Insertar publicaciones de categoría y subcategorías en otro sitio web

[eviltrout (Robin Ward)]

It sounds like you are looking for this:

Embedding a list of Discourse Topics in another site

If you grab the latest builds of Discourse you’ll get a the ability to embed topic lists in other sites via some simple Javascript and HTML. The typical use case for this is a blog or other content driven site, where you want a widget on the side of the screen that lists topics. You can filter by category, tag, or any of the other public filter options available. How to Embed a list of Topics First, you must enable the embed topics list site setting. Then, in your HTML add a <script> tag tha…

There’s an example there of embedding a list of topics by category.