---
title: Interact with the public REST API on a ServiceNow instance
description: The Mobile SDK provides functionality that enables iOS applications to call the public REST API on a ServiceNow instance.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/australia/api-reference/developer-guides/mobsdk-ios-interact-rest\_api.html
release: australia
product: Developer Guides
classification: developer-guides
topic_type: reference
last_updated: "2026-03-12"
reading_time_minutes: 1
breadcrumb: [Mobile SDK Developer Guide - iOS, Developer guides, API implementation and reference]
---

# Interact with the public REST API on a ServiceNow instance

The Mobile SDK provides functionality that enables iOS applications to call the public REST API on a ServiceNow instance.

Using the [NowAPIService](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/api-reference/cllent-mobile-api-reference/NowAPIServiceiOSAPI.md) API you can interact with any of the base ServiceNow public [REST APIs](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/api-reference/rest-apis/api-rest.md), or create custom REST APIs within the instance and call those from your iOS application.