Our REST API allows you to view, create or edit content on any WordPress.com site, as well as any self-hosted (WordPress.org) site connected via Jetpack.
https://developer.wordpress.com/docs/api/
JavaScript Libraries and Functions
Get access to data on 1,193,001 websites that are Wordpress Public API Customers. We know of 801,869 live websites using Wordpress Public API and an additional 391,132 sites that used Wordpress Public API historically and 599,987 websites in the United States.
Get a list of 1,193,001 websites using Wordpress Public API which includes location information, hosting data, contact details, 801,869 currently live websites and an additional 153,592 domains that redirect to sites in this list. 391,132 sites that used this technology previously and 599,987 websites in the United States currently using Wordpress Public API.