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

# Kardinal API Documentation

> Integrate Kardinal's logistics optimization API: route calculation, constraint management, real-time re-optimization.

Kardinal exposes an API that calculates optimized routes from your vehicles, orders, and business constraints. This documentation covers technical integration and the concepts behind the optimization engine.

<CardGroup cols={2}>
  <Card title="Getting started" icon="rocket" href="/getting-started/first-api-call">
    Send your first API call and get an optimized route in under 15 minutes.
  </Card>

  <Card title="Guides" icon="map" href="/guides/authentication">
    Authentication, advanced constraint modeling, real-time re-optimization.
  </Card>

  <Card title="Concepts" icon="lightbulb" href="/concepts/how-the-optimization-engine-works">
    Understand how the optimization engine calculates and prioritizes solutions.
  </Card>

  <Card title="API Reference" icon="code" href="/reference/data-model">
    Endpoints, data model, error codes, limits and quotas.
  </Card>
</CardGroup>