Justin Kopepasah

A simple WordPress plugin that adds a gist shortcode for getting a single Gist and the files within. It uses the Gist V3 API. Has the option for authentication via Personal Access Token.
Usage 
Get a Gist using a WordPress shortcode: <code>[gist id=00000000 file=file-name.php]</code>
The Gist will return as plain text. I recommend using WordPress plugin Syntaxhighlighter Evolved to highlight the Gist. See below for details.
Visit [Get Gist on Github](http://https://github.com/kopepasah/get-gist “Get Gist”) for more options and information.

Get Gist

A simple WordPress plugin that adds a gist shortcode for getting a single Gist and the files within.

pinchoalex

Unlike the standard embedding method that use script like this
<pre><code><script src="https://gist.github.com/..."></script>
</code></pre>
to embed gist code, Gist API Code insert plugin inserts code directly in to your posts using simple shortcode and highlights it with prism code highlighter.
Examples
Add all files from a gist:
<pre><code>[apCI id="123456789"]
</code></pre>
Add single file from a gist:
<pre><code>[apCI id="123456789" file="filename.php"]
</code></pre>
Add single file from a gist with raw file link:
<pre><code>[apCI id="123456789" file="filename.php" raw="yes" ]
</code></pre>

Gist API Code insert

Inserts Github Gist code directly in to your posts via shortcode without using js embed script

Get Gist vs Gist API Code insert