RIP-7755 is a standard for enabling cross-Layer 2 (L2) calls on Ethereum. It allows smart contracts on different L2 networks to communicate securely using Ethereum’s mainnet (L1) for verification. By improving interoperability and reducing fragmentation, RIP-7755 enhances scalability and seamless communication across Ethereum’s L2 networks.

Cross-L2 Actions, built by Eco Inc., is a permissionless, trust-neutral protocol for facilitating cross-rollup transactions.