Laravel-swap

// /config/app.php
'providers' => [
    Swap\Laravel\SwapServiceProvider::class
],

'aliases' => [
    'Swap' => Swap\Laravel\Facades\Swap::class
]

// /boostrap/app.php

// Register the facade
$app->withFacades(true, [
    Swap\Laravel\Facades\Swap::class => 'Swap'
]);

// Load the configuration
$app->configure('swap');

// Register the service provider
$app->register(Swap\Laravel\SwapServiceProvider::class);

// Get the latest EUR/USD rate
$rate = Swap::latest('EUR/USD');

// 1.129
$rate->getValue();

// 2016-08-26
$rate->getDate()->format('Y-m-d');

// Get the EUR/USD rate yesterday
$rate = Swap::historical('EUR/USD', Carbon\Carbon::yesterday());