Eigenlayer Rolls Out Multichain Verification, Bringing Ethereum-Grade Security to Layer-2 Networks

Eigenlayer, the Ethereum-based restaking protocol, has made a major leap in its mission to scale decentralized infrastructure. On Thursday, the team unveiled a multichain verification feature that allows decentralized services to operate across layer-2 (L2) networks without compromising Ethereum-grade security.

The feature is now live on the Base Sepolia Testnet, with a mainnet launch expected in Q3 2025, according to Eigen Labs CEO Sreeram Kannan.

Multichain Support for Actively Validated Services (AVS)

Until now, Actively Validated Services (AVS)—decentralized middleware such as data availability layers, oracles, and bridges—had to choose between deploying on Ethereum with top-tier security or operating on cheaper, faster chains with lower security guarantees.

“Until now, AVS had to choose between leveraging Ethereum’s security or scaling to faster, cheaper environments,” said Kannan. “With Multichain Verification, they don’t have to make a choice.”

The protocol now enables AVS to run on layer 2s like Base, while inheriting the pooled security of Eigenlayer’s Ethereum-based validator set.

How It Works: Ethereum Security, Multichain Reach

The multichain verification mechanism allows validator data—such as staked assets, operator configurations, and slashing rules—to sync automatically across all supported networks.

This means:

Misbehaving validators can be slashed on Ethereum, even if they are operating on another chain.
Stake weights and operator configurations remain consistent across environments.
Security penalties follow validators, regardless of the chain they’re deployed on.

This interoperability ensures that Ethereum-grade trust assumptions apply even to services running on non-Ethereum chains—boosting both scalability and decentralization.

Base, Coinbase’s Ethereum L2 network, was selected as the first chain to support the testnet rollout.

“Base stood out as our first partner because of its vibrant builder ecosystem and alignment with our mission to accelerate the app layer,” Kannan explained.

Eigen Labs plans to add more L2s and appchains soon and transition from testnet to mainnet in Q3 2025.

Part of a Broader Push to Upgrade Web3 Infrastructure

Eigenlayer’s announcement comes amid a wave of infrastructure upgrades across the blockchain space:

Build on Bitcoin, a hybrid L1-L2 project, launched ZK fraud proofs inside its optimistic rollup framework, moving closer to full decentralization on the L2Beat tracker.

The Ethereum Foundation recently outlined a one-year roadmap to integrate zkEVM proofs directly into mainnet block execution, replacing legacy mechanisms with ZK-based validation.

These developments show that the blockchain world is moving beyond proof-of-concept and toward production-grade, scalable, verifiable infrastructure—with Eigenlayer’s multichain verification acting as a key piece of that evolution.

By enabling AVS to deploy on multiple chains while still anchoring their trust to Ethereum, Eigenlayer is positioning itself as a core layer of decentralized infrastructure.

If successful, its multichain approach could unlock a new wave of Ethereum-secured services—across rollups, appchains, and emerging L2s—without the cost and congestion of the Ethereum mainnet.