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

# Spark

> Access Spark lending markets and savings vaults for yield

## What this yield is

* **Protocol**: Spark Protocol (SparkLend + Spark Savings)
* **Asset**: DAI, USDC, WETH, USDT, sDAI, wstETH, and more
* **Receipt token**: spTokens (e.g., spUSDC, spETH)
* **Additional rewards**: Spark Points
* **Network**: Ethereum

<Note>
  Spark provides two complementary yield products: SparkLend markets for lending/borrowing and Spark Savings Vaults (V2) for simplified yield access anchored to the Sky Savings Rate.
</Note>

## Required inputs

| Parameter | Description                 |
| --------- | --------------------------- |
| `yieldId` | The specific Spark yield ID |
| `address` | User's wallet address       |
| `amount`  | Amount to deposit           |

## Spark products

<Tabs>
  <Tab title="SparkLend">
    **Money market lending**

    * Supply assets to earn interest from borrowers
    * Supports DAI, USDC, ETH, wstETH, and more
    * Dynamic interest rates based on utilization
    * Immediate yield accrual
  </Tab>

  <Tab title="Spark Savings">
    **ERC-4626 yield vaults**

    * Deposit USDC, ETH, or USDT
    * Receive spTokens representing your share
    * Yield from Spark Liquidity Layer + Sky Savings Rate
    * Earn Spark Points on top of native yield
  </Tab>
</Tabs>

## Actions & lifecycle

<Tabs>
  <Tab title="Enter">
    **Action**: Deposit assets into Spark

    * Supply the underlying asset
    * Receive position/share token
    * Begin earning yield immediately
  </Tab>

  <Tab title="Exit">
    **Action**: Withdraw assets

    * Redeem tokens for underlying assets
    * Receive principal plus accrued interest
    * Instant withdrawal
  </Tab>
</Tabs>

## Example flow

<Steps>
  <Step title="Get yield metadata">
    Fetch available Spark yields and their current rates.
  </Step>

  <Step title="Enter position">
    Call the enter action with your deposit amount.
  </Step>

  <Step title="Sign & submit">
    Sign the transaction and broadcast to the network.
  </Step>

  <Step title="Track balances">
    Monitor your position via the balances endpoint.
  </Step>
</Steps>

<CodeGroup>
  ```bash Get yield metadata theme={null}
  curl --request GET \
    --url https://api.yield.xyz/v1/yields/ethereum-usdc-sparklend \
    --header 'accept: application/json' \
    --header 'x-api-key: <API_KEY>'
  ```

  ```bash Enter position theme={null}
  curl --request POST \
    --url https://api.yield.xyz/v1/actions/enter \
    --header 'accept: application/json' \
    --header 'content-type: application/json' \
    --header 'x-api-key: <API_KEY>' \
    --data '{
      "yieldId": "ethereum-usdc-sparklend",
      "address": "0xYOUR_ADDRESS",
      "arguments": {
        "amount": "1000"
      }
    }'
  ```
</CodeGroup>

## Operational notes

<AccordionGroup>
  <Accordion title="Spark Points">
    Users who deposit into Spark Savings vaults earn Spark Points on top of native yield. Points accrue daily at varying rates:

    * ETH: 50,000 Spark Points per deposited ETH
    * USDC: 3 Spark Points per deposited USDC
    * USDT: 3 Spark Points per deposited USDT
  </Accordion>

  <Accordion title="No pending actions">
    Spark yields have no pending actions. Rewards accrue automatically and are reflected in the token value.
  </Accordion>

  <Accordion title="Instant withdrawals">
    Both SparkLend and Spark Savings support instant withdrawals at any time.
  </Accordion>
</AccordionGroup>

## Yield IDs for this protocol

<AccordionGroup>
  <Accordion title="Show Spark yield IDs">
    ### Spark Savings (V2 Vaults)

    | Yield ID                                                                   | Name                |
    | -------------------------------------------------------------------------- | ------------------- |
    | ethereum-usdc-spusdc-0x28b3a8fb53b741a8fd78c0fb9a6b2393d896a43d-4626-vault | Spark USDC Vault V2 |
    | ethereum-usdt-spusdt-0xe2e7a17dff93280dec073c995595155283e3c372-4626-vault | Spark USDT Vault V2 |
    | ethereum-weth-speth-0xfe6eb3b609a7c8352a241f7f3a21cea4e9209b8f-4626-vault  | Spark ETH Vault V2  |

    ### SparkLend

    | Yield ID                  | Name                  |
    | ------------------------- | --------------------- |
    | ethereum-dai-sparklend    | DAI Sparklend Pool    |
    | ethereum-sdai-sparklend   | sDAI Sparklend Pool   |
    | ethereum-usdc-sparklend   | USDC Sparklend Pool   |
    | ethereum-weth-sparklend   | WETH Sparklend Pool   |
    | ethereum-wsteth-sparklend | wstETH Sparklend Pool |
    | ethereum-wbtc-sparklend   | WBTC Sparklend Pool   |
    | ethereum-reth-sparklend   | rETH Sparklend Pool   |
    | ethereum-usdt-sparklend   | USDT Sparklend Pool   |
    | ethereum-weeth-sparklend  | weETH Sparklend Pool  |
    | ethereum-cbbtc-sparklend  | cbBTC Sparklend Pool  |
    | ethereum-susds-sparklend  | sUSDS Sparklend Pool  |
  </Accordion>
</AccordionGroup>

## See also

<CardGroup cols={2}>
  <Card title="Quickstart" icon="rocket" href="/documentation/getting-started/quickstart">
    Get started with Yield.xyz
  </Card>

  <Card title="Actions & Balances" icon="arrow-right-arrow-left" href="/documentation/core-concepts/actions-and-transactions">
    Understand how actions work
  </Card>
</CardGroup>