Add oEmbed Support for Instagram in WordPress
oEmbed Instagram is a new plugin that allows you to easily embed Instagram images in WordPress by simply pasting the URL in your post on its own line. This Instagram WordPress plugin will automatically pull your Instagram caption in for the caption of the photo in your blog post.
Simply install and activate and you’ll be able to start pasting in Instagram photo URLs. Please note that PHP5 is required for this plugin to work. You can download oEmbed Instagram for free from the WordPress plugin repository.