This plugin is outdated and might not be supported anymore
WP REST API – Post Type Taxonomies

WP REST API – Post Type Taxonomies

Details
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This plugin will add separate WordPress REST API (v2) endpoint, with all relations between existing post types and attached to them terms (taxonomies).
It is very useful when you need to create some filters, when you want to know what taxonomies are attached to the current post type.

For example what can you get, using wp-json/wp/v2/post-type-taxonomies request (empty results not included):

{
    post: [
        "category",
        "post_tag",
        "post_format"
    ],
    portfolio: [
        "technologies",
        "clients",
        "work_types"
    ]
}

Check my other useful rest-api plugins: https://wordpress.org/plugins/tags/andrew-magik-rest-api.

Details

Plugin code:
wp-rest-api-post-type-taxonomies
Plugin version:
1.0
Outdated:
Yes
WP version:
4.4 or higher
PHP version:
or higher
Test up to WP version:
4.4.33
Total installations:
10
Last updated:
2016-03-01
Rating:
Times rated:
1
api
custom-post-type
post-type
rest-api
wp-api