Ethereum Foundation's Kohaku Launches SDK for Wallet-Level Privacy Integration

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Ethereum ecosystem news: The Ethereum Foundation’s Kohaku Initiative has launched an SDK that enables privacy protocols such as Railgun, Tornado Cash, and Privacy Pools to be integrated directly into wallet interfaces. The tool routes all privacy transactions through the 4337 mempool, eliminating the need for centralized relayers. Private transactions using 4337 mempool relaying are already live, while Tornado Cash and Privacy Pools are under development. A CLI-based wallet demo is available, with Ambire and others working on integrations. Browser extension wallets and support for post-quantum accounts, multisignature, and hardware wallets are also in development.

ChainCatcher report, according to The Defiant, the Kohaku Initiative under the Ethereum Foundation has released a software development kit (SDK) enabling direct integration of privacy protocols such as Railgun, Tornado Cash, and Privacy Pools into wallet interfaces without intermediaries. The SDK allows all privacy protocol transactions to be routed through the 4337 mempool, enabling user-controlled privacy without reliance on centralized relays. The team has already implemented private transactions with 4337 mempool relaying; integration with Tornado Cash and Privacy Pools is currently in development. Kohaku aims to make end-to-end privacy the default option for Ethereum users by abstracting the complexity of interacting with privacy protocols. Developers have created a CLI-based wallet demo, and wallets such as Ambire are in the process of integrating the SDK, while a browser extension wallet is also under development. Kohaku is additionally working on post-quantum accounts, multi-signature support, and hardware wallet compatibility.

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