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

# Before you get started

> Essential information before making your first API call.

## Essential resources

<CardGroup cols={2}>
  <Card title="How it works" icon="rocket" href="/docs/guide/how-it-works">
    Understand the booking lifecycle — discovery, availability, booking, and post-booking — before you start building.
  </Card>

  <Card title="Setup" icon="settings" href="/docs/guide/setup">
    Read the technical rules that shape authentication, versioning, payloads, and responses before you follow the walkthrough.
  </Card>

  <Card title="Integration walkthrough" icon="map" href="/docs/guide/walkthrough">
    End-to-end flows for API Partners and Affiliates.
  </Card>

  <Card title="Key concepts" icon="book-open" href="/docs/guide/key-concepts">
    The core model — cities, products, variants, inventory, pricing, bookings, tickets — and the rules that govern how they fit together.
  </Card>

  <Card title="Launch checklist" icon="circle-check" href="/docs/guide/checklist">
    Use this when you are ready to build and validate the integration before launch.
  </Card>

  <Card title="Enums and error codes" icon="book" href="/docs/guide/enums-and-error-codes">
    Reference material for implementers who need exact values, statuses, and validation rules.
  </Card>
</CardGroup>

## Updates

<CardGroup cols={2}>
  <Card title="What's new" icon="sparkles" href="/docs/guide/whats-new">
    Recent changes and release notes.
  </Card>

  <Card title="Upcoming releases" icon="calendar-clock" href="/docs/guide/upcoming-releases">
    Planned work and near-term roadmap items.
  </Card>
</CardGroup>