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 1,983,303 websites that are Wordpress Public API Customers. We know of 1,236,707 live websites using Wordpress Public API and an additional 746,596 sites that used Wordpress Public API historically and 909,890 websites in the United States.
Get a list of 1,983,303 websites using Wordpress Public API which includes location information, hosting data, contact details, 1,236,707 currently live websites and an additional 349,536 domains that redirect to sites in this list. 746,596 sites that used this technology previously and 909,890 websites in the United States currently using Wordpress Public API.