Ops Development & AI Practice

Jul 19, 2025 · Blockchain

How Ethereum Execution and Consensus Clients Work Together After The Merge

This article explains the post‑Merge Ethereum architecture, detailing the distinct roles of Execution Clients (EL) and Consensus Clients (CL), their core responsibilities, popular implementations, the Engine API communication process, and why modular client design improves security, efficiency, and upgradeability.