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Best API authentication plugins for WordPress

The most popular API authentication plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. WP REST API Key Authentication leads with 10+ active installs. All 1 plugins tagged “api authentication” are below, with figures from WordPress.org that update every day.

Installs aren’t everything: a recent release, a “Tested up to” that matches the current WordPress, and support threads that get resolved show a plugin is looked after. Open any plugin for its downloads, rank history and alternatives.

Research this niche or see all plugins.

Top 1 API authentication plugins

  1. 1.
    WP REST API Key Authentication

    The most installed API authentication plugin, with 10+ active installs. No reviews yet, last updated 1 year ago. Tested only up to WordPress 6.7.11.

All 1 plugins tagged “api authentication”