WP REST API Playground

WP REST API Playground Test and explore the WordPress REST API directly from the frontend. Description WP REST API Playground provides a developer-friendly interface accessible at /rest-api-playground/ on your WordPress site. It lets you browse every registered REST API endpoint, build requests with a guided form, authenticate with Application Passwords, and inspect responses — all without leaving the browser. Features - Three-panel layout — endpoint browser on the left, request builder in the centre, response viewer on the right. - Resizable, collapsible panels — drag either divider to resize, double-click to reset, or collapse a side panel entirely. Widths persist in localStorage across refreshes and return visits, and are applied before first paint so the layout never jumps. Dividers are keyboard-operable (arrow keys, Home/End) and expose the ARIA separator pattern; below 900px the layout stacks and the handles are removed. - Full endpoint discovery — all registered REST API routes (core and plugin-added) are loaded automatically and grouped alphabetically by resource type (Posts, Pages, Users, Media, Comments, and more). - Live search — filter endpoints by route path or ca