> ## Documentation Index
> Fetch the complete documentation index at: https://invopop-singapore.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Welcome to Invopop

> Invopop converts sales into locally-compliant invoices, and reports them to the appropriate tax authority in the right format.

Wether you operate in several jurisdictions or want to offer invoicing to your customers, Invopop can help. Through our open source project [GOBL](https://gobl.org) (Go Business Language), we provide a robust toolset to help you generate tax compliant documents in any of our [supported countries](https://www.invopop.com/coverage), without vendor lock-in. Our [API](https://docs.invopop.com/api-ref/introduction) allows you to process, transform, and store GOBL documents; while our [Console](https://console.invopop.com) app gives you code-free and intuitive access to our API with advanced features such as [workflow creation](/guides/features/workflows) and extensible functionality through apps.

## Get Started

If you're new to Invopop, we recommend the following reads:

<CardGroup cols="2">
  <Card title="GOBL" icon="code" href="https://docs.gobl.org">
    GOBL is the open source format and toolset created by Invopop to simplify the creation of structured documents.
  </Card>

  <Card title="Glossary" icon="tag" href="/introduction/glossary">
    Key terms we use when describing the Invopop platform. Use it as a quick reference to understand our technical language and API concepts.
  </Card>
</CardGroup>

## Highlights

<CardGroup cols="2">
  <Card title="API Reference" icon="webhook" href="/api-ref/introduction">
    Invopop's API is split into five services (Silo, Transform, Sequences, Access and Utils) for each problem domain.
  </Card>

  <Card title="Idempotence" icon="rotate-right" href="/api-ref/idempotency">
    Operations with the same input data, when repeated, should provide exactly the same result. All our API calls support idempotency.
  </Card>

  <Card title="White Label" icon="tag" href="/guides/use-cases/white-label">
    <Tooltip tip="Point-of-Sale">POS</Tooltip> and <Tooltip tip="Enterprise Resource Planning">ERP</Tooltip> systems typically have basic invoicing features and integrate Invopop to provide compliant e-invoicing to their customers.
  </Card>

  <Card title="Workflows" icon="tag" href="/guides/features/workflows">
    Automate and streamline processes related to document handling.
  </Card>

  <Card title="PDF Invoice" icon="file-lines" href="/guides/features/pdf-invoice">
    Generate tax-compliant PDF invoices you can send to your customers.
  </Card>

  <Card title="Authentication" icon="tag" href="/guides/features/authentication">
    Generate an authentication token to start using the Invopop API.
  </Card>
</CardGroup>