Kohaku SDK integrates ERC-4337 relaying for Railgun, with ongoing support for Tornado Cash and Privacy Pools.
Foresight News reported that Ethereum Foundation Kohaku Initiative researcher kassandraETH posted on Twitter revealing that kohaku-eth/railgun v0.0.1-alpha.21 has enabled relaying Railgun transactions through the ERC-4337 mempool, allowing users to benefit from privacy protection without relying on protocol-specific relay infrastructure. Support for Tornado Cash and Privacy Pools is in progress. Production-level wallets such as Ambire are preparing for integration, and related demonstrations are scheduled to debut at Berlin Blockchain Week.
Kohaku is an internal privacy infrastructure research project of the Ethereum Foundation, focused on the wallet access layer. Its goal is to embed privacy pool protocols such as Tornado Cash, Railgun, and Privacy Pools into the wallet layer in a non-custodial manner, leveraging new tools such as EIP-7702 to reduce integration complexity for developers and users.
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