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

# getMinimumMint

> Calculate expected vault shares for a given deposit amount

Calculates the expected vault shares a user will receive for a deposit. Uses the on-chain exchange rate from the Accountant contract.

## Import

```ts theme={null}
import { getMinimumMint } from "@paxoslabs/amplify-sdk";
```

## Usage

```ts theme={null}
import { getMinimumMint, YieldType } from "@paxoslabs/amplify-sdk";

const result = await getMinimumMint({
  yieldType: YieldType.CORE,
  chainId: 1,
  depositAssetAddress: "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48", // USDC
  depositAmount: "1000.0",
});

console.log(result.expectedShares); // bigint
console.log(result.exchangeRate);   // bigint
```

## Parameters

| Parameter             | Type        | Required | Description                                        |
| --------------------- | ----------- | -------- | -------------------------------------------------- |
| `yieldType`           | `YieldType` | Yes      | Yield strategy (`CORE`, `TREASURY`, or `FRONTIER`) |
| `chainId`             | `ChainId`   | Yes      | Blockchain network ID                              |
| `depositAssetAddress` | `Address`   | Yes      | Token contract address being deposited             |
| `depositAmount`       | `string`    | Yes      | Amount as decimal string (e.g., `"1000.0"`)        |

```ts theme={null}
interface GetMinimumMintParams {
  yieldType: YieldType;
  chainId: ChainId;
  depositAssetAddress: Address;
  depositAmount: string;
}
```

## Return Type

```ts theme={null}
interface MinimumMintResult {
  /** Expected vault shares to be minted */
  expectedShares: bigint;
  /** On-chain exchange rate from Accountant */
  exchangeRate: bigint;
  /** Vault share token decimals */
  shareDecimals: number;
  /** Deposit asset decimals */
  assetDecimals: number;
}
```

## Example: Display Expected Shares

```tsx theme={null}
import { getMinimumMint, YieldType } from "@paxoslabs/amplify-sdk";
import { formatUnits } from "viem";

const result = await getMinimumMint({
  yieldType: YieldType.CORE,
  chainId: 1,
  depositAssetAddress: "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
  depositAmount: "1000.0",
});

const sharesFormatted = formatUnits(result.expectedShares, result.shareDecimals);
console.log(`You will receive ~${sharesFormatted} vault shares`);
```

## Error Handling

| Error Message Pattern   | Description                 | Resolution                       |
| ----------------------- | --------------------------- | -------------------------------- |
| `"No vault found"`      | No vault matches parameters | Verify yieldType, asset, chainId |
| `"SDK not initialized"` | SDK not initialized         | Call `initAmplifySDK()` first    |

## Related

* [Deposit Workflow](/v0.4.2/intro/products/earn/developers/api/deposit-workflow) - Execute deposits
* [Concepts](/v0.4.2/intro/products/earn/developers/getting-started/concepts) - Shares vs assets