TechFlow News: On May 26, according to The Defiant, the Ethereum Foundation’s Kohaku Initiative released an SDK designed to integrate privacy protocols into Ethereum wallets. A functional 4337 mempool relay supporting private transactions is now implemented in version v0.0.1-alpha.21 of the Kohaku-eth/Railgun integration.
This SDK aims to integrate shielded-pool protocols—including Railgun, Tornado Cash, and Privacy Pools—directly into wallet interfaces, thereby reducing reliance on centralized relayer infrastructure. Kohaku has also demonstrated a CLI-based wallet and is advancing integrations with production-grade wallets such as Ambire, while simultaneously developing post-quantum accounts, multi-signature support, and hardware wallet compatibility.
