TRON Approval Checker is a free browser tool that lists TRC20 token spenders and allowances on the TRON blockchain from a pasted public T-address, showing unlimited approvals and risk flags before a wallet drain.
What is TRON Approval Checker?
It is a read-only web application at revokeusdt.org. It accepts a TRON address (starting with T) and outputs a table of TRC20 approvals: token, spender, remaining allowance, unlimited status, and risk tags. It uses TronScan's public approve index API. It is an independent desk, not affiliated with TRON Foundation, Tether, SunSwap, or TronLink.
Key Features
- Paste-only check — Enter a T-address; the tool reads public TRC20 allowances from TronScan's approve list API. No seed phrase or private key is ever requested.
- Unlimited flag — Distinctly marks approvals with the max uint256 (infinite) allowance, which is the pattern drainers use.
- Risk spender tags — Flags risky spenders using TronScan security auth data, distinguishing named DEX routers from unknown addresses.
- Free and fast — The basic check is free and returns results in under 2 seconds. 28k+ checks this month (as stated on the page).
- Deep scan option — Optional read-only deep confirmation for large or first-time USDT checks at a network fee of approximately 2–3 TRX.
- Does not request signing — The tool never asks you to approve a spender or send a transaction; it only lists allowances.
- Guides and vocabulary — Includes an extensive library covering allowances, spenders, unlimited approval, revoking, TronLink, and phishing.
Who is it for?
- TronLink users — Check which dapps or routers have approval to spend your TRC20 tokens before interacting with a new DeFi app.
- Wallet holders after a phishing scare — Verify if a fake dapp left an unlimited USDT approval on your address.
- DeFi participants — Review and manage allowances across SunSwap, JustLend, and other DEXs before approving new contracts.
- Security-conscious users — Perform a quick audit of existing approvals using a free read-only tool without connecting a wallet.
Pros and cons
Pros:
- Free and read-only; does not require a seed phrase or connecting a wallet.
- Identifies unlimited allowances and risk spenders from public chain data.
- Includes a deep scan for high-value USDT checks at a nominal network fee.
Cons:
- It only lists approvals; it cannot revoke them for you — you must set the allowance to zero yourself.
- It is not affiliated with official TRON entities, so treat it as an independent tool and verify against TronScan.
- An empty approval list does not guarantee wallet safety — it only reflects current TRC20 allowances.
FAQ
Do I need a seed phrase to check approvals?
No. The free screen uses a pasted public T-address. The optional deep scan is read-only and never asks for a seed or private key.
Does this site revoke allowances for me?
No. It lists spenders and remaining amounts. Revoking requires a new signed transaction from your wallet, typically approve(0). Fake revoke dapps ask for a seed or a second unlimited approve — this desk only lists.
What API does the free checker use?
It reads TronScan's public approval index endpoints: GET /api/account/approve/list?address=&limit=50&start=0&type=token, plus /api/security/auth/data for risk tags.
Is TRON Approval Checker run by the TRON Foundation?
No. revokeusdt.org is an independent screening desk and is not affiliated with TRON Foundation, Tether, SunSwap, or TronLink.
What is the difference between capped and unlimited allowances?
A capped allowance expires after the spender pulls that amount. An unlimited (max uint256) allowance stays until you revoke. DEX routers often ask for unlimited; phishing sites always do.
