SuperKat is a vault protocol on the Katana blockchain, built as a fork of the heavily audited Euler Earn codebase.
It brings the robust yield-aggregator architecture of Euler to Katana, enabling users to deposit assets into managed vaults with a single entry point and earn optimized yield across underlying strategies.
SuperKat allows users to deposit an underlying asset into a vault, receive vault shares in return, and benefit from yield earned through a pre-approved set of strategy vaults.
The architecture is built on the ERC-4626 vault standard (or its Katana equivalent) and inherits its structure from the audited Euler Earn contracts.
- Single-asset vaults – deposit one asset, receive vault shares.
- Curator/allocator model – separates strategic oversight and execution.
- Risk-managed strategy caps – control exposure per strategy.
- Transparent performance fee model – fees apply to yield, not principal.
- Instant withdrawals.
Each SuperKat vault includes distinct governance roles with clearly defined responsibilities:
| Role | Description |
|---|---|
| Owner | Primary admin (often a multisig); sets curator, allocator, guardian, fee, etc. |
| Curator | Selects strategy vaults, sets per-strategy caps, manages the strategy universe. |
| Allocator | Executes deposits and withdrawals across strategies, maintains vault balance. |
| Guardian (optional) | Can pause or veto critical actions for depositor protection. |
| Fee Recipient | Receives performance fees on yield (if applicable). |
- User deposits an approved asset into a SuperKat vault.
- Vault mints shares to the depositor’s address (representing claim on underlying + yield).
- Assets are allocated among pre-approved strategy vaults up to configured caps.
- Yields from strategies increase the vault’s share price.
- Users can withdraw anytime, redeeming shares for underlying assets.
- Optional performance fees are taken on accrued yield (not on principal).
By forking Euler Earn, SuperKat inherits a battle-tested and audited vault framework.
Key inherited benefits include:
- A modular and production-proven vault architecture.
- Separation of curator and allocator roles for governance clarity.
- Supply/withdraw queues and caps for safe liquidity management.
- Transparent fee accounting and yield accrual logic.
- Compatibility with ERC-4626 for easy composability.
- Strategy risk: Vault yield depends on approved strategies and allocations.
- Liquidity risk: Withdrawals may be delayed during low liquidity conditions.
- Governance risk: Owner, curator, and allocator roles have administrative control.
- Smart contract risk: Although forked from audited Euler Earn, on-chain risk remains.
This codebase is forked from the audited Euler Earn repository, a proven and security-reviewed vault system.
SuperKat retains the architectural design and safety mechanisms from Euler Earn, adapted for Katana chain deployment by the Superlend team.
A list of audits can be found here