# Licensing

{% hint style="info" %}
Click [Here ](/license-option.md)to get details about RECOGNITO license option

[License Option](/license-option.md)
{% endhint %}

## Get your HWID (Hardware ID)

To activate SDK, you have to first get your Hardware ID by using the [get\_device\_id ](/face-recognition-sdk/integration-guide/linux/api-reference.md#get_device_id)function.

<figure><img src="/files/RoLliKfnYsiEqb7h0Raw" alt=""><figcaption></figcaption></figure>

## Request License

After getting HWID, share it with us for license key.

[**Contact us**](/contact-and-support.md)

## Activate SDK

[Initializes ](/face-recognition-sdk/integration-guide/linux/api-reference.md#init_sdk_offline)the SDK with license key. Should be called before using of any other functions.

```python
init_sdk_offline("engine/bin", "license.txt")
```


---

# 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.recognito.vision/face-recognition-sdk/integration-guide/linux/licensing.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.