> 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

# [Develop Websites SDK](https://dev.wix.com/docs/api/get-menu-content?url=https%3A%2F%2Fdev.wix.com%2Fdocs%2Fdevelop-websites-sdk&format=markdown.md)

## [Code Your Site](https://dev.wix.com/docs/develop-websites-sdk/code-your-site.md)


### [Extend Wix Business Solutions](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/extend-wix-business-solutions.md)


- [About Apps Created by Wix](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/extend-wix-business-solutions/about-apps-created-by-wix.md)

#### [Wix App Collections](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/extend-wix-business-solutions/wix-app-collections.md)


- [About Wix App Collection Queries](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/extend-wix-business-solutions/wix-app-collections/about-wix-app-collection-queries.md)


#### [Replace App Pages](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/extend-wix-business-solutions/replace-app-pages.md)


- [About App Page Replacement](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/extend-wix-business-solutions/replace-app-pages/about-app-page-replacement.md)

- [Build a Custom Booking Calendar Page](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/extend-wix-business-solutions/replace-app-pages/build-a-custom-booking-calendar-page.md)

- [Build a Custom Booking Service Page](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/extend-wix-business-solutions/replace-app-pages/build-a-custom-booking-service-page.md)


#### [Service Plugins](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/extend-wix-business-solutions/service-plugins.md)


- [About Service Plugins](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/extend-wix-business-solutions/service-plugins/about-service-plugins.md)

- [Available Service Plugins](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/extend-wix-business-solutions/service-plugins/available-service-plugins.md)

- [Implement Service Plugins](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/extend-wix-business-solutions/service-plugins/implement-service-plugins.md)


#### [Data Extension Schemas](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/extend-wix-business-solutions/data-extension-schemas.md)


- [About Data Extension Schemas](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/extend-wix-business-solutions/data-extension-schemas/about-data-extension-schemas.md)

- [Extend an Object with Custom Fields](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/extend-wix-business-solutions/data-extension-schemas/extend-an-object-with-custom-fields.md)