# help - Bitcoin

This method lists all available commands or provides help for a specified command.

### Parameters

| Parameter | Type   | Required | Description                                                  |
| --------- | ------ | -------- | ------------------------------------------------------------ |
| command   | string | No       | The command to get help for. If omitted, lists all commands. |

### Request

### 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": "help",
   "params": ["getblock"],
    "id": "getblock.io"
}'
```

{% endtab %}

{% tab title="Axios" %}

```jsx
import axios from 'axios';

const data = JSON.stringify({
    "jsonrpc": "2.0",
    "method": "help",
    "params": ["getblock"],
    "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" %}

```py
import requests
import json

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

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

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

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

{% endtab %}

{% tab title="Rust" %}

```rs
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": "help",
            "params": ["getblock"],
            "id": "getblock.io"
        }"#)
        .send()
        .await?;
    
    println!("{}", response.text().await?);
    Ok(())
}
```

{% endtab %}
{% endtabs %}

### Response

{% code overflow="wrap" %}

```json
{
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "result": "getblock \"blockhash\" ( verbosity )\n\nIf verbosity is 0, returns a string that is serialized, hex-encoded data for block 'hash'.\nIf verbosity is 1, returns an Object with information about block <hash>.\nIf verbosity is 2, returns an Object with information about block <hash> and information about each transaction.\n\nArguments:\n1. blockhash    (string, required) The block hash\n2. verbosity    (numeric, optional, default=1) 0 for hex-encoded data, 1 for a JSON object, 2 for JSON object with transaction data\n\nResult (for verbosity = 0):\n\"hex\"    (string) A string that is serialized, hex-encoded data for block 'hash'\n\n..."
}
```

{% endcode %}

### Response Parameters

| Field  | Type   | Description                                                  |
| ------ | ------ | ------------------------------------------------------------ |
| result | string | Help text for the specified command or list of all commands. |

### Use Case

The `help` method is essential for:

* Discovering available RPC commands
* Learning command parameters and usage
* Building dynamic documentation
* Debugging API integration
* Exploring node capabilities
* Creating command reference tools

### Error Handling

| Status Code | Error Message | Cause                            |
| ----------- | ------------- | -------------------------------- |
| 403         | Forbidden     | Missing or invalid ACCESS-TOKEN. |

### Integration With Web3

The `help` method helps developers:

* Explore available RPC methods
* Understand parameter requirements
* Build self-documenting tools
* Create API exploration interfaces
* Support developer onboarding


---

# 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_help.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.