# Batch Size Limits - incomplete

The INTMAX Client SDK enforces batch size limits for certain operations to ensure optimal performance and prevent resource exhaustion:

#### Transaction Broadcasting <a href="#transaction-broadcasting" id="transaction-broadcasting"></a>

* **Maximum transactions per `broadcastTransaction` call**: 63 transactions
* This limit applies when batching multiple transfers in a single transaction broadcast

#### Data Fetching Operations <a href="#data-fetching-operations" id="data-fetching-operations"></a>

* **Maximum items per internal API request**: 64 items
* This limit applies to internal pagination used by:
  * `fetchDeposits()`
  * `fetchTransfers()`
  * `fetchTransactions()`
* The SDK automatically handles pagination, so you don't need to manage this limit when using high-level APIs
* Specifying a value greater than 64 will result in an error: `Limit exceeds max batch size` or `Batch size exceeds maximum limit of 64`

### Fee <a href="#fee" id="fee"></a>

Please refer to the following for details about the fees.

* [Q. How are transaction fees determined on the INTMAX network?](https://docs.network.intmax.io/developers-hub/intmax-client-sdk/faq#q-how-are-transaction-fees-determined-on-the-intmax-network)
* [Q. What is the collateral fee?](https://docs.network.intmax.io/developers-hub/intmax-client-sdk/faq#q-what-is-the-collateral-fee)

**`getTransferFee`**

The getTransferFee function estimates the transaction fee required to perform a token transfer within the INTMAX network.

```
const trasnferFee: FeeResponse = await client.getTransferFee();

// example
{
  beneficiary: 'T7iFM2BEtd3JxkaUNfZge83CtAqhdgcjGgJpiityyrYMW739SyyDYF5bnR8fkSG3G9YT4VZtur3hKhvuDm5ZLneYLy8j7gG',
  fee: {
    amount: "2000000000000",
    token_index: 0,
  },
  collateral_fee: {
    amount: "20000000000000",
    token_index: 0,
  }
}
```

**`getWithdrawalFee`**

This function estimates the transaction fee required to perform a token withdrawal within the INTMAX network.

```
const withdrawalFee: FeeResponse = await client.getWithdrawalFee();

// example
{
  beneficiary: 'T7v5ya7osVxjhu35X8hRMFD2wByq8tF2Pjkag2K2NfNMX8ZdUfiAD5pR2M4bQf8XgTAbAYzyLX6AMGm3Vj78oYNLH5PhGMm',
  fee: {
    amount: "32500000000000",
    token_index: 0,
  },
  collateral_fee: undefined
}
```


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