> For the complete documentation index, see [llms.txt](https://docs.triton.one/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.triton.one/solana/rpc-methods/readme/getminimumbalanceforrentexemption.md).

# getMinimumBalanceForRentExemption

Returns the minimum lamports an account with a given data length needs to be rent exempt.

## Request

{% tabs %}
{% tab title="cURL" %}

```bash
curl "https://<your-endpoint>.mainnet.rpcpool.com/<your-token>" -s -X POST \
  -H "Content-Type: application/json" \
  -d '{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "getMinimumBalanceForRentExemption",
  "params": [
    50,
    {
      "commitment": "processed"
    }
  ]
}'
```

{% endtab %}

{% tab title="Kit" %}

```typescript
import { createSolanaRpc } from "@solana/kit";

const rpc_url = "https://<your-endpoint>.mainnet.rpcpool.com/<your-token>";
const rpc = createSolanaRpc(rpc_url);

let dataLength = BigInt(50);
let minBalForRentExemption = await rpc
  .getMinimumBalanceForRentExemption(dataLength)
  .send();

console.log(minBalForRentExemption);
```

{% endtab %}

{% tab title="web3.js" %}

```typescript
import { Connection } from "@solana/web3.js";

const connection = new Connection("https://<your-endpoint>.mainnet.rpcpool.com/<your-token>", "confirmed");

let dataLength = 50;
let minBalForRentExemption =
  await connection.getMinimumBalanceForRentExemption(dataLength);

console.log(minBalForRentExemption);
```

{% endtab %}

{% tab title="Rust" %}

```rust
// Cargo.toml: anyhow = "1", solana-client = "~4.4", solana-commitment-config = "3",
// tokio = { version = "1", features = ["full"] }.
// Requires Rust 1.98.1 or newer (solana-client 4.4).
use anyhow::Result;
use solana_client::nonblocking::rpc_client::RpcClient;
use solana_commitment_config::CommitmentConfig;

#[tokio::main]
async fn main() -> Result<()> {
    let client = RpcClient::new_with_commitment(
        String::from("https://<your-endpoint>.mainnet.rpcpool.com/<your-token>"),
        CommitmentConfig::confirmed(),
    );

    let data_len = 50;

    let min_bal_for_rent_exemption = client
        .get_minimum_balance_for_rent_exemption(data_len)
        .await?;

    println!("{:#?}", min_bal_for_rent_exemption);

    Ok(())
}
```

{% endtab %}
{% endtabs %}

## Parameters

**`length`** · usize · required

The Account's data length

**`config`** · object

Configuration object containing the following fields:

**`commitment`** · string · default `finalized`

Values: `processed`, `confirmed`, `finalized`

Solana RPC uses the following commitment levels:

| Value       | Description                                                                                                                                                                        |
| ----------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `processed` | Return data from the highest slot this node has processed on the fork it currently considers best. This is the newest view, but it can still change if the cluster switches forks. |
| `confirmed` | Return data from the highest slot the cluster has finalized. On Alpenglow, `confirmed` and `finalized` are the same level.                                                         |
| `finalized` | Return data from the highest slot that the cluster has finalized. On Alpenglow there are no vote towers or lockouts: a slot is finalized by certificates of aggregated votes.      |

## Response

```json
{
  "jsonrpc": "2.0",
  "result": 904240,
  "id": 1
}
```

## Result

Minimum lamports required in the Account to remain rent free

***

*Adapted from the* [*Solana `getMinimumBalanceForRentExemption` reference*](https://solana.com/docs/rpc/http/getminimumbalanceforrentexemption)*, maintained by the Solana Foundation.*

***

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