Flashbots MEV-Relay

Architecture

The Flashbots MEV-Relay represents a specialized piece of blockchain infrastructure designed to mitigate the negative externalities of Miner Extractable Value (MEV). It functions as a communication channel, allowing searchers—entities identifying profitable transaction ordering opportunities—to directly propose transaction bundles to miners, bypassing the public mempool. This private ordering mechanism aims to reduce front-running and sandwich attacks, fostering a more predictable and efficient market for blockspace. Consequently, the Relay’s architecture introduces a layer of complexity to transaction lifecycle management, impacting consensus protocols and network security.