---
title: getBlockHeight
description: >-
  Returns the block height the node sees at the requested commitment.
url: /docs/rpc/http/getblockheight
type: reference
hideTableOfContents: true
---

Returns the block height the node sees at the requested commitment.

<Callout type="info" title="Source">
  [`get_block_height`](https://github.com/anza-xyz/agave/blob/v3.1.8/rpc/src/rpc.rs#L955)
</Callout>

<APIMethod>

```jsonc !!request curl
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "getBlockHeight",
  "params": [
    // !hover(1:3) config
    {
      // !hover commitment
      "commitment": "finalized"
    }
  ]
}
```

```ts !!request title="Kit"
import { createSolanaRpc } from "@solana/kit";

const rpc_url = "https://api.devnet.solana.com";
const rpc = createSolanaRpc(rpc_url);

let blockHeight = await rpc.getBlockHeight().send();

console.log("block height:", blockHeight);
```

```ts !!request title="web3.js"
import { Connection, clusterApiUrl } from "@solana/web3.js";

const connection = new Connection(clusterApiUrl("devnet"), "confirmed");

let blockHeight = await connection.getBlockHeight();

console.log("block height:", blockHeight);
```

```rs !!request title="Rust"
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://api.devnet.solana.com"),
        CommitmentConfig::confirmed(),
    );

    let block_height = client.get_block_height().await?;

    println!("Block height: {:#?}", block_height);

    Ok(())
}
```

### !params

#### !! config

!type object  
!optional

Configuration object containing the following fields:

##### !! commitment

!type string  
!values processed confirmed finalized  
!default 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 that at least two-thirds of active stake has directly voted to confirm. This is more stable than `processed`, but it is still a weaker guarantee than `finalized`.                                                                       |
| `finalized` | Return data from the highest slot that the cluster recognizes as finalized. In practice, this means the slot has reached maximum vote lockout in validators' vote towers and is recognized by at least two-thirds of active stake. This is the strongest commitment level. |

##### !! minContextSlot

!type number

The minimum slot that the request can be evaluated at.

```json title="Example"
{ "minContextSlot": 341197000 }
```

### !!result

```jsonc !response
{
  "jsonrpc": "2.0",
  // !hover result
  "result": 1233,
  "id": 1
}
```

!type u64

Block height the node used to answer this request.

</APIMethod>