EigenLayer

EigenLayer

EigenLayer is a restaking protocol on Ethereum that allows ETH stakers to opt into securing additional services — called Actively Validated Services (AVSs) — using the same staked ETH that already secures Ethereum. It reuses Ethereum's economic security as a general-purpose trust primitive.

How Restaking Works

  1. ETH holders stake on Ethereum (solo or via LSTs like stETH)
  2. They opt into EigenLayer, delegating stake to an operator
  3. Operators run AVS software — additional node software for specific services
  4. If an operator misbehaves in an AVS, they can be slashed by that AVS's slashing contract, in addition to standard Ethereum slashing

Restakers earn additional yield from AVS fees on top of base Ethereum staking rewards.

Scale (2026)

  • ~$18B in restaked ETH, ~4.3M ETH, ~1,900 active operators as of early 2026
  • Most restaked capital of any non-L1 protocol

AVSs (Actively Validated Services)

AVSs are the consumers of EigenLayer's pooled security. They pay fees to operators who validate their service. Categories:

  • Data availability — EigenDA, the first major AVS, provides high-throughput DA for rollups (100 MB/s sustained as of V2)
  • Oracle networks — price feeds, randomness, cross-chain data
  • AI verification — EigenAI (live late 2025) provides verifiable AI inference; 280+ crypto-AI projects need trust-minimized model evaluation
  • Bridges and interop — cross-chain messaging with slashable security

Vertical AVS (VAVS) specialization is the 2026 trend: AVSs targeting one specific validation type rather than general-purpose.

EigenDA

EigenLayer's own data-availability service. Operators restake ETH and attest to blob availability. Security backed by restaked ETH depth rather than a separate token. Rollups can integrate EigenDA as a DA layer alternative to Ethereum blobs or Celestia.

EigenDA V1 had a 15 MB/s throughput cap. EigenDA V2 launched on mainnet in July 2025, delivering 100 MB/s sustained throughput (2,000 MB/s read) — a major performance upgrade.

EIGEN Token

Dual-token model:

  • ETH — for slashing that involves objective, on-chain provable faults (like double-signing)
  • EIGEN — for "intersubjective faults" — behaviors that are wrong but not easily proven on-chain (like data withholding)

2026 governance proposal: introduce fee model channeling AVS revenue and EigenCloud service fees to EIGEN holders.

"Verifiable Cloud" Direction

Founder Sreeram Kannan (former tenured associate professor at University of Washington, PhD from UIUC) reframes EigenLayer as a decentralized compute marketplace — not just a yield booster. The pitch: any service needing cryptoeconomic guarantees can rent Ethereum-level security without bootstrapping its own validator set.

Tradeoffs

  • Restaking amplifies slash risk — a single operator slashed across multiple AVSs can lose more than base Ethereum staking
  • Systemic risk if a major AVS has a bug in its slashing logic
  • Operator concentration: large LRT (liquid restaking token) protocols control significant delegated stake

Related

data-availability · ethereum-l2s · rollups

Sources