# Provider ID

Provider ID is a unique identifier that links your subscription to an account on the website [happ-proxy.com](https://happ-proxy.com/). It provides access to advanced application usage statistics and allows accurate tracking of the number of active devices.

***

#### Where to Get Provider ID?

To obtain the Provider ID, you need to register on the website [https://happ-proxy.com](https://happ-proxy.com/)

After registration, you will be able to see it in the upper right part of the screen or in the user profile.

#### **How It Works**

Once a day, the application sends a GET request to:

```
https://check.happ-proxy.com/provider?id={ProviderID}
```

The request includes:

* **providerid** — your unique identifier;
* **domain hash**, from which the subscription is loaded;
* **HWID** of the device;
* **name and version** of the operating system.

The domain hash ensures that the ProviderID is tied to a specific subscription domain and prevents its use on other sites or in third-party subscriptions.

***

#### **Ways to Transmit ProviderID**

You can add ProviderID to the subscription in three ways:

1. **In URL** (query parameter)

   ```
   https://your-domain.com/sub/123#?providerid={ProviderID}
   ```
2. **In the Subscription Body** (comment)

   ```
   #providerid {ProviderID}
   vless://70cc48c5‑b2f4…
   vmess://zkIAU1JitkI…
   ```
3. **In the HTTP Header** of the Response

   ```
   HTTP/2 200 OK
   date: Wed, 14 Apr 2025 10:00:00 GMT
   content-type: application/json
   content-length: 3798
   content-disposition: attachment; filename="213"
   providerid: {ProviderID}
   ```


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# 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://www.happ.su/main/dev-docs/provider-id.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.