Key Features
Modular Vault Architecture
Each lending market is an isolated vault. One vault experiencing unusual activity does not affect the others. This separation is fundamental to how Euler Finance's protocol manages systemic risk differently from older pooled designs.
ERC-4626 Compatibility
All supply positions follow the ERC-4626 tokenized vault standard. That means your deposit receipt is composable with yield aggregators, strategy contracts, and portfolio trackers without custom integrations.
Curator-Governed Markets
Risk parameters — collateral factors, oracle sources, interest rate curves — are set by curators such as Gauntlet or Sentora. The Euler Finance platform does not impose a one-size-fits-all approach.
Permissionless Vault Deployment
Anyone can deploy a new lending market using the core factory contracts, tested with Hardhat and formally verified. Teams launching new tokens can bootstrap liquidity from day one.
Multi-Collateral Borrowing
A single account can hold multiple collateral positions and borrow several assets simultaneously. The health factor is calculated across the entire account, not per individual position.
Real-Time Health Monitoring
The interface surfaces live collateral ratios, liquidation prices, and projected yields. No guessing — numbers update as on-chain state changes.
Transparent On-Chain History
Every supply, borrow, repay, and liquidation event is permanently recorded on Ethereum mainnet. Third-party analytics tools can read the full protocol history without relying on Euler Finance's own servers.
Euler Finance by the Numbers
Total value locked across all active vaults on Ethereum mainnet
Independent lending markets deployed by curators from launch through 2025
Current protocol version, rebuilt from the ground up after v1 launched in 2022
Unique wallet addresses that have interacted with Euler Finance contracts
How It Works
From first wallet connection to an active borrow position, here is the complete flow on the Euler Finance platform.
Connect your Ethereum wallet
MetaMask, WalletConnect, or any EIP-1193 compatible wallet works. The app never takes custody of your keys. Once connected, your address and balances load automatically.
Browse available markets on the Explore page
Each card shows the curator, supported assets, total supply, total borrowed, and the best available return on equity. Filter by asset, curator, or market type to narrow the list quickly.
Supply collateral or deposit to earn yield
Tap a vault, enter an amount, approve the token (one-time per asset), and confirm the deposit. You receive an ERC-4626 share token representing your position. That token accrues value as interest is collected.
Open a borrow position if needed
With collateral deposited, select the asset you want to borrow and choose an amount that keeps your health factor comfortably above 1. The interface shows your liquidation price in real time.
Manage, repay, and withdraw at any time
There are no lock-up periods on the lender side (subject to available liquidity). Repay debt in full or partially, then withdraw collateral. Everything settles in the same Ethereum transaction.
Why Euler Finance
Honestly, a lot of lending protocols look similar on the surface. Here is what actually sets this one apart.
Isolated risk, not shared pools
Older protocols put all assets into a single pool. If one collateral token collapses, every depositor bears the loss. Euler Finance's architecture isolates each market, so a bad oracle in one vault is contained there. Learn more about decentralized finance risk models on Wikipedia.
Professional risk management built in
Curators like Gauntlet and Sentora set parameters using quantitative models. They adjust collateral ratios and interest curves as market conditions change — a level of active management that self-governed pools rarely achieve.
Open infrastructure, not a walled garden
Because vault contracts are ERC-4626 compatible and built using open tools including Hardhat for testing, any developer can integrate Euler Finance positions into their own product. The team behind Euler Finance publishes all contract addresses and ABIs publicly.
Composable yield for advanced strategies
Supply tokens can be used as collateral in the same protocol or deposited into external yield strategies — looping is possible in a single transaction. That composability is what makes the return-on-equity figures notable. Visit the team page to understand who built this infrastructure.
FAQ
Common questions about using Euler Finance. For more depth, see the full Q&A section.
What is Euler Finance?
Euler Finance is a non-custodial lending protocol built on Ethereum that lets users supply assets to earn yield or borrow against collateral inside permissionless, curator-governed vaults. Version 2 launched in 2024 with a redesigned vault architecture that isolates risk at the market level rather than sharing it across a single pool.
How do I start lending on Euler Finance?
Connect a compatible Ethereum wallet, go to the Lend section of the app, pick a vault whose risk profile and yield suit you, then deposit your tokens. Interest starts accruing in the same block as your deposit, and you can withdraw at any time subject to available liquidity in that vault.
Is Euler Finance safe and audited?
The protocol has undergone multiple independent security audits, results of which are linked in the official documentation. Smart contracts are open-source and verifiable on Etherscan. That said, no DeFi protocol is without risk — price oracle failures, smart-contract bugs, and liquidity crunches are real possibilities. Always read the risk disclosures before depositing.
What tokens can I borrow on Euler Finance?
Available borrowable assets depend on the specific vault you enter. Common assets across active markets include USDC, USDT, PYUSD, RLUSD, WETH, and WBTC. New markets appear as curators deploy them, so the list grows over time.
Can I use Euler Finance if I have never used DeFi before?
Yes, though you will need a basic understanding of Ethereum wallets and gas fees. The interface is designed to be approachable, and the documentation walks through every step from wallet setup to managing a borrow position with margin to spare.
Why should I choose Euler Finance over other lending protocols?
Euler Finance separates risk management from the core protocol. Each vault is independently curated, which means a problem in one market does not cascade into others — a structural advantage compared to monolithic lending pools. The ERC-4626 standard also makes positions composable with the wider Ethereum DeFi stack.
How does Euler Finance handle liquidations?
When a position's health factor drops below 1.0, liquidators can repay part of the outstanding debt and claim collateral at a discount. The exact discount, maximum repayable amount, and delay parameters are defined per vault by the curator. Fast liquidation mechanics keep bad debt to a minimum.
What is a vault curator on Euler Finance?
A curator is an entity — a DAO, a professional risk management firm, or an individual team — that deploys and configures a lending vault. They choose which collateral is accepted, set loan-to-value ratios, pick oracle feeds, and tune the interest rate model. The Euler Finance protocol itself enforces the parameters the curator sets but does not dictate what those parameters must be.
Does Euler Finance support ERC-4626 vaults?
Yes. The Euler Finance vault architecture is fully ERC-4626 compatible, making it interoperable with yield aggregators, strategy contracts, and portfolio dashboards that follow that standard. This was a deliberate design choice in v2 to remove the need for custom wrapper contracts.
What networks does Euler Finance run on?
The primary deployment is on Ethereum mainnet, where the majority of the total value locked resides. The modular vault design — built and tested using Hardhat — makes deploying on additional EVM-compatible networks straightforward when demand justifies it.
How do I contact the Euler Finance team or report a bug?
Join the official Discord server for community support, or open an issue on the GitHub repository at github.com/euler-xyz. Security vulnerabilities should follow the responsible disclosure process described in the documentation — please do not post vulnerability details publicly before a fix is deployed.