# Webhooks

We can notify you when transactions happen in real-time using *webhooks.* When events occur, we send a POST request to your webhook url. This can happen when a transaction is successful or has failed.

{% hint style="info" %}
To receive notifications, you will need to have a url on your server and this url must be registered either using the Duplo dashboard or via the API
{% endhint %}


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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://developers.tryduplo.com/duplo-api-documentation/webhooks/webhooks.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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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.