EulerEarn is a set-and-forget way for users to earn passive yield by depositing one asset that is automatically allocated across curated strategies on ERC4626 vaults.
It brings professional risk management to DeFi yield strategies, while keeping everything non-custodial, immutable, and accessible to anyone.
The Yield Challenge in DeFi
DeFi has grown increasingly complex with the rise of sophisticated lending and borrowing strategies. While this opens new opportunities for yield, it also creates barriers for users who want passive returns without managing constant rebalancing and risk controls.
EulerEarn solves this by introducing a framework for professional risk curation, letting DAOs, protocols, and independent experts manage strategies transparently while users enjoy passive yield in a simple ERC-4626 vault.
Why EulerEarn?
- Permissionless: Anyone can deploy and manage an Earn vault: no approvals, no gatekeeping.
- Non-Custodial and Immutable: Core contracts cannot be upgraded. Risk-sensitive actions like increasing caps or changing roles are subject to timelocks with guardian veto powers for safety
- Curated Yield: Deposits are spread across up to 30 strategies with curator-defined caps and queues, balancing yield and liquidity.
- Set-and-Forget: Users hold a single token representing their share of the aggregated pool, with withdrawals always on-chain and permissionless.
How EulerEarn Works
Each EulerEarn vault manages a single underlying asset (e.g., ETH, USDC). Deposits are aggregated and allocated across multiple ERC-4626 strategies, most often Euler lending vaults, but any ERC-4626 is supported.
Key mechanics include:
- Supply and Withdraw Queues: Deposits and withdrawals follow curator-defined queues, ensuring assets are allocated efficiently and liquidity for withdrawals is maintained.
- Per-Strategy Caps: Curators set maximum allocations per strategy, isolating risk. Cap increases are timelocked, decreases are instant.
- Idle Reserve Option: Vaults can hold a small reserve (via escrow or a non-borrowable EVK vault) to enable instant withdrawals without sacrificing overall strategy flexibility.
- Yield Smearing: Interest harvested from strategies is released gradually over time, smoothing out share price jumps and reducing MEV or timing risks.
- Loss Handling: Realized losses are first offset against undistributed yield, then socialized across users proportionally.
Fees
Curators can set a performance fee of up to 50% of positive yield, distributed as additional vault shares to a designated recipient. No protocol-level fees are charged.
Governance and Composability
EulerEarn vaults are ERC20Votes-enabled, turning vault shares into governance power for curators or communities that want depositor-driven control.
Because vaults are fully ERC-4626 compliant, they are composable with the broader DeFi ecosystem, enabling integrations with aggregators, structured products, and on-chain asset managers.
Getting Started as a Curator
Anyone can deploy an Earn vault today through the EulerEarn Factory or via the Creator UI. Vaults are immutable, role-based, and permissionless, meaning yield strategies can now be curated and managed by anyone, not just protocols or institutions.
EulerEarn is more than a vault aggregator. It’s a foundation for transparent, professional risk management in DeFi, designed to balance yield optimization, liquidity responsiveness, and depositor safety.
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