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

# Introduction

> Welcome to the Case Health AI (CHAI) API documentation

# 👋 Welcome to the CHAI API

**Case Health AI (CHAI)** is a modern API platform built to automate prior authorization workflows using modular AI agents. We integrate directly into your utilization management (UM) systems to streamline intake, eligibility validation, policy enforcement, and AI-powered decisions.

For policy checks, you'll need to submit your PDF policies from your workspace portal by going to Plan from the side navigation. We use NDC and CPT codes to determine which policy to use.

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## ⚡ Quick Start

<CardGroup cols={2}>
  <Card title="Schedule a demo" icon="paper-plane" href="https://calendly.com/mas-casehealth">
    Schedule a demo to learn how to submit a FHIR-based prior authorization to kick off the AI workflow.
  </Card>

  <Card title="Get an API Key" icon="key" href="/api-reference/authentication">
    Book a short onboarding session to receive your secure API key and environment access.
  </Card>
</CardGroup>

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## 🔌 Add AI Decision Support

CHAI offers modular AI agents and plugin options:

<CardGroup cols={2}>
  <Card title="Submit your first Prior Auth" icon="file-pdf" href="/api-reference/endpoint/prior_auths/get">
    Submit your first Prior Auth to kick off the AI workflow.
  </Card>

  <Card title="View intake results" icon="address-card" href="/api-reference/endpoint/prior_auths/intake">
    View intake results to see the patient, practitioners, diagnoses, and medication requests.
  </Card>

  <Card title="View policy check results" icon="book-medical" href="/api-reference/endpoint/prior_auths/policy_check">
    View policy check results to see the policy check results.
  </Card>

  <Card title="Run a determination" icon="sitemap" href="/api-reference/endpoint/prior_auths/determination">
    Run a determination to see the final decision if the prior auth should be approved, denied, or Request For Info.
  </Card>
</CardGroup>

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Need help integrating? [Book a session with our engineers](https://calendly.com/mas-casehealth) or reach out at **[mas@casehealth.ai](mailto:mas@casehealth.ai)**.