> For the complete documentation index, see [llms.txt](https://docs.getblock.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.getblock.io/api-reference/bitcoin-btc/btc_validateaddress.md).

# validateaddress - Bitcoin

This method returns information about the given Bitcoin address.

### Parameters

| Parameter | Type   | Required | Description                      |
| --------- | ------ | -------- | -------------------------------- |
| address   | string | Yes      | The Bitcoin address to validate. |

### Request

{% tabs %}
{% tab title="cURL" %}
{% code overflow="wrap" %}

```bash
curl --location --request POST 'https://go.getblock.io/<ACCESS-TOKEN>/' \
--header 'Content-Type: application/json' \
--data-raw '{
    "jsonrpc": "2.0",
    "method": "validateaddress",
    "params": ["bc1qar0srrr7xfkvy5l643lydnw9re59gtzzwf5mdq"],
    "id": "getblock.io"
}'
```

{% endcode %}
{% endtab %}

{% tab title="Axios" %}
{% code overflow="wrap" %}

```javascript
import axios from 'axios';

const data = JSON.stringify({
    "jsonrpc": "2.0",
    "method": "validateaddress",
    "params": ["bc1qar0srrr7xfkvy5l643lydnw9re59gtzzwf5mdq"],
    "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));
```

{% endcode %}
{% endtab %}

{% tab title="Request" %}
{% code overflow="wrap" %}

```python
import requests
import json

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

payload = json.dumps({
    "jsonrpc": "2.0",
    "method": "validateaddress",
    "params": ["bc1qar0srrr7xfkvy5l643lydnw9re59gtzzwf5mdq"],
    "id": "getblock.io"
})

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

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

{% endcode %}
{% endtab %}

{% tab title="Rust" %}
{% code overflow="wrap" %}

```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": "validateaddress",
    "params": ["bc1qar0srrr7xfkvy5l643lydnw9re59gtzzwf5mdq"],
            "id": "getblock.io"
        }"#)
        .send()
        .await?;
    
    println!("{}", response.text().await?);
    Ok(())
}
```

{% endcode %}
{% endtab %}
{% endtabs %}

### Response

```json
{
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "result": {
        "isvalid": true,
        "address": "bc1qar0srrr7xfkvy5l643lydnw9re59gtzzwf5mdq",
        "scriptPubKey": "0014e8df018c7e326cc253f167d922d5b8e7cd25f1c9",
        "isscript": false,
        "iswitness": true,
        "witness_version": 0,
        "witness_program": "e8df018c7e326cc253f167d922d5b8e7cd25f1c9"
    }
}
```

### Response Parameters

| Field            | Type    | Description                                            |
| ---------------- | ------- | ------------------------------------------------------ |
| isvalid          | boolean | Whether the address is valid.                          |
| address          | string  | The validated Bitcoin address.                         |
| scriptPubKey     | string  | The hex-encoded scriptPubKey generated by the address. |
| isscript         | boolean | Whether the key is a script.                           |
| iswitness        | boolean | Whether the address is a witness address.              |
| witness\_version | number  | The witness version (for SegWit addresses).            |
| witness\_program | string  | The hex value of the witness program.                  |

### Use Case

The `validateaddress` method is essential for:

* Validating user-provided addresses
* Determining address type (legacy, SegWit, Taproot)
* Payment form validation
* Building address analysis tools
* Preventing invalid transactions
* Supporting multiple address formats

### Error Handling

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

### Integration With Web3

The `validateaddress` method helps developers:

* Validate addresses before transactions
* Build address type detection
* Support all address formats
* Implement user input validation
* Create address analysis features


---

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