Unfortunately I don't know a ton about REST API and am trying to get this to work properly for another developer.
Long story short, their application is trying to access the site using mysite/index.php/rest/V1/integration/admin/token and they are getting "Access Denied." I was able to to remove the index.php and just call from mysite/rest/V1/integration/admin/token and can generate the token necessary.
My question is if there's anything I can do to get the API to work on the URL string that has index.php in it? Their application requires it.
Any advice would be helpful. Thanks!