MintExample
2,500,000 USDY
0x7099…79C8
2,500,000 USDY minted to 0x7099…79C8
Ethereum · USDYTransfer
Tokenized funds · Ethereum mainnet
USDY mint & redemption alerts: when Ondo issues or burns USDY
USDY is Ondo's tokenized note backed by short-term US Treasuries and bank deposits. Each new USDY issued and each one redeemed is an on-chain event. Open the ready-made rule and get an alert within seconds of confirmation.
Free on the Beta plan · within seconds of confirmation
Examples
What a USDY alert looks like
Each alert is one event from the token contract, with the amount and the transaction. The amounts are examples; no USD values.
BurnExample
1,500,000 USDY
0x3C44…93BC
1,500,000 USDY burned from 0x3C44…93BC
Ethereum · USDYTransfer
TransferExample
3,000,000 USDY
0x90F7…b906
3,000,000 USDY sent to 0x90F7…b906
Ethereum · USDYTransfer
Example alerts. Set up the rule and the real ones reach your chat within seconds of confirmation.
What changes on-chain
What the rules listen for
The contract from the issuer's own docs, and the events the ready-made rules catch. Ordinary transfers never reach you.
Ondo US Dollar Yield (USDY)
0x96f6ef951840721adbf46ac996b59e0235cb985c- New USDY issuedTransfer from 0x0
Ondo mints USDY to an onboarded investor: a Transfer from the zero address.
- USDY redeemedTransfer to 0x0
USDY burned on redemption: a Transfer to the zero address.
- Large USDY transferTransfer ≥ 1,000,000
Any USDY transfer of 1M or more.
From the issuer
What the issuer says
USDY is a tokenized note, secured by short-term US Treasuries, shares of the iShares Short Treasury Bond ETF or bank demand deposits, depending on when it was issued.
Source: Ondo docs: USDY · checked 2026-10-16
USDY is open to qualifying non-US individual and institutional investors.
Source: Ondo docs: USDY · checked 2026-10-16
Why set it up
Why people watch it
New money coming in
A mint is new USDY issued to an investor: money entering the note.
Redemptions too
A burn is USDY redeemed and taken out of circulation.
Moves of 1M or more
USDY can move between holders; the second rule flags the large moves.
Explained
How USDY is minted and burned
USDY is a standard upgradeable ERC-20 from Ondo's open-source contracts. A mint logs a Transfer from the zero address, a burn a Transfer to it. The ready-made rule listens for those two only, so ordinary transfers never reach you.
Explained
Large USDY transfers
The second rule sends an alert for every USDY transfer of 1M or more, wherever it goes. Change the minimum in the form if you want fewer or more alerts.
Ready-made rules
Set it up in one click
Open a rule: the contract, the events and the conditions are filled in. Change the minimum if you like, click Create, and the alerts reach your chat.
Ready-made rules
Every rule for this contract
Each one opens the add form on this contract with the events and conditions filled in. Sign in, pick your chat and click Create.
EverythingEverything on a contractEvery event a contract emits — full visibility for power users.
TemplateMints and burnsNew supply minted and supply burned on an ERC-20, such as stablecoin issuance.
TemplateWhale transfersOnly the big transfers of a popular token, above a size threshold.
TemplateToken transfersEvery transfer for an ERC-20 token you care about.
TemplateToken approvalsApprovals granted on a token — unlimited allowances are flagged as a drain risk.
Popular alertOndo USDY mints and burnsNew USDY issued, or redeemed and burned.
Popular alertOndo USDY large transfersEvery USDY transfer of 1M or more.
Pick one event
One event, nothing else
The form opens on this contract with that one event picked. Add a condition on its arguments if you like.
Pick one method
Calls to one method
An alert each time someone calls this method on the contract, with its arguments.
How it works
How the alert works
- 01
Open a ready-made rule: the contract, the events and the conditions are filled in.
- 02
Sign in, pick the chat the alerts go to and click Create.
- 03
Within seconds of confirmation, each matching event reaches you, with a link to the transaction.
FAQ
Frequently asked questions
Where does the data come from?
Every alert comes from the token contract's own event on Ethereum mainnet, read within seconds of confirmation, with a link to the transaction on Etherscan.
Does it cover rUSDY?
No. The rules watch the USDY token Ondo lists in its docs. rUSDY, the rebasing version, is a separate contract.
Can I set this alert for free?
Yes. The free Beta plan covers one contract and needs no card, so any one of these rules fits in it.
Do the alerts show prices or USD values?
No. Amounts are in token units, as the contract records them. Alerts carry no USD value and no price.
Is Alerts on Chain affiliated with Ondo?
No. Alerts on Chain is not affiliated with Ondo Finance. The rules read public on-chain data from the contract Ondo Finance publishes.
Does it cover other chains?
Ethereum mainnet only. Some of these tokens also live on other chains, each with its own contract; the rules here cover the Ethereum contract.
Keep exploring
Related pages
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Ondo OUSG, Ondo USDY and Circle USYC: new shares issued, redeemed and moved in size.
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OUSG mint & redemption alerts
New Ondo OUSG issued, redeemed, or moved 10,000 at a time.
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USYC large transfer alerts
Every Circle USYC transfer of 1M or more, with the sender and the recipient.
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PAXG mint & burn alerts
Paxos minting new PAXG for gold coming in, burning it on redemption, and moves of 250 PAXG or more.
Alerts and guides
Token alerts
Transfers, approvals, mints and burns on any ERC-20 token.
Alerts and guides
Whale alerts for large token transfers
Any token's transfers above an amount you set.
Alerts and guides
How to get alerts for smart contract events
Pick a contract and an event, then add conditions on its arguments.
Your own alerts, on any contract
The Beta plan is free: one wallet and one contract, no credit card.