Yield Sources

Yield sources are the underlying strategies a portfolio wallet can allocate into. A wallet strategy is a weighted allocation across one or more yield sources.

Available yield sources

Fetch the live catalog with GET /v2/wallets/yield-sources:

curl -X GET "$BASE_URL/v2/wallets/yield-sources" \
  -H "Authorization: Bearer $API_TOKEN"

{
  "yieldSources": [
    {
      "id": "syrup-usdc",
      "name": "Syrup USDC",
      "description": "USDC lending through Maple Finance's Syrup protocol.",
      "apyBps": 453,
      "estimatedWithdrawalTime": "PT24H"
    },
    {
      "id": "morpho-gauntlet-usdc",
      "name": "Morpho Gauntlet USDC Prime",
      "description": "Overcollateralized lending via a Morpho ERC-4626 USDC vault.",
      "apyBps": 472,
      "estimatedWithdrawalTime": "PT0H"
    },
    {
      "id": "morpho-steakhouse-usdc",
      "name": "Morpho Steakhouse USDC Prime",
      "description": "Overcollateralized lending via a Morpho ERC-4626 USDC vault.",
      "apyBps": 468,
      "estimatedWithdrawalTime": "PT0H"
    },
    {
      "id": "morpho-smokehouse-usdc",
      "name": "Morpho Smokehouse USDC",
      "description": "Overcollateralized lending via Morpho Smokehouse USDC vault on Ethereum.",
      "apyBps": 500,
      "estimatedWithdrawalTime": "PT0H"
    },
    {
      "id": "morpho-august-usdc-v2",
      "name": "Morpho August USDC V2",
      "description": "Overcollateralized lending via Morpho August USDC V2 vault.",
      "apyBps": 482,
      "estimatedWithdrawalTime": "PT0H"
    },
    {
      "id": "morpho-gauntlet-usdc-base",
      "name": "Morpho Gauntlet USDC Prime (Base)",
      "description": "Overcollateralized lending via Morpho Gauntlet USDC Prime vault on Base.",
      "apyBps": 498,
      "estimatedWithdrawalTime": "PT0H"
    },
    {
      "id": "morpho-steakhouse-usdc-base",
      "name": "Morpho Steakhouse Prime USDC (Base)",
      "description": "Overcollateralized lending via Morpho Steakhouse Prime USDC vault on Base.",
      "apyBps": 496,
      "estimatedWithdrawalTime": "PT0H"
    }
  ]
}

Example APYs above are illustrative. Always use GET /v2/wallets/yield-sources for the current live catalog and rates.

Yield source ID	Liquidity	Description
`syrup-usdc`	Typically within 24h (`PT24H`)	Overcollateralized USDC lending via Maple Finance’s Syrup.
`morpho-gauntlet-usdc`	Instant (`PT0H`)	ERC-4626 lending vault exposure via Morpho’s Gauntlet USDC Prime vault.
`morpho-steakhouse-usdc`	Instant (`PT0H`)	ERC-4626 lending vault exposure via Morpho’s Steakhouse USDC Prime vault.
`morpho-smokehouse-usdc`	Instant (`PT0H`)	ERC-4626 lending vault exposure via Morpho’s Smokehouse USDC vault on Ethereum.
`morpho-august-usdc-v2`	Instant (`PT0H`)	ERC-4626 lending vault exposure via Morpho’s August USDC V2 vault on Ethereum.
`morpho-gauntlet-usdc-base`	Instant (`PT0H`)	ERC-4626 lending vault exposure via Morpho’s Gauntlet USDC Prime vault on Base.
`morpho-steakhouse-usdc-base`	Instant (`PT0H`)	ERC-4626 lending vault exposure via Morpho’s Steakhouse Prime USDC vault on Base.

Use id as the yieldSourceId when creating a wallet or updating a strategy.

Yield source details

Syrup USDC


Yield source ID	`syrup-usdc`
Type	Overcollateralized lending
Chain	Ethereum
Liquidity	Typically within 24 hours
Provider page	Maple Syrup

Syrup USDC is an overcollateralized lending product from Maple Finance. Deposits and withdrawals are handled through an ERC-4626 vault, but withdrawals can still be queue-based depending on protocol liquidity.

Morpho Gauntlet USDC Prime


Yield source ID	`morpho-gauntlet-usdc`
Type	Overcollateralized lending
Chain	Ethereum
Liquidity	Instant
Provider page	Morpho vault page

This source allocates into the Morpho Gauntlet USDC Prime ERC-4626 vault. Ground values the position from onchain convertToAssets() reads and computes the displayed APY from trailing NAV/share history.

Morpho Steakhouse USDC Prime


Yield source ID	`morpho-steakhouse-usdc`
Type	Overcollateralized lending
Chain	Ethereum
Liquidity	Instant
Provider page	Morpho vault page

This source allocates into the Morpho Steakhouse USDC Prime ERC-4626 vault. It shares the same portfolio-wallet mechanics as Gauntlet but tracks a separate underlying Morpho vault.

Morpho Smokehouse USDC


Yield source ID	`morpho-smokehouse-usdc`
Type	Overcollateralized lending
Chain	Ethereum
Liquidity	Instant
Provider page	Morpho vault page

This source allocates into the Morpho Smokehouse USDC ERC-4626 vault on Ethereum. It follows the same synchronous redeem model as the other Morpho vaults.

Morpho August USDC V2


Yield source ID	`morpho-august-usdc-v2`
Type	Overcollateralized lending
Chain	Ethereum
Liquidity	Instant

This source allocates into the Morpho August USDC V2 ERC-4626 vault on Ethereum. It follows the same synchronous redeem model as the other Morpho vaults.

Morpho Gauntlet USDC Prime (Base)


Yield source ID	`morpho-gauntlet-usdc-base`
Type	Overcollateralized lending
Chain	Base
Liquidity	Instant
Provider page	Morpho vault page

This source allocates into the Morpho Gauntlet USDC Prime ERC-4626 vault on Base. Withdrawals unwind on Base before any later bridge leg to the requested destination.

Morpho Steakhouse Prime USDC (Base)


Yield source ID	`morpho-steakhouse-usdc-base`
Type	Overcollateralized lending
Chain	Base
Liquidity	Instant
Provider page	Morpho vault page

This source allocates into the Morpho Steakhouse Prime USDC ERC-4626 vault on Base. It shares the same customer-facing semantics as the other Morpho vaults, but the position lives on Base rather than Ethereum.

Rate semantics

apyBps is an annualized yield figure in basis points.
syrup-usdc uses Maple’s Syrup rate feed.
morpho-gauntlet-usdc, morpho-steakhouse-usdc, morpho-smokehouse-usdc, morpho-august-usdc-v2, morpho-gauntlet-usdc-base, and morpho-steakhouse-usdc-base use trailing APR derived from their ERC-4626 NAV/share history.
All rates are variable and may change over time.

NAV freshness

syrup-usdc is valued from an onchain ERC-4626 convertToAssets() read.
morpho-gauntlet-usdc, morpho-steakhouse-usdc, morpho-smokehouse-usdc, morpho-august-usdc-v2, morpho-gauntlet-usdc-base, and morpho-steakhouse-usdc-base are also valued from onchain ERC-4626 convertToAssets() reads.

`estimatedWithdrawalTime`

estimatedWithdrawalTime is an ISO 8601 duration representing yield-source unwind time, not an SLA.

Duration	Meaning
`PT0H`	Immediate
`PT24H`	Up to roughly 24 hours

Use POST /v2/wallets/:id/withdrawal-preview when you need wallet-specific withdrawal timing rather than source-level estimates.

Coming Soon

These are yield sources we have not yet integrated into Ground, but are actively tracking for future support.

Aave USDC


Type	Overcollateralized lending
Chain	Ethereum
Liquidity	Variable; withdrawals depend on available pool liquidity
Provider page	Aave USDC reserve

Aave USDC is a large onchain lending market where USDC suppliers earn variable yield while retaining withdrawal access when reserve liquidity is available.

Aave USDT


Type	Overcollateralized lending
Chain	Ethereum
Liquidity	Variable; withdrawals depend on available pool liquidity
Provider page	Aave USDT reserve

Aave USDT is the USDT version of Aave’s Ethereum lending market, offering variable yield with withdrawals limited by pool liquidity and collateral constraints.

Superstate USTB


Type	Tokenized US Treasury bills
Chain	Ethereum, Solana, Plume
Liquidity	Each market day
Provider page	Superstate USTB

USTB gives eligible investors tokenized exposure to short-duration US Treasury bills with subscriptions and redemptions facilitated in USD or USDC.

Superstate USCC


Type	Tokenized crypto carry fund
Chain	Ethereum, Solana, Plume
Liquidity	T+1 pricing, T+2 token or redemption settlement
Provider page	Superstate USCC

USCC gives eligible investors tokenized exposure to a managed crypto basis and carry strategy rather than a simple cash-equivalent treasury fund.

OpenTrade XHYC (High Yield Corporate Bond Vault)


Type	ETF-backed corporate credit
Chain	Avalanche, Plume
Liquidity	Anytime, repaid T+1
Provider page	OpenTrade High Yield Corporate Bond Vault

XHYC is an OpenTrade vault backed by a short-duration high-yield corporate bond ETF, aiming to offer higher credit yield without a fixed lockup.

Kamino Elemental USDC Optimizer


Type	Automated USDC yield optimizer
Chain	Solana
Liquidity	Onchain vault liquidity
Provider page	Kamino Elemental USDC Optimizer

Kamino’s Elemental USDC Optimizer is a Solana-native USDC strategy designed to automate routing into a managed yield opportunity instead of requiring manual position management.

OpenTrade XRV+ (Rates+ Vaults)


Type	Structured rates and private credit
Chain	Not yet publicly disclosed on the provider page
Liquidity	Not yet publicly disclosed on the provider page
Provider page	OpenTrade product suite

XRV+ is OpenTrade’s higher-yield rates product family focused on assets such as commercial paper and commodities trade finance rather than only short-term government paper.

Ondo OUSG


Type	Tokenized US Treasuries
Chain	Ethereum, Solana, Polygon, XRPL
Liquidity	24/7 instant mint and redemption
Provider page	Ondo Nexus / OUSG liquidity overview

OUSG is Ondo’s flagship tokenized US Treasury product built for institutional-grade cash management with around-the-clock mint and redemption rails.

Etherfuse Bonds


Type	Tokenized sovereign bonds
Chain	Solana, Polygon, Stellar
Liquidity	Varies by bond series and market venue
Provider page	Etherfuse Bonds

Etherfuse turns government bond exposure into onchain tokens such as USTRY, TESOURO, CETES, and other local-market bond series.

JitoSOL


Type	Liquid staking
Chain	Solana
Liquidity	Liquid token with secondary-market access and native unstake flows
Provider page	JitoSOL overview

JitoSOL lets users keep Solana staking exposure liquid and DeFi-usable while still earning staking and MEV-linked rewards.

dSOL


Type	Liquid staking
Chain	Solana
Liquidity	Liquid token within Drift’s trading and earn stack
Provider page	Drift v3 overview

dSOL is Drift’s liquid staking token, designed to stay usable as a yield-bearing asset across Drift’s trading and borrow-lend product surface.

stETH


Type	Liquid staking
Chain	Ethereum
Liquidity	Liquid token with daily rebasing rewards and broad DeFi liquidity
Provider page	What is stETH?

stETH is Lido’s liquid version of staked ETH, letting users keep Ethereum staking exposure while continuing to use the asset across DeFi.

Katana vbUSDC yVault


Type	Yield-bearing vault
Chain	Katana
Liquidity	Onchain vault liquidity
Provider page	Katana vbUSDC vault

Katana’s vbUSDC vault is built on the network’s Vault Bridge model to make bridged USDC productive as soon as it lands on Katana.

Katana vbUSDT yVault


Type	Yield-bearing vault
Chain	Katana
Liquidity	Onchain vault liquidity
Provider page	Katana vbUSDT vault

Katana’s vbUSDT vault is the USDT counterpart to vbUSDC, packaging bridged stablecoin liquidity into a yield-bearing Katana vault.

Getting Started

Wallet Lifecycle

Approvals

Monitoring & Webhooks

Available yield sources

Yield source details

Syrup USDC

Morpho Gauntlet USDC Prime

Morpho Steakhouse USDC Prime

Morpho Smokehouse USDC

Morpho August USDC V2

Morpho Gauntlet USDC Prime (Base)

Morpho Steakhouse Prime USDC (Base)

Rate semantics

NAV freshness

`estimatedWithdrawalTime`

Coming Soon

Aave USDC

Aave USDT

Superstate USTB

Superstate USCC

OpenTrade XHYC (High Yield Corporate Bond Vault)

Kamino Elemental USDC Optimizer

OpenTrade XRV+ (Rates+ Vaults)

Ondo OUSG

Etherfuse Bonds

JitoSOL

dSOL

stETH

Katana vbUSDC yVault

Katana vbUSDT yVault

Getting Started

Wallet Lifecycle

Approvals

Monitoring & Webhooks

​Available yield sources

​Yield source details

​Syrup USDC

​Morpho Gauntlet USDC Prime

​Morpho Steakhouse USDC Prime

​Morpho Smokehouse USDC

​Morpho August USDC V2

​Morpho Gauntlet USDC Prime (Base)

​Morpho Steakhouse Prime USDC (Base)

​Rate semantics

​NAV freshness

​estimatedWithdrawalTime

​Coming Soon

​Aave USDC

​Aave USDT

​Superstate USTB

​Superstate USCC

​OpenTrade XHYC (High Yield Corporate Bond Vault)

​Kamino Elemental USDC Optimizer

​OpenTrade XRV+ (Rates+ Vaults)

​Ondo OUSG

​Etherfuse Bonds

​JitoSOL

​dSOL

​stETH

​Katana vbUSDC yVault

​Katana vbUSDT yVault

Available yield sources

Yield source details

Syrup USDC

Morpho Gauntlet USDC Prime

Morpho Steakhouse USDC Prime

Morpho Smokehouse USDC

Morpho August USDC V2

Morpho Gauntlet USDC Prime (Base)

Morpho Steakhouse Prime USDC (Base)

Rate semantics

NAV freshness

`estimatedWithdrawalTime`

Coming Soon

Aave USDC

Aave USDT

Superstate USTB

Superstate USCC

OpenTrade XHYC (High Yield Corporate Bond Vault)

Kamino Elemental USDC Optimizer

OpenTrade XRV+ (Rates+ Vaults)

Ondo OUSG

Etherfuse Bonds

JitoSOL

dSOL

stETH

Katana vbUSDC yVault

Katana vbUSDT yVault