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

# Rheon SDK

> The Rheon widget - one embeddable flow for stablecoin deposits and bank transfers, in your product or standalone.

The SDK is the Rheon flow your users see, dropped into your product. One embed
covers both ways money comes in: a stablecoin from a wallet on any supported chain,
or fiat from a bank. You choose which paths are offered and where the money lands.

<Note>
  **Status: the widget is live in preview at
  [widget.rheon.io](https://widget.rheon.io) and settles real deposits on the
  stablecoin path.** Embedding it into your own page - signed session URLs, theming,
  lifecycle events - is being built; the shape is documented on
  [Integration options](/integration/options) and marked as a plan where it is not
  live yet.
</Note>

## What it does

* **Stablecoin deposits.** The user connects a wallet, picks a stablecoin on any
  supported network, and the deposit is routed and settled to your destination. Live
  today.
* **Bank deposits.** The user verifies once, gets bank details, and pays from their
  own bank; the transfer converts and settles on-chain. Built, waiting on the
  banking partner agreement - see [Virtual accounts](/products/virtual-accounts).
* **Card payments.** Priced, started, and followed to settlement through the same
  flow.
* **Fixed amounts in either direction.** Pin what the payer spends, or pin what has
  to land and let the payer's side flex to cover it.

## Three ways to run it

| Mode                | What it is                                                                                     | Status                              |
| ------------------- | ---------------------------------------------------------------------------------------------- | ----------------------------------- |
| **Hosted iframe**   | The full flow inside your page. Fastest to ship.                                               | Live in preview; signed URLs coming |
| **SDK component**   | The flow as a component with lifecycle events and theming.                                     | Coming soon                         |
| **Standalone link** | You send the user to a hosted Rheon page and they return after. Useful where you cannot embed. | Coming soon                         |

## Embedding

```html theme={null}
<iframe
  src="https://widget.rheon.io/"
  allow="camera; microphone; geolocation; payment"
  style="height:100%;width:100%;border:none">
</iframe>
```

Two things about that `allow` list, both easy to miss:

* The bank path runs identity verification inside the frame. It needs the **camera**,
  and by default it needs **geolocation** for address verification. If the host page
  does not pass those through, verification fails for most users - see
  [Rheon ID](/rheon-id).
* The host page has to be served over HTTPS, or the browser refuses the permissions
  regardless of the `allow` attribute.

In production the URL is signed by your backend - single-use and short-lived - so the
amount, destination, and branding cannot be changed from the browser. That part is
still being built; until it ships, the preview takes plain parameters.

## Configuring it

Filtering (which chains and tokens a user sees), pre-filling (wallet, amount,
destination, email), locking fields so a user cannot change what you fixed, theming,
and lifecycle events are covered on [Integration options](/integration/options) and
[Widget](/integration/widget). Anything your backend must trust - crediting a user,
releasing an order - goes through the API or webhooks, never a browser event.

## Standalone

The same flow runs as a hosted page with no host product around it. Use it for a
payment link, a support-assisted deposit, or a market where you have no app surface
yet.