WordPress REST API: How /wp-json/ Lets You Access Site Content Without SQL

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WordPress has shipped a built-in REST API since version 4.7 in 2016, allowing developers to retrieve site content such as posts, pages, and media via standard HTTP requests without plugins or direct database queries. Appending /wp-json/ to any WordPress site URL exposes available endpoints, with /wp-json/wp/v2/posts being the most commonly used, returning published post data as JSON. Public endpoints require no authentication, while actions like creating, updating, or fetching draft content do. The _embed query parameter allows developers to retrieve related data such as featured images and category names in a single request, avoiding the inefficiency of multiple follow-up calls. This mechanism is used in real-world applications, such as dynamically populating a landing page's latest-posts section by querying a WordPress instance's REST API directly.

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