Vaults, Curators, and the Infrastructure Behind Fintech Earn Programs

As more fintechs and neobanks explore stablecoin yield, two terms are becoming increasingly important: vaults and curators.

A vault is the product layer where assets are deposited to earn yield. It packages a lending or allocation strategy into a usable structure that a fintech, platform, or end user can access.

A curator defines the vault's risk. That includes selecting markets, setting exposure parameters, shaping the liquidity profile, and determining how conservative or aggressive the strategy will be.

In simple terms:

Vault = product container
Curator = risk manager/strategy designer

This distinction matters because two vaults can both offer yield on the same asset, such as USDC, while carrying very different underlying exposures and risk assumptions.

How this differs across platforms

Different protocols structure this differently.

Aave can be understood as a more unified pool design in which the protocol sets parameters for the lending pool and its risk model. TownSquare on Monad follows a similar unified-pool approach.
Morpho can be understood as infrastructure that allows independent curators to build distinct vaults with different strategies and risk-return profiles. Morpho itself does not custody user funds and does not directly act as the risk manager for those vaults.
Euler sits between the two models. Its base lending markets are permissionless vaults that can be either actively governed by a risk curator or permanently ungoverned, and its Earn layer lets curators build allocation vaults on top, similar to Morpho.
Other lending protocols occupy their own points along this spectrum. Curvance uses auto-routing vaults where the protocol itself handles allocation across approved pools.

That modularity gives institutions more optionality but also places greater emphasis on evaluating who the curator is and how the vault is constructed. One nuance worth noting: on Morpho, the curator is often the vault deployer as well, so the two roles can collapse into a single entity in practice.

Curators

Examples of curators include:

These firms can differ meaningfully in how far out they go on the risk curve, what collateral exposures they allow, and how they balance liquidity versus yield.

Vault infrastructure

On the vault side, some firms specialize in building the vault technology itself rather than managing risk, although this can be more nuanced. Examples include:

These teams provide the smart contract architecture, accounting, and integration tooling that a vault runs on. A curator can then plug a strategy into that structure. Upshift, incubated by August, shows how the layers combine: it provides the vault platform, while named strategist firms manage allocations within each vault. On some protocols, like Morpho, the curator deploys and manages the vault directly, so one firm may play both roles. Understanding which parts of the stack a given provider actually controls is part of the diligence.

What this looks like on Monad

This infrastructure is also developing on Monad. Lending protocols available on Monad include Morpho, Aave, Euler, and Gearbox, as well as Monad-native protocols like Curvance, TownSquare, and Neverland. Curators are deploying too: Hyperithm runs a USDC vault on Monad today, and the MON vault that launched at mainnet was built by Mellow and operated by Steakhouse, a clean example of vault infrastructure and curation coming from two different firms. A great example of how this works together in practice is with the MetaMask Money Account.

The stack is also starting to compose. Pendle, now one of the largest protocols on Monad, enables vault positions like Upshift's earnAUSD to be converted into fixed-rate instruments, which can provide different rate structures for consumer-facing earn products.

Why this matters for neobank earn programs

For a neobank or fintech, vaults can act as the backend engine for an earn product.

The neobank still owns the user experience, customer relationship, and product distribution. But the yield-generating strategies can be implemented through an underlying vault, while the curator shapes the risk profile behind that strategy.

That means building an earn program is not just a question of headline APY. It is also a question of:

Who manages the strategy
What risks sit underneath the product
How liquidity is handled
How transparent the structure is
Whether the setup fits a consumer-facing financial product
Which chain it's on, since that determines liquidity depth, execution costs, and the ecosystem of curators and vaults available

As onchain financial infrastructure matures, this curator/vault stack is likely to become an important model for how stablecoin yield reaches mainstream users.