What Is EigenLayer (EIGEN)? How It Works, Uses and Risks
What is EigenLayer? A plain-English guide to Ethereum restaking, AVSs, operators, the EIGEN token, slashing risk and how to avoid fake restaking sites.
EigenLayer is a restaking protocol on Ethereum that lets ETH stakers reuse their staked ETH to secure additional services, and EIGEN is the project's token for securing tasks and taking part in its incentives and governance. The idea is to let new networks "rent" Ethereum's economic security instead of building their own validator set from scratch.
Restaking became one of the most discussed ideas in Ethereum's ecosystem, and it also introduced new kinds of risk. This guide explains how EigenLayer works, what EIGEN is for and what to check before you get involved.
Origins
EigenLayer was built by Eigen Labs, founded by Sreeram Kannan, a former University of Washington professor. The protocol launched on Ethereum in stages: first accepting restaking deposits, then adding operators and services, and later enabling slashing so that misbehavior could actually be penalized. The EIGEN token was distributed partly through a "stakedrop" to early restakers and became transferable in 2024.
How EigenLayer Works
The problem it tries to solve
New networks such as oracles, bridges or data availability layers need validators who put money at risk so that cheating is expensive. Bootstrapping that security is hard and costly. Ethereum already has a large amount of staked ETH securing it. EigenLayer asks: what if that same stake could also back other services?
The three main roles
| Role | What they do | What they risk |
|---|---|---|
| Restakers | Deposit staked ETH, liquid staking tokens or EIGEN and delegate to an operator | Slashing of their stake, contract bugs |
| Operators | Run the software for one or more services | Being slashed, reputation |
| AVSs (Actively Validated Services) | Define tasks, rewards and slashing rules | Attracting enough security and operators |
Step by step
- 1A restaker deposits ETH-based stake into EigenLayer contracts, either through native restaking (pointing an Ethereum validator's withdrawals to EigenLayer) or by depositing liquid staking tokens.
- 2The restaker delegates to an operator they trust.
- 3The operator opts into one or more AVSs and runs their software.
- 4AVSs pay rewards for this security, which flow to operators and restakers.
- 5If an operator breaks an AVS's rules in a provable way, a portion of the stake allocated to that AVS can be slashed.
EigenDA, a data availability service built by Eigen Labs, was one of the first major AVSs. For more on this layer of the stack, see our explainer on data availability layers.
What the EIGEN Token Is For
Some faults can be proven on-chain, such as an operator signing two conflicting messages. Others cannot be proven by code but would be obvious to any honest observer, for example a data feed reporting a clearly false price. EigenLayer calls these intersubjective faults.
EIGEN is designed to secure that second kind of task. The design includes a mechanism allowing the token to be forked in extreme cases, so that stakers who acted dishonestly can be penalized even when the fault cannot be proven by a smart contract. In practice, EIGEN is used for:
- Staking within EigenLayer to back services that need this kind of security.
- Incentive programs that reward restakers and operators.
- Participation in the project's governance and community processes.
Supply Design
EIGEN does not have the simple fixed-cap story of Bitcoin. It had an initial supply set at launch, allocations to investors, contributors and the community that unlock over time, and its tokenomics allow for ongoing issuance to fund incentives as decided through the project's processes. Because these details matter and can change, read the official tokenomics and check the live EigenLayer (EIGEN) coin page for current circulating supply. Our explainer on token unlocks and price impact explains why unlock schedules matter.
Risks and Criticisms
- Stacked risk. Restaking layers new slashing conditions on top of normal Ethereum staking. A bug in an AVS or an operator mistake could cost restakers money.
- Smart-contract risk. Large deposits sit in EigenLayer contracts. Audits reduce but do not eliminate risk.
- Systemic concerns. Ethereum researchers, including Vitalik Buterin, have warned against using Ethereum's own consensus as a backstop for external services, since failures could spill back onto Ethereum.
- Liquid restaking tokens. Many users restake through third-party protocols that issue liquid restaking tokens, adding another layer of contract and depeg risk. Our guide on restaking covers this in more depth.
- Unlocks and volatility. Token unlocks and market swings can push the price sharply in either direction.
For a scenario-based outlook rather than price targets, see our EigenLayer price prediction for 2026–2027.
How to Avoid Fake EigenLayer Sites and Tokens
Restaking is complex, which makes it a favorite theme for phishing. Follow these steps:
- 1Open the official EigenLayer app only from the link on the project's official website or documentation.
- 2Verify the EIGEN contract address with our guide on how to confirm you have the real token contract.
- 3Ignore unsolicited "claim," "points conversion" or "season two airdrop" links.
- 4Before depositing, read exactly which contract you are approving and for how much.
Bottom line
EigenLayer extends Ethereum's staking security to other services through restaking, and EIGEN is built to secure tasks that code alone cannot judge. It offers extra rewards in exchange for extra and layered risk. If you consider restaking, understand the slashing rules of each service, choose operators carefully, and use only official links and verified contracts.
Frequently asked questions
What does EigenLayer do?
EigenLayer lets people who stake ETH, or hold liquid staking tokens, restake that stake to help secure additional services called Actively Validated Services (AVSs). In return they can earn extra rewards, but they also accept extra slashing risk if the operators they delegate to misbehave or break the rules of those services.
What is the EIGEN token used for?
EIGEN is designed as a work token for securing tasks where faults cannot be proven purely on-chain but would be obvious to reasonable observers, which EigenLayer calls intersubjective faults. EIGEN can be staked within EigenLayer to back such services and is also used in the project's governance and incentive programs.
Is restaking on EigenLayer risky?
Yes. Restaking adds layers of risk on top of normal staking: smart-contract bugs in EigenLayer, slashing by the services you help secure, operator mistakes and the risks of any liquid restaking token you use. Rewards are not guaranteed. Only restake what you can afford to lose and read the official documentation first.
Who created EigenLayer?
EigenLayer was developed by Eigen Labs, a company founded by Sreeram Kannan, previously a professor at the University of Washington. The protocol runs on Ethereum and launched in stages, starting with restaking deposits before adding operators, services and slashing.