Ethereum Foundation Proposes Wallet-Driven Interop Layer to Unify Layer 2 Rollups

Overview

• The Ethereum Interop Layer would place cross-L2 transaction logic inside user wallets to create a single-network experience.
• Users could execute token transfers, swaps, and NFT mints across rollups with one click without selecting chains or using bridges.
• The design adheres to the Trustless Manifesto with a focus on self-custody, censorship resistance, privacy, and on-chain verifiability.
• Developers would rely on wallet-level interoperability that eliminates bespoke app integrations and makes dapps multichain-native by default.
• The Account Abstraction team called on wallet providers, dapp builders, and rollup operators to collaborate as the proposal advances toward implementation.