I am accessing Magento rest APIs in my live server and I am getting response code 503 for that, In my localhost that works fine and my Magento site also works fine I have also tried,
php bin/magento cache:clean
and
php bin/magento cache:flush
also if I am accessing APIs in browser it also works fine not getting what is the problem,
its saying Checking your browser before accessing www.yourdomain.com in html response but not getting that error in localhost or postman.