IndieAuth

The plugin turns WordPress into an IndieAuth endpoint. This can be used to act as an authentication mechanism for WordPress and its REST API, as well as an identity mechanism for other sites. It uses the URL from the profile page to identify the blog user or your author url. We recommend your site be served over https to use this.
measure then updates must be made.You can also install this plugin to enable web sign-in for your site using your domain.