JS Morisset

Extends the WordPress REST API post, term, and user query results:
<ul>
<li>The <code>html</code> array includes HTML formatted meta tags and Schema JSON-LD (aka LD+JSON) scripts, as they appear in the webpage head section.</li>
<li>The <code>json</code> array provides Schema JSON-LD (aka LD+JSON) scripts in their decoded format.</li>
<li>The <code>parts</code> array offers meta tag attributes (aka “the parts”) as arrays, making it easier to find and use specific meta tag values.</li>
</ul>
There is no add-on settings page for this plugin – simply install and activate the plugin.

<h3>WPSSO Core Required</h3>
WPSSO REST API is an add-on for the <a href="https://wordpress.org/plugins/wpsso/" rel="ugc">WPSSO Core plugin</a>, which creates extensive and complete structured data to present your content at its best for social sites and search results – no matter how URLs are shared, reshared, messaged, posted, embedded, or crawled.

WPSSO REST API

Extends the WordPress REST API post, term, and user query results with an array of meta tags and Schema JSON-LD markup.

Purab

Boost your wordpress SEO: Full SEO features Meta Tags, webmaster tools settings, Social AuthorShip for Facebook, Twitter and Google Plus and XML sitemap
You can enter your meta keywords and description for your homepage.
This plugin will add different Meta description for each individual post as your excerpt of your post.
This will help your blog to rank better in google. You can easily increase your blog traffic using this plugin.
New Premium Features Added
WebMaster tool and meta tag added
Social AuthorShip meta Tags added for Facebook, Twitter and Google Plus
XML sitmap added
Following Sites are using SEO meta tags: 
Demo URL: 
http://wpapi.com
<a href="http://wpapi.com/how-to-use-seo-meta-tags-wordpress-plugin/" rel="nofollow ugc">Step by step installation instructions >></a>
Tested upto 4.0
<a href="http://wpapi.com/contact/" rel="nofollow ugc">Click here for customer support >></a>
<h4>Functionality</h4>
This plugin will add different Meta description for each individual post as your excerpt of your post.
<h3>Help</h3>
For help and support please contact us at contact [at] digcms.com 
<a href="http://wpapi.com/contact/" rel="nofollow ugc">Click here for customer support >></a>

Seo Meta Tags

Boost your wordpress SEO: Full SEO features Meta Tags, webmaster tools settings, Social AuthorShip for Facebook, Twitter and Google Plus and XML sitem …

WPSSO REST API vs Seo Meta Tags