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# Introduction

VulcanSQL empowers you to construct a self-service catalog page. A remarkable aspect of this is that **even users lacking SQL knowledge can effortlessly extract data from the API you've crafted.** 

See how to install `@vulcan-sql/catalog-server` package in [Installation](./installation).

## Explore our API Endpoint Listing Page
This page serves as a showcase for all APIs painstakingly prepared by our data analysts and data engineers. It provides a broad overview for users to choose from.
![catalog-api-list](./img/catalog-api-list.png)


## Dive Deep into our API Endpoint Detail Page
Venturing into a particular API endpoint from the listing page, users will be greeted with extensive details like:
* Column Metadata
* Parameters Metadata


Additionally, users have the freedom to:
* Engage with data in real-time, with the ability to set and tweak filters according to their needs.
* Download data in both CSV or JSON formats.
* Learn and adapt on how to extract data from other applications.

![catalog-connect-page](./img/catalog-connect-page.png)

## Seamless Connectivity from Applications
By following the provided instructions, users can effortlessly copy an API link and incorporate it into their applications to fetch the required data.

![connect-from-spreadsheet](./img/connect-from-spreadsheet.png)
