The Ethereum Vault Connector is open-source account infrastructure for ERC-4626 vaults.
EVC lets selected vaults recognize one another as collateral, coordinate account checks, delegate scoped permissions, and batch multi-step actions. It is designed to make lending markets more composable without forcing every vault into one shared risk model.
EVC makes Euler vaults composable.
For builders, integrators, curators, and agents, EVC makes vault relationships programmable.
Integrators use EVC to build user flows across lending, borrowing, collateral, and repayment actions.
Curators use EVC to define which vaults can recognize one another as collateral.
Agents use EVC to execute scoped lending workflows through operators, sub-accounts, batching, and account checks.
Why EVC Exists
Lending markets need more than isolated vaults.
A vault may need to accept collateral from another vault. A user may need to supply, borrow, repay, and rebalance across several markets in one flow. A developer may need operators, sub-accounts, or custom execution logic without rebuilding account infrastructure from scratch.
EVC provides that coordination layer.
It does not define a market’s risk model, pricing, governance, collateral rules, or user interface. Those choices stay with the vaults and products built around it.
What EVC Does
EVC gives vaults and applications a shared account layer.
Collateral Relationships
Vaults can recognize deposits in selected connected vaults as collateral.
Sub-Accounts
Users and applications can separate positions across different accounts, markets, or strategies.
Operators
Accounts can delegate specific execution rights without granting broad wallet control.
Batching
Multiple actions across vaults and external contracts can be executed in one transaction path, with checks applied at the end of the batch.
Account Status Checks
Vaults can use EVC to coordinate whether an account remains valid after a set of actions.
Together, these features let builders create lending products that connect vaults where needed while keeping market parameters defined at the vault level.
What Builders Can Create
EVC can support a wide range of credit products and workflows, including:
- overcollateralized lending markets
- tokenized asset markets
- permissioned markets
- collateralized borrowing products
- stablecoin or synthetic asset systems
- liquidation and repayment workflows
- automated position management
- embedded lending applications
- agent-driven lending workflows
The exact product design depends on the vaults, hooks, parameters, permissions, and interfaces built around EVC.
Security Review
EVC has been reviewed through multiple independent audits and security reviews, including yAudit, Certora, Hunter Security, Spearbit, and Trail of Bits.
Security review does not remove protocol risk. It gives builders, curators, and integrators more context for evaluating the infrastructure they build on.
EVC is also part of Euler V2’s broader security process and bug bounty program.
EVC and Euler V2
EVC is one of the core components of Euler V2, alongside the Euler Vault Kit.
EVK lets builders create configurable ERC-4626 lending vaults. EVC lets those vaults coordinate collateral, accounts, operators, batching, and execution checks.
Together, they form the foundation for Euler’s modular lending infrastructure: vaults define market rules, and EVC defines how selected vaults and accounts can interact.
Links
This content is brought to you by Euler Labs, which wants you to know a few important things.
This piece is provided by Euler Labs Ltd. for informational purposes only and should not be interpreted as investment, tax, legal, insurance, or business advice. Euler Labs Ltd. and The Euler Foundation are independent entities.
Neither Euler Labs Ltd., The Euler Foundation, nor any of their owners, members, directors, officers, employees, agents, independent contractors, or affiliates are registered as an investment advisor, broker-dealer, futures commission merchant, or commodity trading advisor or are members of any self-regulatory organization.
The information provided herein is not intended to be, and should not be construed in any manner whatsoever, as personalized advice or advice tailored to the needs of any specific person. Nothing on the Website should be construed as an offer to sell, a solicitation of an offer to buy, or a recommendation for any asset or transaction.
This post reflects the current opinions of the authors and is not made on behalf of Euler Labs, The Euler Foundation, or their affiliates and does not necessarily reflect the opinions of Euler Labs, The Euler Foundation, their affiliates, or individuals associated with Euler Labs or The Euler Foundation.
Euler Labs Ltd. and The Euler Foundation do not represent or speak for or on behalf of the users of Euler Finance. The commentary and opinions provided by Euler Labs Ltd. or The Euler Foundation are for general informational purposes only, are provided "AS IS," and without any warranty of any kind. To the best of our knowledge and belief, all information contained herein is accurate and reliable and has been obtained from public sources believed to be accurate and reliable at the time of publication.
The information provided is presented only as of the date published or indicated and may be superseded by subsequent events or for other reasons. As events and markets change continuously, previously published information and data may not be current and should not be relied upon.
The opinions reflected herein are subject to change without being updated.