transaction burns TRX anyway.
The Energy-Free Node flips this:
- No estimation — it detects the exact energy needed per transaction
- No upfront payment — you pay only when you send
- No expiry — energy is purchased just-in-time, used immediately
- No manual steps — it happens transparently, every time
Can anyone else build this?
TRONAgg is the only platform offering automatic energy provisioning as a hosted node. No other energy provider has built this infrastructure. The node is powered by TRONAgg's aggregation engine that compares prices across 10+ verified providers in real time.
Is there a subscription fee?
No. No monthly fee, no minimum commitment, no setup cost. You pay only for energy when you actually send transactions.
Pricing
How much does a transfer cost?
It depends on the transaction type and current energy market rates:
| Transaction | Energy needed | Approximate cost |
|---|---|---|
| USDT transfer (existing holder) | ~65,000 | ~2 TRX |
| USDT transfer (first-time recipient) | ~135,000 | ~4 TRX |
| USDC transfer | ~65,000 | ~2 TRX |
| Other TRC20 tokens | ~30,000–65,000 | ~1–2 TRX |
| DEX swap | ~100,000–300,000 | ~3–10 TRX |
For comparison, the same USDT transfer without energy burns ~6–13 TRX directly from your wallet. The savings are immediate.
Exact prices fluctuate with the energy market. Check your dashboard for current rates.
How does the node know to use 65,000 or 135,000 energy?
It checks the recipient's token balance on-chain before broadcasting. If the recipient has never held the token before, the transfer costs more energy (135,000 vs 65,000). The node detects this automatically — you don't need to think about it.
What happens if my TRONAgg balance runs out?
Your transaction still goes through. It's broadcast to the TRON network normally, just without pre-purchased energy. The network will burn TRX from your wallet to cover the cost — the same as if you were using a default node.
No transaction is ever lost or blocked because of an empty TRONAgg balance. You just pay the higher burn rate until you top up.
Keep your TRONAgg balance funded to avoid the higher burn rate. The dashboard shows your balance and recent usage so you can plan top-ups.
Setup
Which wallets work with the Energy-Free Node?
Any wallet or app that lets you set a custom TRON full node URL. This includes:
| Wallet | Supported | Guide |
|---|---|---|
| TronLink (browser + mobile) | Yes | Setup guide |
| Trust Wallet | Yes | Setup guide |
| SafePal | Yes | Generic guide |
| TokenPocket | Yes | Generic guide |
| imToken | Yes | Generic guide |
| Klever | Yes | Generic guide |
| Ledger Live | Not directly | Use via TronLink with Ledger hardware signing |
Can I use one node URL across multiple wallets?
Yes. Your node URL is not tied to a specific wallet or address. Use it on your phone, your browser extension, and your backend — all at once. Everything charges to the same TRONAgg account.
If you want to limit who can use it, enable address whitelisting.
Can I use the Energy-Free Node in my app or bot?
Yes — and it's a one-line change. See the App Integration guide for code samples in JavaScript (tronweb.js) and Python (tronpy). Any language that speaks TRON HTTP API can use it.
Troubleshooting
My balance doesn't load after switching the node
- Check the URL — Make sure you copied the entire URL including the secret key, with no extra spaces
- Test it in a browser — Visit
https://node.tronagg.ai/YOUR_SECRET_KEY/wallet/getnowblock. If you see JSON with block data, the node is working. - Restart your wallet — Close and reopen the app after changing node settings
- Check your connection — The node requires internet access
My transaction failed
Common causes:
- Not enough TRX in your wallet — You still need a small amount of TRX for bandwidth (~0.3 TRX per transaction)
- Empty TRONAgg balance — Energy wasn't delegated, so TRX was burned from your wallet. If your wallet TRX was also low, the transaction may have failed.
- Contract error — The failure might be unrelated to energy (wrong recipient, insufficient token balance, contract reverted). Check the transaction on Tronscan for details.
Energy wasn't delegated for my transaction
Check these in order:
- TRONAgg balance — Was it sufficient at the time of the transaction?
- Whitelist — Is whitelisting enabled, and is your address on the list?
- Transaction type — Simple TRX transfers don't need energy, so none is delegated
Your dashboard activity log shows exactly what happened for each transaction.
I want to switch back to the default node
Change the node URL in your wallet settings back to the default. See the wallet guides for specific steps:
Your funds and tokens are on the blockchain — switching nodes never affects them.