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

# Ionic Docs

> Build hosted checkout, payment links, catalog, customers, and refunds with Ionic.

Ionic gives your business hosted checkout, reusable payment links, catalog-backed pricing, customer records, and refunds without requiring your integration to send raw card data to the API.

Your server creates checkout resources. Ionic-hosted checkout collects the
buyer's payment. Your server then checks the completed payment and fulfills the
order.

## Start here

<CardGroup cols={2}>
  <Card title="Quickstart" icon="play" href="/quickstart">
    Create a checkout session, redirect a buyer, and verify the result.
  </Card>

  <Card title="Hosted Checkout" icon="shopping-cart" href="/guides/checkout">
    Accept one-time payments or recurring signups on an Ionic-hosted page.
  </Card>

  <Card title="Payment links" icon="link" href="/guides/payment-links">
    Publish reusable links backed by catalog prices.
  </Card>

  <Card title="API reference" icon="braces" href="/api-reference/overview">
    Find endpoint payloads, response examples, and required fields.
  </Card>
</CardGroup>

## How integrations usually grow

Most teams start with inline checkout sessions. Once the product surface gets more reusable, they add products and prices, then payment links, customers, and refunds.

1. Create a [checkout session](/guides/checkout) from your backend.
2. Add [catalog objects](/guides/catalog) when prices need to be reused.
3. Create [payment links](/guides/payment-links) for reusable hosted checkout pages.
4. Use [refunds](/guides/refunds-captures) for post-payment support workflows.

## Public API areas

| Area                                   | What it covers                                                                                    |
| -------------------------------------- | ------------------------------------------------------------------------------------------------- |
| Checkout sessions                      | Hosted checkout attempts created from your backend.                                               |
| Payment links                          | Reusable hosted checkout links for products and prices.                                           |
| Products and prices                    | Catalog records used by checkout and payment links.                                               |
| Customers                              | Buyer identity, contact data, and customer metadata.                                              |
| Refunds                                | Full and partial refunds for completed payments.                                                  |
| [Invoices](/guides/invoices)           | Pending charges composed into a numbered document and collected off-session or via a hosted page. |
| [Subscriptions](/guides/subscriptions) | Recurring-price items billed to a customer automatically on each renewal date.                    |
| [Credit notes](/guides/credit-notes)   | Immutable adjustments to an already-issued invoice.                                               |
| [Saved cards](/guides/save-cards)      | Setup intents that vault a card for later off-session charges.                                    |
| [Webhooks](/webhooks/overview)         | Event delivery to a URL you control when something happens in your account.                       |