# Security

## **Google Sheets Access**

Google has made it [easy to control who has access](https://support.google.com/docs/answer/2494822) to your current sheet. Keep in mind, SheetLink only works in sheets with the add-on installed and activated.

## API Keys & Authentication

From your google sheet, select **"Add-ons" > "SheetLink" > "🔐 Authentication"** for all apps requiring authentication.

All API and authentication keys are securely saved as [Google Document Properties](https://developers.google.com/apps-script/guides/properties) of the current Google Sheet only and **are never accessible by the SheetLink team**. App API keys can be used with respective SheetLink app formulas by anyone with access to the Google Sheet.

{% hint style="success" %}
The **"key=reset"** [option](/formulas/options.md) will reset the authentication for any app
{% 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://docs.sheet.link/security.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.