simple-php-router/demo-project/app/Middlewares/CsrfVerifier.php

<?php
namespace Demo\Middlewares;

use Pecee\Http\Middleware\BaseCsrfVerifier;

class CsrfVerifier extends BaseCsrfVerifier {

    /**
     * CSRF validation will be ignored on the following urls.
     */
    protected $except = ['/api/*'];

}