diff --git a/wp-content/plugins/favoritar-posts/favoritar-posts.php b/wp-content/plugins/favoritar-posts/favoritar-posts.php
new file mode 100644
index 00000000..e2abce1b
--- /dev/null
+++ b/wp-content/plugins/favoritar-posts/favoritar-posts.php
@@ -0,0 +1,19 @@
+<?php
+/*
+Plugin Name: Favoritar Posts via REST API
+Description: Permite que usuários logados favoritem posts usando a WP REST API.
+Version: 1.0
+Author: Napoleão Junio Soares Coelho
+*/
+
+if (!defined('ABSPATH')) {
+    exit;
+}
+
+require_once __DIR__ . '/includes/class-favoritos-repository.php';
+require_once __DIR__ . '/includes/class-favoritos-rest-controller.php';
+require_once __DIR__ . '/includes/class-favoritar-posts-plugin.php';
+
+Favoritar_Posts_Plugin::init();
+register_activation_hook(__FILE__, ['Favoritar_Posts_Plugin', 'activate']);
+register_uninstall_hook(__FILE__, ['Favoritar_Posts_Plugin', 'uninstall']);
\ No newline at end of file
diff --git a/wp-content/plugins/favoritar-posts/includes/class-favoritar-posts-plugin.php b/wp-content/plugins/favoritar-posts/includes/class-favoritar-posts-plugin.php
new file mode 100644
index 00000000..3a21cbed
--- /dev/null
+++ b/wp-content/plugins/favoritar-posts/includes/class-favoritar-posts-plugin.php
@@ -0,0 +1,42 @@
+<?php
+
+if (!defined('ABSPATH')) {
+    exit;
+}
+
+class Favoritar_Posts_Plugin
+{
+    private static $instance;
+    private $repository;
+    private $rest_controller;
+
+    private function __construct()
+    {
+        global $wpdb;
+        $this->repository = new Favoritos_Repository($wpdb);
+        $this->rest_controller = new Favoritos_REST_Controller($this->repository);
+
+        add_action('rest_api_init', [$this->rest_controller, 'register_routes']);
+    }
+
+    public static function init()
+    {
+        if (null === self::$instance) {
+            self::$instance = new self();
+        }
+    }
+
+    public static function activate()
+    {
+        global $wpdb;
+        $repository = new Favoritos_Repository($wpdb);
+        $repository->create_table();
+    }
+
+    public static function uninstall()
+    {
+        global $wpdb;
+        $repository = new Favoritos_Repository($wpdb);
+        $repository->drop_table();
+    }
+}
diff --git a/wp-content/plugins/favoritar-posts/includes/class-favoritos-repository.php b/wp-content/plugins/favoritar-posts/includes/class-favoritos-repository.php
new file mode 100644
index 00000000..975e5883
--- /dev/null
+++ b/wp-content/plugins/favoritar-posts/includes/class-favoritos-repository.php
@@ -0,0 +1,92 @@
+<?php
+
+if (!defined('ABSPATH')) {
+    exit;
+}
+
+class Favoritos_Repository
+{
+    private $wpdb;
+    private $table;
+
+    public function __construct($wpdb)
+    {
+        $this->wpdb = $wpdb;
+        $this->table = $this->wpdb->prefix . 'user_favorites';
+    }
+
+    public function create_table()
+    {
+        $charset_collate = $this->wpdb->get_charset_collate();
+        $sql = "CREATE TABLE {$this->table} (
+            id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
+            user_id bigint(20) unsigned NOT NULL,
+            post_id bigint(20) unsigned NOT NULL,
+            created_at datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            PRIMARY KEY  (id),
+            UNIQUE KEY user_post (user_id, post_id),
+            KEY post_id (post_id)
+        ) {$charset_collate};";
+
+        require_once ABSPATH . 'wp-admin/includes/upgrade.php';
+        dbDelta($sql);
+    }
+
+    public function drop_table()
+    {
+        $this->wpdb->query("DROP TABLE IF EXISTS {$this->table}");
+    }
+
+    public function toggle($user_id, $post_id)
+    {
+        $exists = (bool) $this->wpdb->get_var(
+            $this->wpdb->prepare(
+                "SELECT id FROM {$this->table} WHERE user_id = %d AND post_id = %d",
+                $user_id,
+                $post_id
+            )
+        );
+
+        if ($exists) {
+            $deleted = $this->wpdb->delete(
+                $this->table,
+                ['user_id' => $user_id, 'post_id' => $post_id],
+                ['%d', '%d']
+            );
+
+            if (false === $deleted) {
+                return new WP_Error('db_delete_error', 'Nao foi possivel remover o favorito.');
+            }
+
+            return 'removido';
+        }
+
+        $inserted = $this->wpdb->insert(
+            $this->table,
+            [
+                'user_id' => $user_id,
+                'post_id' => $post_id,
+                'created_at' => current_time('mysql'),
+            ],
+            ['%d', '%d', '%s']
+        );
+
+        if (false === $inserted) {
+            return new WP_Error('db_insert_error', 'Nao foi possivel favoritar o post.');
+        }
+
+        return 'adicionado';
+    }
+
+    public function get_user_favorite_ids($user_id)
+    {
+        $results = $this->wpdb->get_col(
+            $this->wpdb->prepare(
+                "SELECT post_id FROM {$this->table} WHERE user_id = %d ORDER BY created_at DESC",
+                $user_id
+            )
+        );
+
+        return array_map('intval', $results);
+    }
+}
diff --git a/wp-content/plugins/favoritar-posts/includes/class-favoritos-rest-controller.php b/wp-content/plugins/favoritar-posts/includes/class-favoritos-rest-controller.php
new file mode 100644
index 00000000..2768d0df
--- /dev/null
+++ b/wp-content/plugins/favoritar-posts/includes/class-favoritos-rest-controller.php
@@ -0,0 +1,101 @@
+<?php
+
+if (!defined('ABSPATH')) {
+    exit;
+}
+
+class Favoritos_REST_Controller
+{
+    private $namespace = 'favoritos/v1';
+    private $repository;
+
+    public function __construct(Favoritos_Repository $repository)
+    {
+        $this->repository = $repository;
+    }
+
+    public function register_routes()
+    {
+        register_rest_route($this->namespace, '/toggle/(?P<post_id>\d+)', [
+            'methods' => 'POST',
+            'callback' => [$this, 'handle_toggle'],
+            'permission_callback' => [$this, 'check_permissions'],
+            'args' => [
+                'post_id' => [
+                    'validate_callback' => function ($param) {
+                        return is_numeric($param) && $param > 0;
+                    },
+                ],
+            ],
+        ]);
+
+        register_rest_route($this->namespace, '/list', [
+            'methods' => 'GET',
+            'callback' => [$this, 'handle_list'],
+            'permission_callback' => [$this, 'check_permissions'],
+        ]);
+    }
+
+    public function check_permissions()
+    {
+        return is_user_logged_in();
+    }
+
+    public function handle_toggle($request)
+    {
+        $user_id = get_current_user_id();
+        $post_id = (int) $request['post_id'];
+
+        $post = get_post($post_id);
+        if (!$post || 'publish' !== $post->post_status) {
+            return new WP_Error('invalid_post', 'Post invalido.', ['status' => 400]);
+        }
+
+        $status = $this->repository->toggle($user_id, $post_id);
+        if ($status instanceof WP_Error) {
+            return $status;
+        }
+
+        $favorites = $this->format_posts(
+            $this->repository->get_user_favorite_ids($user_id)
+        );
+
+        return rest_ensure_response([
+            'status' => $status,
+            'favoritos' => $favorites,
+        ]);
+    }
+
+    public function handle_list($request)
+    {
+        $user_id = get_current_user_id();
+        $favorites = $this->format_posts(
+            $this->repository->get_user_favorite_ids($user_id)
+        );
+
+        return rest_ensure_response($favorites);
+    }
+
+    private function format_posts(array $ids)
+    {
+        if (empty($ids)) {
+            return [];
+        }
+
+        $posts = get_posts([
+            'post__in' => $ids,
+            'post_type' => 'post',
+            'post_status' => 'publish',
+            'orderby' => 'post__in',
+            'posts_per_page' => count($ids),
+        ]);
+
+        return array_map(function ($post) {
+            return [
+                'ID' => $post->ID,
+                'title' => get_the_title($post),
+                'link' => get_permalink($post),
+            ];
+        }, $posts);
+    }
+}