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

# Invoice AI Documentation

> Everything you need to create, send, and manage invoices with Invoice AI — from your first invoice to full API automation.

Invoice AI is a global invoicing platform for freelancers and small businesses. Create professional invoices in seconds using AI assistance, manage your customer catalog, track payment status, and automate your billing workflow through a Stripe-shaped REST API.

<CardGroup cols={2}>
  <Card title="Quick Start" icon="rocket" href="/quickstart">
    Create your first invoice in under 5 minutes
  </Card>

  <Card title="API Reference" icon="code" href="/api-reference/overview">
    Explore the full REST API
  </Card>

  <Card title="AI Invoice Creation" icon="sparkles" href="/features/ai-invoice-creation">
    Let AI draft your invoices from plain text
  </Card>

  <Card title="Webhooks" icon="webhook" href="/api-reference/webhooks/overview">
    React to invoice events in real time
  </Card>
</CardGroup>

## Get Started

<Steps>
  <Step title="Create your account">
    Sign up at [invoice.horizonpay.co](https://invoice.horizonpay.co) or create your first invoice as a guest — no account required to start.
  </Step>

  <Step title="Set up your business profile">
    Add your business name, country, and currency. Invoice AI auto-selects your currency based on your location.
  </Step>

  <Step title="Create your first invoice">
    Use the invoice builder or type a plain-English description like "Invoice Acme \$5,000 for brand design" and let AI fill in the details.
  </Step>

  <Step title="Send and get paid">
    Finalize your invoice to assign an invoice number, then share the PDF link or email it directly to your client.
  </Step>
</Steps>

## Explore by Topic

<CardGroup cols={3}>
  <Card title="Invoices" icon="file-invoice" href="/concepts/invoices">
    Lifecycle, statuses, and numbering
  </Card>

  <Card title="Customers" icon="users" href="/concepts/customers">
    Manage your client list
  </Card>

  <Card title="Products & Prices" icon="tag" href="/concepts/products-and-prices">
    Build a reusable catalog
  </Card>

  <Card title="Business Profile" icon="building" href="/settings/business-profile">
    Configure your business details
  </Card>

  <Card title="API Keys" icon="key" href="/settings/api-keys">
    Authenticate API requests
  </Card>

  <Card title="Email Invoices" icon="envelope" href="/features/emailing-invoices">
    Send invoices to clients
  </Card>
</CardGroup>