Dollars on Demand

KAST Earn lets you deposit USD into the Gauntlet USD Alpha vault. Curated by Gauntlet's quantitative team, this vault automatically deploys your funds across top-tier DeFi (Decentralized Finance) protocols to capture the best risk-adjusted yields.

There is no cap on deposits or earnings. The displayed reward rate is variable and reflects the vault's current performance. Note that because the strategy adapts to changing markets, the reward rate will fluctuate over time.

This product is self-custodial, which gives you direct control over your “Vault shares.” This is fundamentally different from a traditional custodial account:

• Your Smart Wallet

Your funds are held in a secure, onchain smart wallet.

• Onchain proof

When you deposit, you receive “Vault Share” tokens directly in your smart wallet. This is your onchain, verifiable proof of ownership — you can see your assets on a block explorer at any time.

• Safety Controls

Gauntlet applies institutional-grade risk management. This includes limiting exposure to “blue-chip” stablecoins and strictly constraining position sizes based on available liquidity to ensure you can exit positions smoothly.

• Risks

This is not a bank deposit. Yields are generated via onchain strategies which carry smart contract and liquidity risks.

The vault auto-compounds rewards. Instead of a daily cash payout, the value of your Vault Shares increases as the strategy earns yield. You realize these earnings when you withdraw back to your Spending Account.

Yes. Your funds are not time-locked. You can initiate a withdrawal from the vault back to your USD Virtual Account at any time, subject to standard processing times.

KAST currently passes on 100% of the net yield displayed in the app to users. Fees may be introduced in the future, and users will be notified in advance if this occurs.

USD Prime is KAST's yield-enabled vault powered by USDKY. USDKY derives its value from the underlying M collateral, which consists primarily of short-term U.S. Treasury bills. Yield generated from this collateral is reflected in the value of USDKY over time.

USDKY is powered by the M0 protocol.

There is no cap on deposits or earnings. The reward rate displayed in the app is variable and reflects the vault's current performance. Because it is linked to underlying collateral yield, the reward rate may fluctuate over time and is not fixed or guaranteed.

USD Prime is designed as a self-custodial vault.

• Self-custodial wallet

Your USDKY tokens are held directly in your Privy wallet. You maintain control of your assets at all times.

• Onchain ownership

When you deposit, you receive USDKY tokens directly in your wallet. You can verify your balance on-chain at any time.

• Reserve backing

USDKY derives its value from the underlying M collateral, which consists primarily of short-term U.S. Treasury bills.

• Access to funds

You can withdraw from the vault at any time by transferring USDKY back to your KAST Spending Account.

• Important note

This is not a bank deposit. Returns are variable, not guaranteed, and subject to market conditions and protocol performance.

Instead of receiving a cash payout, earnings are reflected in the value of your vault balance over time. As yield accrues, the redemption value of USDKY increases. You realize these earnings when you withdraw funds back to your KAST Spending Account.

Yes. Your funds are not time-locked. You can initiate a withdrawal from the vault back to your USD Virtual Account at any time, subject to standard processing times.

KAST currently passes on 100% of the net yield displayed in the app to users. Fees may be introduced in the future, and users will be notified in advance if this occurs.