laravel-checkRecaptcha.php

 // Controller

 // Metodo do controle que faz a chacagem

  protected function checkRecaptcha($token, $ip)
    {
        $response = (new Client)->post('https://www.google.com/recaptcha/api/siteverify', [
           'form_params' => [
               'secret' => config('services.recaptcha.secret'),
               'response' => $token,
               'remoteip' => $ip,
           ],
       ]);

       $response = json_decode((string) $response->getBody(), true);

       return $response['success'];
    }

    // Metodo que faz a chamada para verificar o recaptcha
    public function login(Request $request, Guard $auth, ManagerFractal $manager)
    {
        if (config('services.recaptcha.enabled') && !$this->checkRecaptcha($request->get('token'), $request->ip())) {
            return response()->json('Recaptcha inválido.', 500);
        }

        // Continue a parte para checar seu login aqui
    }


    
 // services.php


    'recaptcha' => [
       'enabled' => env('RECAPTCHA_ENABLED', true),
       'key' => env('RECAPTCHA_SITE_KEY'),
       'secret' => env('RECAPTCHA_SECRET_KEY'),
    ],

 // env
    RECAPTCHA_ENABLED=true
    RECAPTCHA_SITE_KEY=6LeyiC4UAAAAAK5XGb2IBhnY9M0ZtH76wYNmIUW4
    RECAPTCHA_SECRET_KEY=6LeyiC4UAAAAABNa7fh3Q14JLKhc6_gFL9jQXUk9