What Is EigenLayer & AVS? Restaking Explained (2026)
EigenLayer launched on Ethereum mainnet in 2024 and introduced a new primitive: restaking. Instead of staked ETH only securing Ethereum, restakers can opt-in to also secure other protocols — earning additional yield in exchange for taking on additional slashing risk.
The Problem EigenLayer Solves
Building a new decentralized protocol (oracle network, data availability layer, cross-chain bridge) traditionally requires bootstrapping your own validator set and token. This is expensive and takes years. Most new protocols never achieve the security level of Ethereum.
EigenLayer's insight: Ethereum already has ~$50B+ in staked ETH. What if you could rent that security?
How Restaking Works
- Stake ETH normally (via Lido, Rocket Pool, or directly as a validator)
- Deposit into EigenLayer — your stETH or validator withdrawal credentials are delegated to EigenLayer
- Opt into AVSs — choose which Actively Validated Services you want to secure
- Earn AVS rewards — each AVS pays operators (and by extension restakers) in its native token
- Take on slashing risk — if you behave dishonestly toward an AVS, your stake can be slashed
What Is an AVS?
An Actively Validated Service is any protocol that uses EigenLayer to inherit Ethereum's security. Examples of live AVSs in 2026:
- EigenDA: a data availability layer for L2 rollups (EigenLayer's own product)
- Lagrange: ZK coprocessor for verifiable on-chain computation
- Witness Chain: decentralized watchtower network for optimistic rollups
- Brevis: ZK data co-processor
- Omni Network: cross-chain messaging secured by restaked ETH
AVSs pay operators in their tokens; operators share a portion with delegators (restakers).
Liquid Restaking Tokens (LRTs)
Most users don't restake directly through EigenLayer — they use Liquid Restaking Tokens (LRTs) that handle AVS selection and give you a liquid receipt token:
- ether.fi (eETH/weETH): largest LRT by TVL; auto-selects AVSs
- Renzo (ezETH): multi-AVS restaking
- Kelp DAO (rsETH): similar model
- Puffer Finance: focuses on native restaking with DVT
LRTs let you participate in restaking rewards without running infrastructure, and your position remains liquid (tradeable, usable as collateral in DeFi).
Risks of Restaking
Slashing Risk (Compounding)
A restaker can be slashed by Ethereum AND by any AVS they opt into. Multiple slashing conditions multiply your risk surface.
Smart Contract Risk
EigenLayer's contracts are complex. A bug could affect all restakers simultaneously — billions in TVL from a single vulnerability.
AVS Quality Risk
Not all AVSs are equally well-designed. Opting into a poorly-coded AVS with unreliable slashing conditions is dangerous. Most users delegate this decision to LRT protocols.
Liquidity Risk
LRTs can depeg from ETH during stress events. In May 2024, ezETH briefly depegged ~80% during a liquidity crunch.
Centralization Risk
A small number of operators (Figment, P2P, Chorus One) control the majority of restaked ETH — creating systemic risk if they behave maliciously or get compromised.
The Yield Math
Base ETH staking: ~4-5% APR Restaking premium (from AVS rewards): varies widely, 1-8% additional LRT protocol cut: typically 10-15% of rewards
In practice, most LRT holders in 2026 earn 5-8% total APR versus 4-5% for plain staking. The yield premium for restaking risk is real but modest.