Lido, Ethereum's largest liquid staking protocol, has officially launched stVaults on the Ethereum mainnet, The Block reported on Friday.

stVaults is a smart-contract component that provides user-configurable customised staking structures in a decentralised environment. It was first introduced in February 2025 as part of the Lido V3 upgrade.

The Block said testing was completed over a year with participation from major validators including Chorus One and P2P.org, as well as institutional investors, data companies and layer-2 projects. It said the service has opened to general users and partners.

The Block said the launch shifts Lido from a single-product provider to "shared modular infrastructure", enabling it to support diverse user needs within a single protocol framework.

Each stVault can stake ETH through selected node operators while also allowing access to Lido's liquidity token stETH, making it usable in decentralised finance.

Launch partners include node operators such as P2P.org, Chorus One and Centora, and institutional investors such as Solstice, Twinstake, Northstake and Everstake. Layer-2 project Linea launched a "native yield feature" that automatically stakes bridged ETH, while Nansen launched a strategy combining stVault-based staking with on-chain data and AI trading features.