---
title: "Nasuni Data Service for Azure API Overview"
slug: "nds-azure-api-overview"
tags: ["Azure", "Configuration", "Object Storage", "Permissions", "UniFS"]
updated: 2026-03-25T14:50:10Z
published: 2026-03-25T14:50:10Z
canonical: "docs.nasuni.com/nds-azure-api-overview"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.nasuni.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Nasuni Data Service for Azure API Overview

## **API Spec of NDS for Azure**

The complete API spec is available here: [https://docs.api.nasuni.com/](https://docs.api.nasuni.com/)

## File Metadata Guide

The following file-level metadata is available via NDS for Azure.

| Name | Description *Example* |
| --- | --- |
| ctime | Created timestamp. *2025-08-20T19:30:59.443250857Z* |
| mtime | Modified timestamp. *2025-07-22T13:09:33.815264200Z* |
| size | Size in bytes. *958716* |
| Content-Type | Content type. *text/plain* |
| security_ntacl | **Base64 encoded NTFS ACLs. *QJACpABIAAQ…truncated…AAUhmGmgzTwQAAA==*** Contains encoded NTFS ACL metadata. While it can be decoded and used downstream from NDS, doing so requires custom tooling beyond the scope of Nasuni support. Any SIDs included in this attribute must be resolved against the appropriate Active Directory domains. This attribute is presented for advanced use cases and is not recommended for general integration. |
| atime | For Nasuni use only. Not supported for customer use. |
| uid | For Nasuni use only. Not supported for customer use. |
| mode | For Nasuni use only. Not supported for customer use. |
| version | For Nasuni use only. Not supported for customer use. |
| firsthandle | For Nasuni use only. Not supported for customer use. |
| handle | For Nasuni use only. Not supported for customer use. |
| user-dosattrib | For Nasuni use only. Not supported for customer use. |
| gid | For Nasuni use only. Not supported for customer use. |