> ## Documentation Index
> Fetch the complete documentation index at: https://docs.calius.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

> Calius is the all in one desktop platform for professional resellers. Manage inventory, list everywhere, and automate your entire workflow.

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  <img src="https://mintcdn.com/calius/ByMTj6BzVe8V9I6P/images/Frame-20.png?fit=max&auto=format&n=ByMTj6BzVe8V9I6P&q=85&s=a8f13b00739dd4e30e7441b445da9e06" alt="Frame 20" width="1500" height="500" data-path="images/Frame-20.png" />
</Frame>

## What Calius is

Calius is a desktop app for resellers. \
You keep one inventory, list each item across several marketplaces, and let Calius handle the repetitive parts: relisting, offers, sales tracking, invoices, and shipping labels.

Accounts stay local and sessions are encrypted.

## What you can do

* Manage one inventory across every platform.
* List an item to multiple marketplaces and accounts at once.
* Relist automatically to keep listings visible.
* Answer Vinted offers with your own pricing rules.
* Track every sale in one feed.
* Create invoices and shipping labels from a sale.

## How it works

<Steps>
  <Step title="Build your inventory">
    Add an item with photos, price, and details. (AI can write the title and description.)
  </Step>

  <Step title="List everywhere">
    Pick your platforms and accounts, then publish every listing at once.
  </Step>

  <Step title="Automate the rest">
    Listings refresh on their own, offers follow your rules, and sold items come down across platforms.
  </Step>

  <Step title="Track and scale">
    Monitor sales performance, profits, and history from one unified dashboard.
  </Step>

  <Step title="Track and invoice">
    Watch sales and revenue in the Overview, and create an invoice from any order.
  </Step>

  <Step title="Invoices and Labels">
    Invoices and labels are generated instantly when a sale comes in.
  </Step>
</Steps>

## Supported platforms

Calius manages multiple accounts per platform from one window.

| Platform                        |
| ------------------------------- |
| Vinted                          |
| Kleinanzeigen                   |
| eBay                            |
| StockX                          |
| Soon: Vestiaire, Shopify, Alias |

## Get started

<CardGroup cols={2}>
  <Card title="Install Calius" icon="download" href="/quickstart">
    Download and activate your license.
  </Card>

  <Card title="Connect a platform" icon="link" href="/platforms/connecting-accounts">
    Link your first marketplace account.
  </Card>
</CardGroup>