> Portal Navigation:
> 
> - Append `.md` to any URL under `https://dev.wix.com/docs/` to get its markdown version.
> - Pages are either content pages (article or reference text) or menu pages (a list of links to child pages).
> - To get a menu page, truncate any URL to a parent path and append `.md` (e.g. `https://dev.wix.com/docs/sdk.md`, `https://dev.wix.com/docs/sdk/core-modules.md`).
> - Top-level index of all portals: https://dev.wix.com/docs/llms.txt
> - Full concatenated docs: https://dev.wix.com/docs/llms-full.txt

## Resource: About Host Modules

## Article: About Host Modules

## Article Link: https://dev.wix.com/docs/sdk/host-modules/about-host-modules.md

## Article Content:

# About Host Modules

Host modules allow you to use SDK APIs to interact with a Wix site when writing code for frontend environments such as the [dashboard](https://dev.wix.com/docs/sdk/host-modules/dashboard/introduction.md), [editor](https://dev.wix.com/docs/sdk/host-modules/editor/introduction.md), or [site](https://dev.wix.com/docs/sdk/host-modules/site/introduction.md). The [workspace](https://dev.wix.com/docs/sdk/host-modules/workspace/introduction.md) module offers methods for both dashboard and editor contexts. The module you use depends on which environment you're writing code for. 

When using a host module with a [Wix client](https://dev.wix.com/docs/sdk/core-modules/sdk/wix-client.md), the client's authentication and authorization are handled automatically by the host module. The client authenticates API calls using the [identity](https://dev.wix.com/docs/api-reference/articles/authentication/about-identities.md) of the site visitor, site member, or Wix user who accesses the frontend you create. Learn more about [when you need to use a Wix client](https://dev.wix.com/docs/sdk/articles/set-up-a-client/about-the-wix-client.md#when-you-dont-need-a-wix-client).

The SDK includes the following host modules:
+ [Workspace](https://dev.wix.com/docs/sdk/host-modules/workspace/introduction.md)
+ [Dashboard](https://dev.wix.com/docs/sdk/host-modules/dashboard/introduction.md)
+ [Editor](https://dev.wix.com/docs/sdk/host-modules/editor/introduction.md)
+ [Site](https://dev.wix.com/docs/sdk/host-modules/site/introduction.md)