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

# CrossmintCheckoutDefaultMethod

> Flutter Enum

**Enum**

Typed default payment method — which tab/method the hosted checkout opens on.

```dart theme={null}
enum CrossmintCheckoutDefaultMethod
```

## Constructors

### CrossmintCheckoutDefaultMethod

```dart theme={null}
const CrossmintCheckoutDefaultMethod(this.wireValue)
```

Creates an enum variant with the wire-level string Crossmint expects.

## Properties

### wireValue

```dart theme={null}
final String wireValue
```

Wire-level string value (`"fiat"` or `"crypto"`) sent to the Crossmint-hosted page.

## Functions

### fiat

```dart theme={null}
fiat('fiat'),

/// Open the checkout on crypto (on-chain payment).
crypto('crypto')
```

Open the checkout on fiat (credit card / Apple Pay / Google Pay).