Skip to main contentIntroduction
What is Rosetta
Rosetta is yield infrastructure for Hyperliquid, built to make on-chain yield transparent and actionable.
It consists of two core components:
Indexer: A block-level data infrastructure that tracks lending markets, vaults, and yields continuously. Computes state every block for accurate APY reporting, utilization tracking, and liquidity monitoring.
Yield Router: A non-custodial allocation system that routes capital across vaults based on real-time yield data, user-defined policies, and cost-aware, lightning fast execution logic.
The Indexer provides the data layer. The Yield Router consumes that data to make allocation decisions and execute them through user-controlled smart accounts. Together, they form infrastructure that applications (including the Router itself) are built on.
Principles
Non-custodial: Users operate through smart accounts (sub-accounts) that they control. Rosetta orchestrates deposits and rebalances within these accounts, but withdrawals can only be sent to the user’s main wallet. Funds never sit in Rosetta’s custody.
Block-level precision: Interest accrues every block. The Indexer reflects this by computing vault and market states at block cadence, enabling accurate yield comparisons and APY reporting.
User-controlled policies: Users define which vaults and assets the Router can access. These policies are stored on-chain and enforced programmatically. Changing them requires the user’s signature.
Transparent by default: Every yield figure, allocation decision, and rebalancing action is derived from on-chain data and verifiable. Users see where returns come from, not just what they are.
Fully automated: Once policies are set, the Router handles allocation and rebalancing without manual intervention. Users define the rules; Rosetta executes within them.
Sponsored execution: Rosetta covers all gas costs for deposits, withdrawals, and rebalancing. The APY users see is the APY they earn. No hidden transaction costs eating into returns. 
