> For the complete documentation index, see [llms.txt](https://docs.exoclick.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.exoclick.com/rtb/publishers/exoclick-rtb/bid-response.md).

# ExoClick RTB Bid Response

The following page describes the responses you should expect to receive from ExoClick RTB requests:

## Bid Response Object

The ExoClick RTB Bid Response is done using JSON and XML.

| Attribute   | Description                                                                                                                   |
| ----------- | ----------------------------------------------------------------------------------------------------------------------------- |
| id          | ID of the object to which this bid applies (string)                                                                           |
| imgUrl      | Image url (only for type banner) (string)                                                                                     |
| iconUrl     | Icon url (only for type push\_notification and must be of requested dimensions) (string)                                      |
| clickUrl    | Forward url when campaign is clicked (for type banner or push\_notification) (string)                                         |
| nUrl        | Win notification URL (string)                                                                                                 |
| url         | Forward url when campaign is clicked (only for type popunder) (string)                                                        |
| title       | Title of the ad (only for type push\_notification) (string)                                                                   |
| description | Description of the ad (only for type push\_notification) (string)                                                             |
| value       | Bid price in CPM (float)                                                                                                      |
| btype       | Pricing Model. Values: 1 = CPM, 2 = CPC. Default = 1 (int). When response is for an Email Clicks zone request, 1 = Smart CPC. |

**Notes:**

* `"id"` attribute should match the **"id received in the request"**.
* **Push Notification** ad format may receive bids with the CPC pricing model. **Direct Link** format may also when used for **Email Click** zone requests.

## Win Notification

When the parameter **Bid Response Object > nUrl** is in the bid response, a GET request must be performed to such URL.


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