---
title: "Config"
description: "Config"
url: "https://www.contentstack.com/docs/developers/sdks/content-delivery-sdk/ios/reference/config"
product: "Contentstack"
doc_type: "guide"
audience:
  - developers
  - admins
version: "current"
last_updated: "2026-09-21"
---

# Config

## Config

Stack configuration for setting stack details.

## setEarlyAccess

With the setEarlyAccess header support, you can access features that are part of the early access program.

```
Config *config = [[Config alloc] init];
[config setEarlyAccess:@[@"Taxonomy",@"Teams",@"Terms", @"LivePreview"]];
```

Host name of Contentstack api server.

You can choose from seven regions namely NA, EU, AU, Azure NA, Azure EU, GCP NA and GCP EU.

API version of Contentstack api server.

Branch id for getting content from Stack

## Config | iOS Delivery SDK | Contentstack

Config sets stack configuration details such as host and region in the iOS Delivery SDK before initializing a Contentstack stack.