Michael Torbert

Once activated, only posts from the current category are displayed in your loop (no posts from sub cats). 
That’s all it does. No options. If you find you need options, let me know and I’ll build them into it.
As of 0.4 I remove the filter after the main query is built so that it doesn’t interfere with widgets. 
If you have a custom query or call wp_query on a category archive template, you’ll need to add and remove the filters before and after your query. Below is an example of how to do this if you use wp_query. Again, this is not necessary unless you have modified queries in a template file.
<pre><code>add_filter( 'posts_where', 'ft_nscp_mod_where' );
query_posts( array( 'your-custom' => 'args' ) );
remove_filter( 'posts_where', 'ft_nscp_mod_where' );
</code></pre>
Its important that you remove what you add.

No Sub-Category Posts in Loops

Once activated, only posts from the current category are displayed in your loop (no posts from sub cats).

Lew Ayotte

catnip enables you to add cute and funny images of random cats in your WordPress theme sidebar or in any page with the catnip shortcode.
Current API functionality built into catnip from <a href="http://thecatapi.com/" rel="nofollow ugc">The Cat API</a>:
<ul>
<li>Currently the only functionality built into catnip is the ability to get 1-100 random images from <a href="http://thecatapi.com/" rel="nofollow ugc">The Cat API’s</a> “get” method.</li>
</ul>
This plugin is part of the <a href="http://wptraining.lewayotte.com" rel="nofollow ugc">Free WP Training</a> I offered at UGA. Check out the site for the 4 day training videos and resources.

catnip

With catnip and The Cat API it's Caturday everyday in WordPress!

No Sub-Category Posts in Loops vs catnip