# getblockchaininfo - Bitcoin

This method returns an object containing various state info regarding blockchain processing.

### Parameters

* None

### Request

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

```bash
curl --location --request POST 'https://go.getblock.io/<ACCESS-TOKEN>/' \
--header 'Content-Type: application/json' \
--data-raw '{
    "jsonrpc": "2.0",
    "method": "getblockchaininfo",
    "params": [],
    "id": "getblock.io"
}'
```

{% endtab %}

{% tab title="Axios" %}

```javascript
import axios from 'axios';

const data = JSON.stringify({
    "jsonrpc": "2.0",
    "method": "getblockchaininfo",
    "params": [],
    "id": "getblock.io"
});

const config = {
    method: 'post',
    url: 'https://go.getblock.io/<ACCESS-TOKEN>/',
    headers: {
        'Content-Type': 'application/json'
    },
    data: data
};

axios(config)
    .then(response => console.log(JSON.stringify(response.data)))
    .catch(error => console.log(error));
```

{% endtab %}

{% tab title="Request" %}

```python
import requests
import json

url = "https://go.getblock.io/<ACCESS-TOKEN>/"

payload = json.dumps({
    "jsonrpc": "2.0",
    "method": "getblockchaininfo",
    "params": [],
    "id": "getblock.io"
})

headers = {
    'Content-Type': 'application/json'
}

response = requests.post(url, headers=headers, data=payload)
print(response.text)
```

{% endtab %}

{% tab title="Rust" %}

```rust
use reqwest::header;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let client = reqwest::Client::new();
    
    let response = client
        .post("https://go.getblock.io/<ACCESS-TOKEN>/")
        .header(header::CONTENT_TYPE, "application/json")
        .body(r#"{
            "jsonrpc": "2.0",
            "method": "getblockchaininfo",
            "params": [],
            "id": "getblock.io"
        }"#)
        .send()
        .await?;
    
    println!("{}", response.text().await?);
    Ok(())
}
```

{% endtab %}
{% endtabs %}

### Response

```json
{
    "result": {
        "chain": "main",
        "blocks": 928556,
        "headers": 928556,
        "bestblockhash": "000000000000000000006d2c2d0fd10aad6475f2e93698cc2618d78a0668d06e",
        "difficulty": 148195306640204.7,
        "time": 1766147618,
        "mediantime": 1766146969,
        "verificationprogress": 0.999996294840767,
        "initialblockdownload": false,
        "chainwork": "0000000000000000000000000000000000000000ff4d32eb9db38dc0f4b538e7",
        "size_on_disk": 805983801428,
        "pruned": false,
        "warnings": ""
    },
    "error": null
}
```

### Response Parameters

| Field                | Type    | Description                                     |
| -------------------- | ------- | ----------------------------------------------- |
| chain                | string  | Current network name (main, test, regtest).     |
| blocks               | number  | Number of processed blocks.                     |
| headers              | number  | Number of validated headers.                    |
| bestblockhash        | string  | Hash of the current best block.                 |
| difficulty           | number  | Current difficulty.                             |
| time                 | number  | Timestamp of the current best block.            |
| mediantime           | number  | Median time for the current best block.         |
| verificationprogress | number  | Estimate of verification progress (0 to 1).     |
| initialblockdownload | boolean | Whether initial block download is in progress.  |
| chainwork            | string  | Total amount of work in active chain.           |
| size\_on\_disk       | number  | Estimated size of block and undo files on disk. |
| pruned               | boolean | Whether the blocks are subject to pruning.      |
| warnings             | string  | Any network and blockchain warnings.            |
| softforks            | object  | Status of softforks.                            |

### Use Case

The `getblockchaininfo` method is essential for:

* Monitoring node synchronization status
* Checking network and chain parameters
* Tracking softfork activation status
* Building node health dashboards
* Verifying chain state before operations
* Monitoring blockchain warnings

### Error Handling

| Status Code | Error Message       | Cause                            |
| ----------- | ------------------- | -------------------------------- |
| 403         | RBAC: access denied | Missing or invalid ACCESS-TOKEN. |

### Integration Notes

The `getblockchaininfo` method helps developers:

* Build node monitoring dashboards
* Check sync status before transactions
* Track protocol upgrades
* Monitor chain health
* Implement connection status displays


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.getblock.io/api-reference/bitcoin-btc/btc_getblockchaininfo.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.