diff --git a/admin/class-robotstxt-manager-installer.php b/admin/class-robotstxt-manager-installer.php
index 3ad4bb3..2714e78 100644
--- a/admin/class-robotstxt-manager-installer.php
+++ b/admin/class-robotstxt-manager-installer.php
@@ -54,19 +54,297 @@ class Robotstxt_Manager_Installer {
 		$name = $this->entry_name( $entry, $slug );
 		$this->ensure_plugin_functions();
 
+		// Install missing dependencies first (ecosystem catalog plugins via
+		// the store, WordPress.org plugins via their repository ZIPs).
+		$deps_installed = $this->install_dependencies( $slug );
+
+		if ( is_wp_error( $deps_installed ) ) {
+			$this->redirect_error( $deps_installed->get_error_message() );
+		}
+
 		$result = $this->download_and_install( $slug );
 
 		if ( is_wp_error( $result ) ) {
 			$this->redirect_error( $result->get_error_message() );
 		}
 
-		$this->redirect_success(
-			sprintf(
-				/* translators: %s: plugin name. */
-				__( '%s installed. Activate it from the list below.', 'robotstxt-manager' ),
-				$name
+		$message = sprintf(
+			/* translators: %s: plugin name. */
+			__( '%s installed. Activate it from the list below.', 'robotstxt-manager' ),
+			$name
+		);
+
+		if ( is_string( $deps_installed ) && '' !== $deps_installed ) {
+			$message .= ' ' . $deps_installed;
+		}
+
+		$this->redirect_success( $message );
+	}
+
+	/**
+	 * Installs the plugin's missing dependencies, dependencies first.
+	 *
+	 * Each dependency slug is resolved either against the store catalog
+	 * (installed through the store's download endpoint, like any catalog
+	 * plugin) or, when not in the catalog, against WordPress.org (installed
+	 * from the repository's plugin ZIP).
+	 *
+	 * @param string $slug Plugin slug being installed.
+	 *
+	 * @return string|WP_Error Installed-dependency names for the notice, '' when none were needed.
+	 */
+	private function install_dependencies( string $slug ) {
+		$deps = $this->dependencies_for( $slug );
+
+		if ( array() === $deps ) {
+			return '';
+		}
+
+		$installed_names = array();
+
+		foreach ( $deps as $dep_slug ) {
+			if ( '' !== $this->find_plugin_file( $dep_slug ) ) {
+				continue; // Already installed.
+			}
+
+			$result = $this->install_one_dependency( $dep_slug );
+
+			if ( is_wp_error( $result ) ) {
+				/* translators: %s: dependency slug. */
+				$detail = sprintf( __( 'Could not install the required plugin %s.', 'robotstxt-manager' ), $dep_slug );
+
+				return new WP_Error(
+					'robotstxt_manager_dependency',
+					$detail . ' ' . $result->get_error_message()
+				);
+			}
+
+			$installed_names[] = $result;
+		}
+
+		if ( array() === $installed_names ) {
+			return '';
+		}
+
+		/* translators: %s: list of installed dependency names. */
+		return sprintf( __( 'Installed required plugins: %s.', 'robotstxt-manager' ), implode( ', ', $installed_names ) );
+	}
+
+	/**
+	 * Installs a single dependency: catalog plugin via the store, else wp.org.
+	 *
+	 * @param string $dep_slug Dependency slug.
+	 *
+	 * @return string|WP_Error The dependency's display name on success.
+	 */
+	private function install_one_dependency( string $dep_slug ) {
+		if ( null !== $this->find_catalog_entry( $dep_slug ) ) {
+			return $this->install_via_store( $dep_slug );
+		}
+
+		// Not in the catalog — treat as a WordPress.org plugin.
+		return $this->install_via_wordpress_org( $dep_slug );
+	}
+
+	/**
+	 * Installs a dependency that exists in the store catalog.
+	 *
+	 * @param string $dep_slug Dependency slug.
+	 *
+	 * @return string|WP_Error Dependency name on success.
+	 */
+	protected function install_via_store( string $dep_slug ) {
+		$result = $this->download_and_install( $dep_slug );
+
+		if ( is_wp_error( $result ) ) {
+			return $result;
+		}
+
+		$entry = $this->find_catalog_entry( $dep_slug );
+
+		return $this->entry_name( is_array( $entry ) ? $entry : null, $dep_slug );
+	}
+
+	/**
+	 * Installs a dependency that is not in the catalog from WordPress.org.
+	 *
+	 * @param string $dep_slug wp.org plugin slug.
+	 *
+	 * @return string|WP_Error Plugin name on success.
+	 */
+	protected function install_via_wordpress_org( string $dep_slug ) {
+		return $this->install_wporg_zip( $dep_slug );
+	}
+
+	/**
+	 * Resolves a plugin's dependency slugs (parsed, deduplicated, deps-first
+	 * order, self-references dropped).
+	 *
+	 * @param string $slug Plugin slug.
+	 *
+	 * @return list<string> Dependency slugs.
+	 */
+	private function dependencies_for( string $slug ): array {
+		$all     = array( $slug => true );
+		$queue   = array( $slug );
+		$ordered = array();
+
+		while ( ! empty( $queue ) ) {
+			$current = array_shift( $queue );
+
+			foreach ( $this->raw_dependencies_of( $current ) as $dep ) {
+				if ( isset( $all[ $dep ] ) ) {
+					continue; // Already seen: self, duplicate, or cycle.
+				}
+
+				$all[ $dep ] = true;
+				$ordered[]   = $dep;
+				$queue[]     = $dep;
+			}
+		}
+
+		// Dependencies discovered later are deeper — reverse so dependencies
+		// of dependencies install first.
+		return array_reverse( $ordered );
+	}
+
+	/**
+	 * Reads the raw requires-plugins list of a catalog entry.
+	 *
+	 * @param string $slug Plugin slug.
+	 *
+	 * @return list<string> Dependency slugs (unresolved).
+	 */
+	private function raw_dependencies_of( string $slug ): array {
+		$entry = $this->find_catalog_entry( $slug );
+
+		if ( null === $entry ) {
+			return array(); // wp.org plugin: dependencies come from its own headers on install.
+		}
+
+		$raw = $entry['requires_plugins'] ?? '';
+		$raw = is_string( $raw ) ? $raw : '';
+
+		if ( '' === $raw ) {
+			return array();
+		}
+
+		$slugs = array();
+		foreach ( explode( ',', $raw ) as $part ) {
+			$dep = sanitize_key( trim( $part ) );
+			if ( '' !== $dep ) {
+				$slugs[ $dep ] = true;
+			}
+		}
+
+		return array_keys( $slugs );
+	}
+
+	/**
+	 * Installs a WordPress.org plugin by slug via plugins_api + Plugin_Upgrader.
+	 *
+	 * @param string $slug wp.org plugin slug.
+	 *
+	 * @return string|WP_Error Plugin name on success.
+	 */
+	private function install_wporg_zip( string $slug ) {
+		$this->ensure_plugin_functions();
+
+		if ( ! function_exists( 'plugins_api' ) ) {
+			require_once ABSPATH . 'wp-admin/includes/plugin-install.php';
+		}
+
+		$api = plugins_api(
+			'plugin_information',
+			array(
+				'slug'   => $slug,
+				'fields' => array(
+					'sections'   => false,
+					'versions'   => false,
+					'downloaded' => false,
+					'rating'     => false,
+				),
 			)
 		);
+
+		if ( is_wp_error( $api ) ) {
+			/* translators: %s: error message from WordPress.org. */
+			return new WP_Error( 'robotstxt_manager_wporg', sprintf( __( 'WordPress.org lookup failed: %s', 'robotstxt-manager' ), $api->get_error_message() ) );
+		}
+
+		$download_link = is_object( $api ) && isset( $api->download_link ) && is_string( $api->download_link )
+			? $api->download_link
+			: '';
+
+		if ( '' === $download_link ) {
+			/* translators: %s: plugin slug. */
+			return new WP_Error( 'robotstxt_manager_wporg', sprintf( __( 'No download found on WordPress.org for %s.', 'robotstxt-manager' ), $slug ) );
+		}
+
+		$tmp_file = wp_tempnam( $slug . '.zip' );
+
+		if ( ! $tmp_file ) {
+			return new WP_Error( 'robotstxt_manager_temp', __( 'Could not create a temporary file for download.', 'robotstxt-manager' ) );
+		}
+
+		$response = wp_remote_get(
+			$download_link,
+			array(
+				'timeout'  => 300,
+				'stream'   => true,
+				'filename' => $tmp_file,
+			)
+		);
+
+		if ( is_wp_error( $response ) ) {
+			wp_delete_file( $tmp_file );
+
+			/* translators: %s: HTTP transport error message. */
+			return new WP_Error( 'robotstxt_manager_download', sprintf( __( 'Download failed: %s', 'robotstxt-manager' ), $response->get_error_message() ) );
+		}
+
+		if ( 200 !== (int) wp_remote_retrieve_response_code( $response ) ) {
+			wp_delete_file( $tmp_file );
+
+			/* translators: %d: HTTP status code. */
+			return new WP_Error( 'robotstxt_manager_http', sprintf( __( 'Download failed (HTTP %d).', 'robotstxt-manager' ), (int) wp_remote_retrieve_response_code( $response ) ) );
+		}
+
+		if ( ! $this->is_valid_zip( $tmp_file ) ) {
+			wp_delete_file( $tmp_file );
+
+			return new WP_Error( 'robotstxt_manager_zip', __( 'The store returned an invalid file.', 'robotstxt-manager' ) );
+		}
+
+		$upgrader = new Plugin_Upgrader( new Automatic_Upgrader_Skin() );
+		$result   = $upgrader->install(
+			$tmp_file,
+			array(
+				'overwrite'         => false,
+				'overwrite_package' => false,
+			)
+		);
+
+		wp_delete_file( $tmp_file );
+
+		if ( true !== $result ) {
+			$detail = ( $result instanceof WP_Error ) ? $result->get_error_message() : '';
+
+			/* translators: %s: upgrader error message. */
+			return new WP_Error( 'robotstxt_manager_install', '' !== $detail ? sprintf( __( 'Installation failed: %s', 'robotstxt-manager' ), $detail ) : __( 'Installation failed.', 'robotstxt-manager' ) );
+		}
+
+		$file = $this->find_plugin_file( $slug );
+
+		if ( '' === $file ) {
+			/* translators: %s: plugin slug. */
+			return new WP_Error( 'robotstxt_manager_wporg', sprintf( __( 'The downloaded plugin for %s does not have the expected folder structure.', 'robotstxt-manager' ), $slug ) );
+		}
+
+		$data     = get_plugins();
+		$raw_name = isset( $data[ $file ]['Name'] ) && is_string( $data[ $file ]['Name'] ) ? $data[ $file ]['Name'] : '';
+
+		return '' !== $raw_name ? $raw_name : $slug;
 	}
 
 	/**
diff --git a/admin/views/page-catalog.php b/admin/views/page-catalog.php
index d419227..7a79180 100644
--- a/admin/views/page-catalog.php
+++ b/admin/views/page-catalog.php
@@ -135,6 +135,18 @@ $compat_warnings   = 0;
 					$website_url = '' !== $page_url ? $page_url : $homepage;
 					$has_detail  = ( '' !== $website_url || '' !== $desc );
 
+					$raw_reqs  = $entry['requires_plugins'] ?? '';
+					$req_slugs = array();
+					if ( is_string( $raw_reqs ) && '' !== trim( $raw_reqs ) ) {
+						foreach ( explode( ',', $raw_reqs ) as $part ) {
+							$dep = sanitize_key( trim( $part ) );
+							if ( '' !== $dep ) {
+								$req_slugs[] = $dep;
+							}
+						}
+					}
+					$has_detail = $has_detail || array() !== $req_slugs;
+
 					// Compatibility checks.
 					$wp_ok  = '' === $req_wp || version_compare( $local_wp_version, $req_wp, '>=' );
 					$php_ok = '' === $req_php || version_compare( $local_php_version, $req_php, '>=' );
@@ -251,6 +263,19 @@ $compat_warnings   = 0;
 							<?php if ( '' !== $desc ) : ?>
 								<span class="robotstxt-manager-detail-description"><?php echo esc_html( $desc ); ?></span>
 							<?php endif; ?>
+							<?php if ( array() !== $req_slugs ) : ?>
+								<span class="robotstxt-manager-detail-requires">
+									<?php
+									echo esc_html(
+										sprintf(
+											/* translators: %s: list of plugin slugs. */
+											__( 'Requires: %s', 'robotstxt-manager' ),
+											implode( ', ', $req_slugs )
+										)
+									);
+									?>
+								</span>
+							<?php endif; ?>
 						</td>
 					</tr>
 					<?php endif; ?>
diff --git a/changelog.txt b/changelog.txt
index 56d6dfd..58d7465 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,5 +1,22 @@
 == Changelog ==
 
+= 1.1.0 =
+
+_Release date: 2026-08-15_
+
+**Added**
+
+* Cascade dependency install: when installing a plugin whose catalog entry declares `requires_plugins` (Core 1.7.0+), Manager first installs every missing dependency — ecosystem plugins through the store flow, WordPress.org plugins (e.g. Action Scheduler) via `plugins_api` and their repository ZIPs — dependencies of dependencies first, cycle-safe. The success notice lists what was installed; failures name the dependency and abort before the main install. Catalog rows show a "Requires: …" hint in the detail line.
+
+**Changed**
+
+* Plugin version 1.0.0 → 1.1.0. No database schema changes (no custom tables).
+
+**Compatibility**
+
+* WordPress: 4.4 - 7.1 (scan-verified: wp-compat clean from 4.4)
+* PHP: 8.0 - 8.5 (scan-verified: PHPCompatibility + manual feature audit)
+
 = 1.0.0 =
 
 _Release date: 2026-08-15_
diff --git a/languages/robotstxt-manager-ca.mo b/languages/robotstxt-manager-ca.mo
index 20a059d..dfd0845 100644
Binary files a/languages/robotstxt-manager-ca.mo and b/languages/robotstxt-manager-ca.mo differ
diff --git a/languages/robotstxt-manager-ca.po b/languages/robotstxt-manager-ca.po
index cd3e9bf..da6c088 100644
--- a/languages/robotstxt-manager-ca.po
+++ b/languages/robotstxt-manager-ca.po
@@ -249,3 +249,21 @@ msgstr "Pagaments, i com funciona"
 
 msgid "Free plugins install instantly at no cost. Premium plugins are annual subscriptions: you pay once on our website and the subscription renews automatically every year until you cancel. You can cancel at any time from your ROBOTSTXT account page — access keeps working until the end of the paid period. All payments are processed securely by Mollie; we never see or store your card details."
 msgstr "Els plugins gratuïts s'instal·len a l'instant i sense cost. Els plugins premium són subscripcions anuals: pagues una vegada al nostre lloc web i la subscripció es renova automàticament cada any fins que la cancellis. Pots cancel·lar-la en qualsevol moment des de la teva pàgina de compte de ROBOTSTXT; l'accés segueix funcionant fins al final del període pagat. Tots els pagaments els processa de manera segura Mollie; nosaltres mai no veiem ni desem les dades de la teva targeta."
+
+msgid "Installed required plugins: %s."
+msgstr "Plugins requerits instal·lats: %s."
+
+msgid "Could not install the required plugin %s."
+msgstr "No s'ha pogut instal·lar el plugin requerit %s."
+
+msgid "WordPress.org lookup failed: %s"
+msgstr "La cerca a WordPress.org ha fallat: %s"
+
+msgid "No download found on WordPress.org for %s."
+msgstr "No s'ha trobat cap baixada a WordPress.org per a %s."
+
+msgid "The downloaded plugin for %s does not have the expected folder structure."
+msgstr "El plugin baixat per a %s no té lestructura de carpetes esperada."
+
+msgid "Requires: %s"
+msgstr "Requereix: %s"
diff --git a/languages/robotstxt-manager-es_ES.mo b/languages/robotstxt-manager-es_ES.mo
index 9b6d0bd..763f8f0 100644
Binary files a/languages/robotstxt-manager-es_ES.mo and b/languages/robotstxt-manager-es_ES.mo differ
diff --git a/languages/robotstxt-manager-es_ES.po b/languages/robotstxt-manager-es_ES.po
index 3059230..35554f4 100644
--- a/languages/robotstxt-manager-es_ES.po
+++ b/languages/robotstxt-manager-es_ES.po
@@ -249,3 +249,21 @@ msgstr "Pagos, y cómo funciona"
 
 msgid "Free plugins install instantly at no cost. Premium plugins are annual subscriptions: you pay once on our website and the subscription renews automatically every year until you cancel. You can cancel at any time from your ROBOTSTXT account page — access keeps working until the end of the paid period. All payments are processed securely by Mollie; we never see or store your card details."
 msgstr "Los plugins gratis se instalan al instante y sin coste. Los plugins premium son suscripciones anuales: pagas una vez en nuestro sitio web y la suscripción se renueva automáticamente cada año hasta que la canceles. Puedes cancelarla en cualquier momento desde tu página de cuenta de ROBOTSTXT; el acceso sigue funcionando hasta el final del periodo pagado. Todos los pagos los procesa de forma segura Mollie; nosotros nunca vemos ni guardamos los datos de tu tarjeta."
+
+msgid "Installed required plugins: %s."
+msgstr "Plugins requeridos instalados: %s."
+
+msgid "Could not install the required plugin %s."
+msgstr "No se pudo instalar el plugin requerido %s."
+
+msgid "WordPress.org lookup failed: %s"
+msgstr "La búsqueda en WordPress.org falló: %s"
+
+msgid "No download found on WordPress.org for %s."
+msgstr "No se encontró ninguna descarga en WordPress.org para %s."
+
+msgid "The downloaded plugin for %s does not have the expected folder structure."
+msgstr "El plugin descargado para %s no tiene la estructura de carpetas esperada."
+
+msgid "Requires: %s"
+msgstr "Requiere: %s"
diff --git a/languages/robotstxt-manager.pot b/languages/robotstxt-manager.pot
index 2118156..dffb2a3 100644
--- a/languages/robotstxt-manager.pot
+++ b/languages/robotstxt-manager.pot
@@ -248,3 +248,21 @@ msgstr ""
 
 msgid "Free plugins install instantly at no cost. Premium plugins are annual subscriptions: you pay once on our website and the subscription renews automatically every year until you cancel. You can cancel at any time from your ROBOTSTXT account page — access keeps working until the end of the paid period. All payments are processed securely by Mollie; we never see or store your card details."
 msgstr ""
+
+msgid "Installed required plugins: %s."
+msgstr ""
+
+msgid "Could not install the required plugin %s."
+msgstr ""
+
+msgid "WordPress.org lookup failed: %s"
+msgstr ""
+
+msgid "No download found on WordPress.org for %s."
+msgstr ""
+
+msgid "The downloaded plugin for %s does not have the expected folder structure."
+msgstr ""
+
+msgid "Requires: %s"
+msgstr ""
diff --git a/readme.txt b/readme.txt
index 67dc346..7b135d2 100644
--- a/readme.txt
+++ b/readme.txt
@@ -3,9 +3,9 @@ Contributors: javiercasares, robotstxt
 Tags: dashboard, catalog, updates, subscriptions, management
 Requires at least: 4.4
 Tested up to: 7.1
-Stable tag: 1.0.0
+Stable tag: 1.1.0
 Requires PHP: 8.0
-Version: 1.0.0
+Version: 1.1.0
 License: GPL-3.0-or-later
 License URI: https://www.gnu.org/licenses/gpl-3.0.txt
 
@@ -92,6 +92,12 @@ Encrypted at rest using AES-256-CBC with a key derived from your site's WordPres
 
 == Changelog ==
 
+= 1.1.0 =
+
+_Release date: 2026-08-15_
+
+* Cascade dependency install: required plugins (ecosystem or WordPress.org, e.g. Action Scheduler) are installed automatically before the plugin; "Requires:" hints in the catalog.
+
 = 1.0.0 =
 
 _Release date: 2026-08-15_
diff --git a/robotstxt-manager.php b/robotstxt-manager.php
index f814d46..dbac845 100644
--- a/robotstxt-manager.php
+++ b/robotstxt-manager.php
@@ -3,7 +3,7 @@
  * Plugin Name:       Manager (by ROBOTSTXT)
  * Plugin URI:        https://git.robotstxt.es/ROBOTSTXT/robotstxt-manager
  * Description:       Client-side dashboard for the ROBOTSTXT plugin ecosystem. Lists the catalog from a remote Plugins Core install, resolves local install/update state, and installs, activates, and updates plugins directly from the store.
- * Version:           1.0.0
+ * Version:           1.1.0
  * Requires at least: 4.4
  * Requires PHP:      8.0
  * Author:            ROBOTSTXT
@@ -21,7 +21,7 @@ if ( ! defined( 'ABSPATH' ) ) {
 }
 
 /** Plugin version. */
-define( 'ROBOTSTXT_MANAGER_VERSION', '1.0.0' );
+define( 'ROBOTSTXT_MANAGER_VERSION', '1.1.0' );
 
 /** Absolute path to the plugin directory, with trailing slash. */
 define( 'ROBOTSTXT_MANAGER_DIR', plugin_dir_path( __FILE__ ) );