Nick van de Veerdonk

An HTML sitemap is a list of names and links of your pages and posts in the front end of your website. It can be useful for users to get a good overview of the content you’re presenting. For bots it is equally useful since the internal links send them to the farest corners of your website, which could help indexation greatly.
Strictly taken AMP does not need a sitemap (HTML or XML) if the content is marked up correctly: engines know where AMP content is by this piece of code present in your regular pages:
<pre><code><link rel="amphtml" href="https://www.example.com/url/to/amp/document.html">
</code></pre>
That being said there could be several reasons to use an AMP HTML Sitemap:
<ol>
<li>
You want your AMP content to be indexed faster and more regulary. In case you don’t have much traffic, external links or good internal linking structure indexation could take a while. An HTML sitemap will improve your internal links and if you add the URL of the sitemap to your current XML sitemap plugin, search engines will gain information on the AMP content by automatic submission of your XML sitemap. (see ‘Addditonal tips’ under installation tab)
</li>
<li>
You have ‘stand alone’ AMP content. Seen as there are no links pointing to content that is only reachable by AMP (because they miss the link from the regular page and naturally don’t occur in menus) it can take a long time for them to be indexed.
</li>
<li>
You have an HTML sitemap for regular content and simply wish to add your AMP content to it
</li>
</ol>
And in that case, this lightweight plugin is for you.
This plugin will not be supported, I will however try to answer all question in the comment section of the <a href="https://jaaadesign.nl/en/blog/amp-sitemap/" rel="nofollow ugc">plugin website</a> and create a FAQ.
Matt Cutts on HTML and XML sitemaps 
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AMP HTML Sitemap

Only four stars so far, because although the description  says it does posts and pages, I only get posts.

This plugin worked well. After adding the shortcode to my existing sitemap page, there were new links appended with /amp to the AMP posts.  

Great idea for a plugin, and I just now submitted the sitemap page to "Fetch as Google" in the Search Console. I can't yet say if it will speed up Google's  discovery, but I do suspect it will.

***Update*** 
In 24 hours, AMP pages in Google's index went from "none found" for three domains, to well over 50%.  Clearly this plugins does what it's intended to do - helps Google get AMP pages indexed faster.

Worked Perfectly

The links have incorrect endings.
Should be:
site.url/stat-name.html

Actual result:
site.url/stat-name.htmlamp

The links have incorrect endings

Generates a customizable list of your AMP posts, pages and custom post types for SEO/indexing benefits, to be added to the content by shortcode.

rbhavesh

To work with <a href="http://templatic.com/" rel="nofollow ugc">Templatic</a> AMP plugin just type ‘amp’ keyword after any archive, category, details or any page URL it will display AMP version of that page.
After activating this plugin go to Plugin’s settings >> and make sure that “AMP” option is enabled at your site to use this plugin.
You can see different options here, like AMP theme, Header code and Footer code.
AMP Theme : By default, it will use ‘templatic’ template which is available on ” plugins/Templatic-AMP/templates ” this folder.
Once this plugin is activated at your site your site will dynamically generate AMP version. If you want to check the AMP version you need to append ” /amp ” after your page URL. if your page URL is ” www.yourdomainname.com/page1/ ” then you need to add the “/amp” after this URL as shown here. ” www.yourdomainname.com/page1/amp/ “. It will load the pages instantly with mobile optimised content at your site.
You can change style add your style into ” \plugins\Templatic-Google-AMP\templates\templatic\style.php ” this file, if you want additional styling.
One of our customers asked “ whether this theme supports Google AMP? ” in a pre-sales question. Which makes us curious and digging into it, it looks like Google AMP is targeted towards mostly the content-only, news and article content so that the user can read the news or article faster and not for the content and images rich, dynamic pages.
AMP means Accelerated Mobile Pages, in other words, it strips down all the design and functionality to show content only page to the user as soon as possible. Certainly, this means it is not built for advanced WordPress sites with heavy content.
However, what if you want to use Google AMP on a regular WordPress blog? We looked at the possible options and there exists an official WordPress plugin that lets enables google AMP on your site but only for blog posts. It wouldn’t work for different post types & taxonomies, pages or category archives.
We believe WordPress pages and WordPress posts under Taxonomies should be able to use the power of Google AMP.
Any WordPress blog once gets past few hundred blog posts might need to separate content into different taxonomies to keep things organised. For example, if you are running a Medical portal with hundreds of posts, you might have different taxonomies such as diseases, nutrition etc. so you can better manage your WordPress blog.
Also, a content heavy WordPress blog might have 15-20 important pages, mostly content but they are not a WordPress posts.
So we upgraded the plugin to support WordPress Pages and taxonomies.
We are happy to release an upgraded, Free WordPress plugin today that takes Google AMP further by supporting the missing pieces – WordPress Pages, Taxonomies and category archives.
How to use this Templatic Google AMP WordPress plugin?
<ol>
<li>Download this Templatic Google AMP Plugin from above link.</li>
<li>Connect to your WordPress dashboard (wp-admin) and navigate to Plugins >> Add New Plugin >> Upload Plugin >> Now upload the downloaded (Templatic-Google-AMP.zip) file >> Click on “ Install Now ”</li>
<li>Once you install this plugin successfully, click on “ Activate Plugin ”.</li>
<li>After activating this plugin go to Plugin’s settings >> and make sure that “ AMP ” option is enabled at your site to use this plugin.</li>
<li>You can see different options here, like AMP theme, Header code and Footer code.</li>
<li>AMP theme: This option is used to change the template. If you want to change the default template “ templatic ” then please go to this mentioned file location and place your template here. 
File location: “ plugins\Templatic-Google-AMP\templates\ ” 
Note: You need to place two files “header.php” and “ footer.php ” to your template files from the default template “ templatic ”</li>
<li>Header Code: if you want to use the Google Analytics for a header then you can place your code in this area.</li>
<li>Footer Code: if you want to use the Google Analytics for footer then you can place your code in this area. 
Once this plugin is activated at your site your site will dynamically generate AMP version. If you want to check the AMP version you need to append “ /amp ” after your page URL. if your page URL is “ www.yourdomainname.com/page1/ ” then you need to add the “ /amp ” after this URL as shown here. “ www.yourdomainname.com/page1/amp/ ”. It will load the pages instantly with mobile optimised content at your site.</li>
</ol>

Templatic-Google-AMP

To work with Templatic AMP plugin just type 'amp' keyword after any archive, category, details or any page URL it will display AMP version o …

AMP HTML Sitemap vs Templatic-Google-AMP