alUSD, alETH and the alAsset model

What an Alchemix alAsset represents

When you borrow from an Alchemix vault, the protocol does not hand you someone else's deposit. It mints a new token that represents a claim on the collateral system as a whole. alUSD is the dollar-denominated version, backed by stablecoin deposits; alETH is the ether-denominated version, backed by ETH and liquid staking derivatives. Each one is a fully transferable ERC-20 token, which means it can leave your wallet, be sold, be supplied to a liquidity pool, or be sent to someone else entirely.

This transferability is what makes the design useful. Your loan is not a database entry visible only inside one interface; it is liquidity you can deploy anywhere. It also means the market can price the token, and that price is the honest signal of how much confidence exists in the backing.

How alAssets stay close to their peg

Two forces anchor an alAsset. The first is the Transmuter, which lets holders exchange alAssets for the underlying asset at a one-to-one rate as collateral is repaid into the system. That gives the token a floor: if it trades meaningfully below par, buying it and passing it through the Transmuter is profitable, and that buying pressure closes the gap.

The second force is debt repayment demand. Anyone holding an Alchemix loan can clear a unit of debt by burning a unit of alAsset, so a discount creates an immediate incentive for borrowers to buy the token cheaply and retire debt at full value. Together these mechanisms produce a soft peg — one that can wander during stress but has structural reasons to return.

• Transmuter redemption provides a redemption floor
• Borrowers buy discounted alAssets to retire debt cheaply
• Liquidity pools smooth day-to-day price movement

Where alAssets are used

The simplest use is spending: swap alUSD for a conventional stablecoin and you have liquidity without having sold your original position. Beyond that, alAssets circulate in automated market maker pools where liquidity providers earn trading fees, and they appear as collateral or as a yield leg in other DeFi strategies.

Each of those uses adds a layer of exposure. Holding alUSD is exposure to Alchemix; providing liquidity with alUSD adds exposure to the pool's design and to impermanent loss; using it as collateral elsewhere adds exposure to that third protocol. Layering is not wrong, but every layer should be a deliberate choice rather than a side effect of chasing a headline yield number.

A practical checklist before minting alUSD or alETH

Before you mint an alAsset, confirm three things. First, that you understand the ratio you are borrowing at and would still be comfortable at half your assumed yield. Second, that there is enough on-chain liquidity for the size you intend to swap, because a thin pool turns a good rate into a bad one. Third, that you have verified the token contract address from alchemix.fi rather than from a search result or a message.

Those three checks take a few minutes and remove the majority of avoidable mistakes. The protocol's mechanics are elegant, but elegance does not protect a user who pastes the wrong address into a swap.