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 1,493,558 websites that are Wordpress Public API Customers. We know of 988,977 live websites using Wordpress Public API and an additional 504,581 sites that used Wordpress Public API historically and 763,379 websites in the United States.
Get a list of 1,493,558 websites using Wordpress Public API which includes location information, hosting data, contact details, 988,977 currently live websites and an additional 202,996 domains that redirect to sites in this list. 504,581 sites that used this technology previously and 763,379 websites in the United States currently using Wordpress Public API.