Overview
Euler is a modular decentralized finance platform that merges lending, borrowing, and token swapping into a single composable ecosystem. Marketed as a Lending Super App, Euler is built to serve both end users who want efficient access to liquidity and builders who want to create custom lending markets and vaults. The platform emphasizes capital efficiency, broad asset support, and composability, enabling vaults to be used as collateral for other vaults and facilitating seamless movement between positions.
Core Capabilities
- Integrated Lending, Borrowing and Swapping: Users can lend assets to earn yield, borrow against collateral, and swap tokens or entire vault positions without leaving the Euler universe.
- Custom Vault Creation (EVK): The Euler Vault Kit (EVK) allows developers to create and deploy tailored lending vaults with configurable parameters and market rules.
- Collateral Composability (EVC): The Ethereum Vault Connector (EVC) enables vaults to act as collateral inside other vaults, unlocking layered credit strategies and composable financial engineering.
- Capital Efficiency and Risk Controls: Multi-parameter risk settings let vault creators and the protocol tune collateral factors, borrow caps, and liquidation mechanics to balance utilization and safety.
- Developer Tooling and Open Source: Public repositories, developer documentation, and integrations are provided for rapid prototyping and secure deployment.
Key Features
- EulerSwap: A decentralized exchange experience integrated with lending, allowing users to swap tokens and vault positions while benefiting from the platform’s liquidity and lending rails.
- Vault Customization: Create, configure, and deploy lending vaults in minutes with the EVK, setting bespoke rules for asset acceptance and risk parameters.
- Vault-as-Collateral: Use the EVC to allow vault positions to serve as collateral in other markets, enabling leveraged strategies and cross-market composability.
- Broad Asset Support: Lend and borrow a wide range of crypto assets; the system is designed to support non-standard and emerging tokens as collateral with tailored risk profiles.
- Security and Incentives: Audited contracts, a significant bug bounty program, and governance processes backed by tokenholder delegates ensure continuous review and ecosystem safety.
How It Works
- Developers use the EVK to define vault parameters and deploy new markets on Euler.
- Users deposit assets to lend or to use as collateral, and can borrow against their positions according to configured risk parameters.
- Through EulerSwap, users can exchange tokens or move in and out of vault positions seamlessly, reducing friction and improving capital efficiency.
- The EVC allows vaults to be recognized as collateral, enabling advanced composability where one vault’s position secures borrowing in another.
Security, Governance, and Ecosystem Support
Euler emphasizes security through independent audits and a public bug bounty program with significant rewards. Governance is community-driven: tokenholders and delegates manage protocol upgrades, risk settings, and new market launches. The project provides documentation, GitHub repositories, and active community channels (e.g., Discord) to support builders and integrators.
Why Choose Euler
Euler is aimed at users and developers seeking a highly composable lending stack with tight integration between trading and credit primitives. Its modular architecture, strong developer tooling, and emphasis on vault composability make it well-suited for novel DeFi products, structured credit, and capital-efficient strategies. With audited code, active governance, and sizable security incentives, Euler positions itself as a robust choice for both retail participants and institutional builders.
Getting Started
- Visit the App to interact with markets, lend, borrow, or swap vaults.
- Consult the Docs and GitHub to build custom vaults using EVK or integrate with the EVC.
- Join the community on Discord and participate in governance forums to propose and vote on improvements.
Euler combines flexible lending primitives, an internal swapping mechanism, and developer-centric toolkits to enable a new class of composable DeFi applications and capital-efficient strategies.


