# API Documentation

## Content

The following namespaces are provided in the API for SpreadJS Designer Components.

* [GC.Spread.Sheets](https://developer.mescius.com/spreadjs/api/modules/GC.Spread.Sheets)
* [GC.Spread.Sheets.Designer](https://developer.mescius.com/spreadjs/api/designer/modules/GC.Spread.Sheets.Designer)