> For the complete documentation index, see [llms.txt](https://help.nightfall.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.nightfall.ai/developer-api/key-concepts/file_scan/webhooks_async_notifications/webhook_signing_key.md).

# Accessing Your Webhook Signing Key

In order to accept requests from Nightfall, a Webhook server must use a signing key to verify requests.

To access or generate your Webhook signing key, start by logging in to the Nightfall [dashboard](https://app.nightfall.ai/developer-platform).

Select the Developer Platform > Manage API Keys using the navigation bar on the left side of the page. You will see the Webhook signing section:

<figure><img src="/files/gsOTVvoZRZxos9WupaxZ" alt=""><figcaption></figcaption></figure>

Unlike the API Key, it is possible to reveal the signature via the "eye" icon furtherest to the left of the three icons displayed.

You may copy the current value to your clipboard with the "copy" icon in the center of the three icons displayed.

You may also regenerate the key with the circular arrow icon furthest to the right.

Use this value as shown in the code examples that are used in the following sections.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## 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, and the optional `goal` query parameter:

```
GET https://help.nightfall.ai/developer-api/key-concepts/file_scan/webhooks_async_notifications/webhook_signing_key.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

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.