What is Euler (EUL)?

Quick Facts

• Type: Governance and utility token for Euler Finance
• Blockchain: Ethereum (ERC-20), also deployed on Arbitrum, Base, and more
• Protocol type: Non-custodial, permissionless DeFi lending
• Core tech: Euler Vault Kit (EVK) and Ethereum Vault Connector (EVC)
• Founders: Michael Bentley, Jack Prior, Doug Hoyte
• Backers: Paradigm, Coinbase Ventures, and other strategic investors
• Protocol version: Euler V2 launched in 2024

Introduction

Euler Finance is a non-custodial lending protocol built on Ethereum, designed to make decentralized borrowing and lending more flexible and accessible. Its native token, EUL, powers governance, incentive programs, and protocol fee flows.

Unlike first-generation DeFi lenders, Euler takes a modular, permissionless approach — anyone can create a lending market for virtually any ERC-20 token without needing approval from a centralized committee.

History & Background

Euler was founded in 2020 by a team of technical experts led by Michael Bentley, who holds a PhD in Dynamical Systems Mathematics from Oxford University. Co-founders Jack Prior and Doug Hoyte contributed full-stack development and smart contract expertise.

In 2023, the protocol suffered a significant hack that temporarily drained its TVL. The team responded quickly, recovered user funds, and used the incident as a catalyst to redesign the protocol. Euler V2 launched in 2024, introducing a completely revamped modular architecture and expanding to multiple blockchain networks.

How Euler Works

Euler's architecture is built around two core components: the Euler Vault Kit (EVK) and the Ethereum Vault Connector (EVC).

The EVK lets developers deploy customizable, ERC-4626-compliant lending vaults for individual assets. Each vault functions as a standalone lending environment with its own risk parameters, interest rate models, and price oracles.

The EVC acts as an interoperability layer, allowing vaults to recognize each other's deposits as collateral. This enables complex, composable financial strategies while keeping risk isolated and transparent.

Tokenomics

EUL is the governance and utility token of the Euler ecosystem. Token holders vote on protocol upgrades, parameter changes, and treasury decisions.

EUL is also earned through Fee Flow auctions, where protocol fees are distributed or converted into EUL, rewarding active participants. The initial token distribution balances long-term development, community involvement, and early investor rewards — with allocations spanning platform incentives, treasury reserves, investor backers, a safety module, and retroactive rewards for early users.

Ecosystem & Use Cases

Euler has grown into a multi-chain lending hub, deployed on networks including Arbitrum, Base, Avalanche, and Sonic. Its permissionless design means developers can build custom lending products, structured vaults, and yield strategies on top of the protocol.

The protocol also features EulerSwap, an integrated DEX that connects Euler's lending framework with on-chain trading, further deepening capital efficiency across the ecosystem.

Team, Governance & Community

Euler Labs leads protocol development, with a team of blockchain engineers and quantitative analysts. Governance is managed on-chain through EUL token voting, ensuring decentralization and community participation in key decisions.

The team's transparent recovery after the 2023 hack earned recognition across the DeFi community and demonstrated a commitment to long-term protocol integrity.

Advantages

• Permissionless markets: Any ERC-20 token can have a lending market without centralized approval.
• Modular architecture: Isolated vaults reduce systemic risk compared to monolithic lending pools.
• Composability: The EVC enables cross-vault collateral, enabling sophisticated DeFi strategies.
• Multi-chain reach: Deployed across Ethereum, Arbitrum, Base, Avalanche, and more.
• Strong backing: Investors like Paradigm and Coinbase Ventures validate the protocol's credibility.

Risks & Challenges

• Smart contract risk: Complex modular systems present a broader attack surface for exploits.
• Past hack: The 2023 security incident highlights real vulnerabilities in DeFi lending infrastructure.
• Regulatory ambiguity: Governance tokens face legal uncertainty in many jurisdictions globally.
• Market sensitivity: EUL price is subject to broader crypto market volatility.
• Competition: Euler competes directly with established protocols like Aave and Compound.

Long-Term Vision

Euler's stated goal is to become the primary liquidity layer for DeFi — a universal credit market where any asset can be lent or borrowed on-chain. By combining permissionless vault creation, cross-chain expansion, and deep composability, Euler aims to address liquidity fragmentation and improve capital efficiency across the entire decentralized finance ecosystem.