Snippet · PHP

Limit REST API Posts Per Page

Shared by Yusuf mudagal · May 3, 2026 · @rest_post_collection_params

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#REST API

Caps REST API post collection requests to a sensible maximum to avoid accidentally expensive API responses.

add_filter( 'rest_post_collection_params', 'wpfolks_limit_rest_posts_per_page' );

function wpfolks_limit_rest_posts_per_page( $params ) {
    if ( isset( $params['per_page']['maximum'] ) ) {
        $params['per_page']['maximum'] = 50;
    }

    return $params;
}