The T-Bill rate,
settled on-chain.
Lock ETH into the Cashery vault and receive the live U.S. Treasury bill yield for your chosen tenor. The rate is frozen the moment you deposit — principal and yield return to your wallet at maturity. No lending, no leverage, no rehypothecation.
- Tenors
- 4
- 1M · 3M · 6M · 12M
- Min deposit
- 0.05
- ETH
- Rate lock
- 100%
- at deposit
- Network
- 4663
- Robinhood Chain
Live benchmark
Best available locked yield
12 Months tenor · 52-Week Bill
Source: U.S. Department of the Treasury · as of —. Net of the Cashery platform spread.
The mechanism
Five steps between your wallet and a sovereign bill.
Every stage is either enforced by the contract or attested by the treasury operator. Nothing in the path depends on another protocol's solvency.
- 01
Live quote
Cashery reads the U.S. Treasury daily bill curve and publishes a net yield for every tenor, refreshed continuously.
off-chain feed - 02
Lock ETH
You pick a tenor and deposit ETH. The vault writes your rate, principal and maturity date into the position — immutable from that block onward.
on-chain - 03
Treasury deploys
Capital is swept to the KYC-verified treasury account and allocated into matching-maturity U.S. Treasury bills.
custody - 04
Bills redeem
At maturity the bills redeem at par. Proceeds are funded straight back into the vault contract and the series is marked settled.
settlement - 05
You claim
Principal plus locked yield is claimable in a single transaction. No queue, no lockup extension, no discretionary gate.
on-chain
Rate board
Today's locked yields
Curve as of
—
Net APY = coupon-equivalent yield of the matching U.S. Treasury bill less the Cashery platform spread. Quotes are indicative until a deposit is confirmed on-chain; the rate written into your position is the rate that settles.
Yield simulator
Model a position before you commit a wei.
01 — Principal
02 — Tenor
03 — Engine trace
Payout at maturity
Sep 13, 2027 · 364 days
Principal
5.0000 ETH
Yield earned
+0.20394 ETH
Period return
4.079%
Value accrual
linear · ACT/365
Illustration only. Yield is denominated in ETH and assumes the position is held to maturity. See the risk disclosure.
Assurance
Built so the boring parts stay boring.
KYC-verified operator
The treasury account that purchases the bills is held by a fully KYC'd, identity-verified operator. No anonymous multisig holds depositor capital.
Real instruments only
Swept capital buys U.S. Treasury bills with maturities matched to the tenor you selected. No lending desks, no perps, no yield farming.
Rate locked by code
Your APY, principal and maturity block are written into the position at deposit. The operator cannot rewrite them afterwards.
Signed quotes
Every quote is EIP-712 signed by the rate oracle with a short expiry. The contract rejects any rate it cannot verify.
Deterministic settlement
A series can only be marked claimable once the contract actually holds enough ETH to cover every payout in it.
Non-custodial claims
Claiming is permissionless. Once a series settles, only your wallet can move your payout — the operator cannot pull it back.
Questions
Before you deposit
From the U.S. Treasury's daily bill rate publication. Cashery reads the coupon-equivalent yield for the bill that matches your tenor — 4-week, 13-week, 26-week or 52-week — subtracts the platform spread, and publishes the result as your net APY.
When your deposit transaction confirms, the contract stores your APY in basis points alongside your principal and maturity timestamp. Nothing — not a curve move, not the operator, not a contract upgrade — can change the payout those three numbers imply.
A position runs to maturity by design; the underlying bill does too. There is no early-redemption path in the base contract. Pick the shortest tenor if you may need the capital back sooner.
Capital sits in a KYC-verified treasury account and is deployed into Treasury bills. When the bills redeem, the proceeds are funded back into the contract and the series is marked settled, at which point every position in it becomes claimable.
In ETH. You deposit ETH and you claim ETH. The T-Bill yield sets how much ETH you get back — but ETH's own price movement against the dollar is yours, not Cashery's. Read the risk disclosure before you size a position.
The contract will not mark a series claimable unless it holds enough ETH to cover the payouts. If funding is late, positions stay unsettled and the emergency refund path returns principal. Nothing is auto-rolled into a new tenor.
Robinhood Chain (chain ID 4663) — an Arbitrum Orbit L2 that posts its data to Ethereum. It has no native chain token, so gas is paid in ETH, the same asset you deposit. Any EVM wallet connects to it without modification; the app will offer to add the network for you.
Open a position
Put idle ETH on the sovereign curve.
Connect a wallet, pick a tenor, lock today's rate. The rest is arithmetic the contract already knows how to finish.