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

# Wrapper Collect Interest

> Low-level instruction to collect interest and unwrap to base asset atomically

# createWrapperCollectInterestInstruction

Builds a raw instruction that collects accrued interest from a yield position and unwraps the SY to the base asset in a single atomic operation.

## Usage

```typescript theme={null}
import { createWrapperCollectInterestInstruction } from "@exponent-labs/exponent-sdk/client/core";
import { PublicKey } from "@solana/web3.js";

const ix = createWrapperCollectInterestInstruction(
  {
    claimer: wallet.publicKey,
    authority: vaultAuthority,
    vault: vaultAddress,
    addressLookupTable: vaultLookupTable,
    escrowSy: vaultEscrowSy,
    syProgram: syProgramId,
    tokenProgram: TOKEN_PROGRAM_ID,
    yieldPosition: userYieldPositionPda,
    tokenSyDst: userSyTokenAccount,
    treasurySyTokenAccount: treasurySyAccount,
    eventAuthority: eventAuthorityPda,
    program: EXPONENT_CORE_PROGRAM_ID,
  },
  {
    redeemSyAccountsLength: 0,
  }
);
```

## Accounts

| Name                     | Type        | Signer | Writable | Description                      |
| ------------------------ | ----------- | ------ | -------- | -------------------------------- |
| `claimer`                | `PublicKey` | Yes    | Yes      | The user collecting interest     |
| `authority`              | `PublicKey` | No     | Yes      | Vault authority PDA              |
| `vault`                  | `PublicKey` | No     | Yes      | Vault account                    |
| `addressLookupTable`     | `PublicKey` | No     | No       | Vault address lookup table       |
| `escrowSy`               | `PublicKey` | No     | Yes      | Vault SY escrow account          |
| `syProgram`              | `PublicKey` | No     | No       | SY program                       |
| `tokenProgram`           | `PublicKey` | No     | No       | SPL Token program                |
| `yieldPosition`          | `PublicKey` | No     | Yes      | User's yield position PDA        |
| `tokenSyDst`             | `PublicKey` | No     | Yes      | Destination SY token account     |
| `treasurySyTokenAccount` | `PublicKey` | No     | Yes      | Treasury SY token account (fees) |
| `eventAuthority`         | `PublicKey` | No     | No       | Event authority PDA              |
| `program`                | `PublicKey` | No     | No       | Exponent Core program            |

## Args

| Name                     | Type     | Description                                        |
| ------------------------ | -------- | -------------------------------------------------- |
| `redeemSyAccountsLength` | `number` | Number of remaining accounts for SY redemption CPI |

## Returns

`TransactionInstruction` — a transaction instruction ready to be added to a transaction.