> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sprinter.tech/llms.txt
> Use this file to discover all available pages before exploring further.

# Supported Assets & Strategies

> Collateral assets, earn strategies, LTVs, and maintenance thresholds supported by Sprinter Credit

## Overview

Sprinter Credit supports a range of collateral assets and earn strategies. This page provides a quick reference for what's currently supported — you can always fetch the latest configuration programmatically via [`GET /credit/protocol`](/api-reference/sprinter/credit/get-credit-protocol-configuration).

## Supported Collateral

Collateral can be locked to open an overcollateralized credit line. Each asset has its own LTV based on its risk profile and liquidation characteristics — see [Risk Management](/sprinter-credit/risk-management) for how these are derived.

### Currently Live

| Asset               | Symbol      | Chain | LTV | Maintenance LTV | Collateral Tier |
| ------------------- | ----------- | ----- | :-: | :-------------: | --------------- |
| USDC                | `USDC`      | Base  | 90% |      92.5%      | Raw stablecoin  |
| Gauntlet USDC Prime | `gtUSDCp`   | Base  | 75% |       80%       | Stable vault    |
| Superform USDC      | `superUSDC` | Base  | 70% |       75%       | USDC SuperVault |
| yoUSDC              | `yoUSD`     | Base  | 70% |       80%       | Stable vault    |
| yoBTC               | `yoBTC`     | Base  | 55% |       70%       | Volatile vault  |

<Info>
  LTV values are returned by the API as basis points (e.g. `9000` = 90%). A `null` LTV means the asset is accepted as collateral but parameters are being finalized.
</Info>

### Collateral Tier Reference

All supported collateral falls into one of these tiers. LTV and maintenance thresholds are set per tier based on the [MPOR-driven risk framework](/sprinter-credit/risk-management#the-approach-mpor-driven-parameters).

| Tier              | Examples        | LTV | Maintenance LTV | Liquidation Bonus |
| ----------------- | --------------- | :-: | :-------------: | :---------------: |
| Raw stablecoin    | USDC            | 90% |      92.5%      |         1%        |
| Stable vault      | gtUSDCp, yoUSDC | 75% |       80%       |         6%        |
| USDC SuperVault   | superUSDC       | 70% |       75%       |         6%        |
| Volatile vault    | yoBTC           | 55% |       70%       |         8%        |
| Raw volatile      | ETH, WBTC       | 80% |       85%       |         5%        |
| Volatile DEX-swap | stETH, cbETH    | 75% |       82%       |         5%        |
| Volatile vault    | yoETH           | 65% |       75%       |         6%        |

<Tip>
  New collateral assets can be onboarded through a structured assessment process covering audit history, oracle availability, and liquidation depth. See [Getting Your Collateral Accepted](/sprinter-credit/risk-management#getting-your-collateral-accepted).
</Tip>

## Earn Strategies

Earn strategies allow collateral to generate yield while it backs a credit line. When locking collateral, pass the `earn` parameter to [`/lock`](/api-reference/sprinter/credit/calldata-to-lock-asset-as-collateral) to auto-wrap into a vault.

### Currently Live

| Strategy ID           | Name                | Protocol    | Curator   | Underlying | Chain | Vault Type | Risk Score |
| --------------------- | ------------------- | ----------- | --------- | ---------- | ----- | ---------- | :--------: |
| `gauntlet-usdc-prime` | Gauntlet USDC Prime | Morpho V1   | Gauntlet  | USDC       | Base  | ERC-4626   |      5     |
| `superform-usdc`      | superUSDC           | Superform   | Superform | USDC       | Base  | ERC-7540   |      7     |
| `yo-usdc`             | yoUSDC              | Yo Protocol | Yo        | USDC       | Base  | ERC-7540   |      5     |
| `yo-btc`              | yoBTC               | Yo Protocol | Yo        | BTC        | Base  | ERC-7540   |      5     |

Use the strategy ID as the `earn` parameter when locking collateral:

```bash theme={null}
curl -X GET 'https://api.sprinter.tech/credit/v2/accounts/0xUSER/assets/usdc/lock?amount=1000000000&earnAsset=0xCOLLATERAL&earn=gauntlet-usdc-prime'
```

<Info>
  Risk scores range from 0–10. Lower scores indicate lower risk. Strategy availability and yields change over time — always check [`GET /credit/protocol`](/api-reference/sprinter/credit/get-credit-protocol-configuration) for the current list.
</Info>

## Credit Asset

Sprinter Credit currently issues credit in **USDC** on **Base** (`eip155:8453`).

| Asset | Chain | Credit Hub Address                           |
| ----- | ----- | -------------------------------------------- |
| USDC  | Base  | `0xb5cf2A13E9aaE413E780379667274626fa9D49f6` |

## Fetching Live Configuration

All of the above is available programmatically:

```bash theme={null}
curl -X GET https://api.sprinter.tech/credit/protocol
```

The response contains per-chain data including:

* `collateral` — supported collateral assets with LTVs and escrow addresses
* `strategies` — earn vault strategies with protocol, curator, and vault details
* `creditHubs` — credit hub addresses and supported credit assets

See the [API reference](/api-reference/sprinter/credit/get-credit-protocol-configuration) for the full response schema.

## Related

<CardGroup cols={3}>
  <Card title="Risk Management" icon="shield-halved" href="/sprinter-credit/risk-management">
    MPOR framework, collateral tiers, and concentration limits.
  </Card>

  <Card title="Credit Engine" icon="gear" href="/sprinter-credit/credit-engine">
    LTV mechanics, health factor, and liquidations.
  </Card>

  <Card title="Protocol Config API" icon="bolt" href="/api-reference/sprinter/credit/get-credit-protocol-configuration">
    Live protocol configuration endpoint.
  </Card>
</CardGroup>