ChazUK

Returns Yoast post or page metadata in a normal post or page request. Stores the metadata in the yoast_meta field of the returned data.

WP API Yoast SEO

Returns Yoast post or page metadata in a normal post or page request.

Andrew MAGIK

This plugin will add separate WordPress REST API (v2) endpoint, with all available terms (all used categories, tags and custom taxonomies). 
It is very useful when you need to create some filters into your app, with lists of all available terms.
For example what can you get, using <code>wp-json/wp/v2/all-terms</code> request (where categories and tags – standart taxonomies, and technologies – custom created taxonomy):
<pre><code>{
 categories: [
 {
 term_id: 9,
 name: "Downloads",
 slug: "downloads",
 term_group: 0,
 term_taxonomy_id: 9,
 taxonomy: "category",
 description: "",
 parent: 0,
 count: 1,
 filter: "raw"
 },
 term_id: 1,
 name: "Uncategorized",
 slug: "uncategorized",
 term_group: 0,
 term_taxonomy_id: 1,
 taxonomy: "category",
 description: "",
 parent: 0,
 count: 4,
 filter: "raw"
 },
 {
 term_id: 3,
 name: "Wordpress",
 slug: "wordpress",
 term_group: 0,
 term_taxonomy_id: 3,
 taxonomy: "category",
 description: "",
 parent: 0,
 count: 2,
 filter: "raw"
 }
 ],
 tags: [
 {
 term_id: 16,
 name: "First tag",
 slug: "first-tag",
 term_group: 0,
 term_taxonomy_id: 16,
 taxonomy: "post_tag",
 description: "",
 parent: 0,
 count: 1,
 filter: "raw"
 },
 {
 term_id: 17,
 name: "Second tag",
 slug: "second-tag",
 term_group: 0,
 term_taxonomy_id: 17,
 taxonomy: "post_tag",
 description: "",
 parent: 0,
 count: 1,
 filter: "raw"
 }
 ],
 technologies: [
 {
 term_id: 15,
 name: "jQuery",
 slug: "jquery",
 term_group: 0,
 term_taxonomy_id: 15,
 taxonomy: "technologies",
 description: "",
 parent: 0,
 count: 1,
 filter: "raw"
 },
 {
 term_id: 14,
 name: "Wordpress",
 slug: "wordpress",
 term_group: 0,
 term_taxonomy_id: 14,
 taxonomy: "technologies",
 description: "",
 parent: 0,
 count: 1,
 filter: "raw"
 }
 ]
}
</code></pre>
Check my other useful rest-api plugins: <a href="https://wordpress.org/plugins/tags/andrew-magik-rest-api" rel="ugc">https://wordpress.org/plugins/tags/andrew-magik-rest-api</a>.

WP REST API – All Terms

Very useful for creating tag cloud, or filters



This plugin include all existing terms into separate WordPress REST API (v2) endpoint.

WP API Yoast SEO vs WP REST API – All Terms