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Alchemix is a DeFi protocol that offers self-repaying loans: deposit crypto as collateral, borrow up to 50% of its value, and the loan automatically pays itself off over time using yield generated by the deposited…

~16 min read3 sectionsUpdated Jun 2026

Alchemix

Alchemix is a DeFi protocol that offers self-repaying loans: deposit crypto as collateral, borrow up to 50% of its value, and the loan automatically pays itself off over time using yield generated by the deposited collateral. Unlike traditional DeFi lending platforms, Alchemix borrowers face no liquidation risk — your collateral cannot be seized if its market price drops, because the loan is always fully backed by the deposit itself. The tradeoff is patience: repayment depends on yield rates, which can slow to a trickle in bear markets. Alchemix supports deposits in stablecoins and ETH, routing them to established yield sources like Yearn and Aave to generate the returns that gradually erase the debt.

What Is Alchemix?

Alchemix is a decentralised finance (DeFi) platform that offers self-repaying loans. You deposit cryptocurrency as collateral, borrow against it, and your loan automatically repays itself over time using the yield (interest) generated by your deposited collateral. You never face liquidation — the risk of losing your collateral if its value drops — because the loan is always backed by the full deposit.

Think of it like getting an advance on your savings account interest. The bank gives you money now, and your future interest payments gradually pay off the advance.

The Problem It Solves

Traditional DeFi lending platforms like Aave or Compound require borrowers to constantly monitor their loan-to-collateral ratio. If the collateral's value drops below a threshold, the platform automatically sells (liquidates) your collateral, often at a loss. This creates stress and risk for borrowers. Alchemix eliminates this risk entirely by capping the loan at a fraction of the deposit and using yield to repay it.

How It Works

When you deposit DAI (a stablecoin) or ETH into Alchemix, the platform routes your deposit into yield-generating strategies — lending protocols and liquidity pools that earn interest. You can then borrow up to 50% of your deposit as a synthetic asset (alUSD or alETH). Over time, the yield from your full deposit gradually pays down your loan until it reaches zero.

You can repay early if you want your full deposit back sooner, or simply wait for the yield to handle it. There are no monthly payments, no interest charges beyond the yield that would have been yours anyway, and no risk of liquidation.

Why It Matters

Alchemix introduced a genuinely novel concept in DeFi: loans that pay themselves off. While platforms like Aave offer traditional overcollateralised lending with liquidation risk, Alchemix trades capital efficiency for peace of mind. It demonstrates how composable DeFi protocols can create financial products that have no direct equivalent in traditional finance.

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