contabilidad/ui/setup/setups/03_web.php

<?php
use Psr\Container\ContainerInterface as Container;

return [
    Slim\Views\Blade::class => function(Container $c) {
        return new Slim\Views\Blade(
            $c->get('folders')->templates,
            $c->get('folders')->cache,
            null,
            [
                'api_key' => $c->get('API_KEY'),
                'urls' => $c->get('urls')
            ]
        );
    },
    GuzzleHttp\Client::class => function(Container $c) {
        return new GuzzleHttp\Client([
            'base_uri' => 'http://api-proxy',
            'headers' => [
                'Authorization' => 'Bearer ' . $c->get('API_KEY')
            ]
        ]);
    }
];