diff --git a/class.jetpack-autoupdate.php b/class.jetpack-autoupdate.php
index c118dd5b94d2c..5b540d09cd23e 100644
--- a/class.jetpack-autoupdate.php
+++ b/class.jetpack-autoupdate.php
@@ -52,6 +52,11 @@ public function autoupdate_plugin( $update, $item ) {
 	}
 
 	public function autoupdate_translation( $update, $item ) {
+		// Autoupdate all translations
+		if ( Jetpack_Options::get_option( 'autoupdate_translations', false ) ) {
+			return true;
+		}
+		
 		// Themes
 		$autoupdate_themes_translations = Jetpack_Options::get_option( 'autoupdate_themes_translations', array() );
 		$autoupdate_theme_list          = Jetpack_Options::get_option( 'autoupdate_themes', array() );
diff --git a/class.jetpack-options.php b/class.jetpack-options.php
index 8486b197a8722..7482dbaf3dc02 100644
--- a/class.jetpack-options.php
+++ b/class.jetpack-options.php
@@ -39,6 +39,7 @@ public static function get_option_names( $type = 'compact' ) {
 				'autoupdate_themes',           // (array)  An array of theme ids ( eg. twentyfourteen ) that should be autoupdated
 				'autoupdate_themes_translations', // (array)  An array of theme ids ( eg. twentyfourteen ) that should autoupdated translation files.
 				'autoupdate_core',             // (bool)   Whether or not to autoupdate core
+				'autoupdate_translations',     // (bool)   Whether or not to autoupdate all translations
 				'json_api_full_management',    // (bool)   Allow full management (eg. Activate, Upgrade plugins) of the site via the JSON API.
 				'sync_non_public_post_stati',  // (bool)   Allow synchronisation of posts and pages with non-public status.
 				'site_icon_url',               // (string) url to the full site icon
diff --git a/json-endpoints/jetpack/class.jetpack-json-api-plugins-endpoint.php b/json-endpoints/jetpack/class.jetpack-json-api-plugins-endpoint.php
index c440a3fa853d2..30c083b4560cd 100644
--- a/json-endpoints/jetpack/class.jetpack-json-api-plugins-endpoint.php
+++ b/json-endpoints/jetpack/class.jetpack-json-api-plugins-endpoint.php
@@ -118,7 +118,7 @@ protected function format_plugin( $plugin_file, $plugin_data ) {
 		$plugin['autoupdate']      = $autoupdate;
 		
 		$autoupdate_translation = in_array( $plugin_file, Jetpack_Options::get_option( 'autoupdate_plugins_translations', array() ) );
-		$plugin['autoupdate_translation'] = $autoupdate || $autoupdate_translation;
+		$plugin['autoupdate_translation'] = $autoupdate || $autoupdate_translation || Jetpack_Options::get_option( 'autoupdate_translations', false );
 
 		$plugin['uninstallable']   = is_uninstallable_plugin( $plugin_file );
 
diff --git a/json-endpoints/jetpack/class.jetpack-json-api-themes-endpoint.php b/json-endpoints/jetpack/class.jetpack-json-api-themes-endpoint.php
index d77d3ca438d23..40edabdd60450 100644
--- a/json-endpoints/jetpack/class.jetpack-json-api-themes-endpoint.php
+++ b/json-endpoints/jetpack/class.jetpack-json-api-themes-endpoint.php
@@ -123,7 +123,7 @@ protected function format_theme( $theme ) {
 		$formatted_theme['autoupdate'] =  $autoupdate;
 
 		$autoupdate_translation = in_array( $id, Jetpack_Options::get_option( 'autoupdate_themes_translations', array() ) );
-		$formatted_theme['autoupdate_translation'] = $autoupdate || $autoupdate_translation;
+		$formatted_theme['autoupdate_translation'] = $autoupdate || $autoupdate_translation || Jetpack_Options::get_option( 'autoupdate_translations', false );
 
 		if ( isset( $this->log[ $id ] ) ) {
 			$formatted_theme['log'] = $this->log[ $id ];
diff --git a/json-endpoints/jetpack/class.jetpack-json-api-translations-endpoint.php b/json-endpoints/jetpack/class.jetpack-json-api-translations-endpoint.php
new file mode 100644
index 0000000000000..65b6e725e2120
--- /dev/null
+++ b/json-endpoints/jetpack/class.jetpack-json-api-translations-endpoint.php
@@ -0,0 +1,20 @@
+<?php
+
+// Translations
+class Jetpack_JSON_API_Translations_Endpoint extends Jetpack_JSON_API_Endpoint {
+	// GET /sites/%s/translations
+	// POST /sites/%s/translations
+	// POST /sites/%s/translations/update
+	protected $needed_capabilities = array( 'update_core', 'update_plugins', 'update_themes' );
+	protected $log;
+	protected $success;
+
+	public function result() {
+		return array(
+			'translations'  => wp_get_translation_updates(),
+			'autoupdate'    => Jetpack_Options::get_option( 'autoupdate_translations', false ),
+			'log'           => $this->log,
+			'success'       => $this->success,
+		);
+	}
+}
diff --git a/json-endpoints/jetpack/class.jetpack-json-api-translations-modify-endpoint.php b/json-endpoints/jetpack/class.jetpack-json-api-translations-modify-endpoint.php
new file mode 100644
index 0000000000000..fd5f6a565e34b
--- /dev/null
+++ b/json-endpoints/jetpack/class.jetpack-json-api-translations-modify-endpoint.php
@@ -0,0 +1,29 @@
+<?php
+
+class Jetpack_JSON_API_Translations_Modify_Endpoint extends Jetpack_JSON_API_Translations_Endpoint {
+	// POST /sites/%s/translations
+	// POST /sites/%s/translations/update
+	protected $action              = 'default_action';
+	protected $new_version;
+	protected $log;
+
+	public function default_action() {
+		$args = $this->input();
+
+		if ( isset( $args['autoupdate'] ) && is_bool( $args['autoupdate'] ) ) {
+			Jetpack_Options::update_option( 'autoupdate_translations', $args['autoupdate'] );
+		}
+
+		return true;
+	}
+
+	protected function update() {
+		include_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
+
+		$upgrader = new Language_Pack_Upgrader( new Automatic_Upgrader_Skin() );
+		$result = $upgrader->bulk_upgrade();
+
+		$this->log = $upgrader->skin->get_upgrade_messages();
+		$this->success = ( ! is_wp_error( $result ) ) ? (bool) $result : false;
+	}
+}
diff --git a/json-endpoints/jetpack/json-api-jetpack-endpoints.php b/json-endpoints/jetpack/json-api-jetpack-endpoints.php
index b560874763e1e..7333e4c9402c3 100644
--- a/json-endpoints/jetpack/json-api-jetpack-endpoints.php
+++ b/json-endpoints/jetpack/json-api-jetpack-endpoints.php
@@ -896,6 +896,76 @@
 
 ) );
 
+require_once( $json_jetpack_endpoints_dir . 'class.jetpack-json-api-translations-endpoint.php' );
+require_once( $json_jetpack_endpoints_dir . 'class.jetpack-json-api-translations-modify-endpoint.php' );
+
+new Jetpack_JSON_API_Translations_Endpoint( array(
+	'description'     => 'Gets info about a Jetpack blog\'s core installation',
+	'method'          => 'GET',
+	'path'            => '/sites/%s/translations',
+	'stat'            => 'translations',
+	'path_labels' => array(
+		'$site' => '(int|string) The site ID, The site domain'
+	),
+	'response_format' => array(
+		'translations' => '(array) A list of translations that are available',
+		'autoupdate' => '(bool) Whether or not we automatically update translations',
+		'log'     => '(array:safehtml) An array of log strings.',
+	),
+	'example_request_data' => array(
+		'headers' => array(
+			'authorization' => 'Bearer YOUR_API_TOKEN'
+		),
+	),
+	'example_request' => 'https://public-api.wordpress.com/rest/v1/sites/example.wordpress.org/translations'
+) );
+
+new Jetpack_JSON_API_Translations_Modify_Endpoint( array(
+	'description'     => 'Toggle automatic core updates for a Jetpack blog',
+	'method'          => 'POST',
+	'path'            => '/sites/%s/translations',
+	'stat'            => 'translations',
+	'path_labels' => array(
+		'$site' => '(int|string) The site ID, The site domain'
+	),
+	'request_format' => array(
+		'autoupdate'   => '(bool) Whether or not we automatically update translations',
+	),
+	'response_format' => array(
+		'translations' => '(array) A list of translations that are available',
+		'autoupdate' => '(bool) Whether or not we automatically update translations',
+	),
+	'example_request_data' => array(
+		'headers' => array(
+			'authorization' => 'Bearer YOUR_API_TOKEN'
+		),
+		'body' => array(
+			'autoupdate' => true,
+		),
+	),
+	'example_request' => 'https://public-api.wordpress.com/rest/v1/sites/example.wordpress.org/translations'
+) );
+
+new Jetpack_JSON_API_Translations_Modify_Endpoint( array(
+	'description'     => 'Update All Translations installation on a Jetpack blog',
+	'method'          => 'POST',
+	'path'            => '/sites/%s/translations/update',
+	'stat'            => 'translations:update',
+	'path_labels' => array(
+		'$site' => '(int|string) The site ID, The site domain'
+	),
+	'response_format' => array(
+		'log'     => '(array:safehtml) An array of log strings.',
+		'success' => '(bool) Was the operation successful'
+	),
+	'example_request_data' => array(
+		'headers' => array(
+			'authorization' => 'Bearer YOUR_API_TOKEN'
+		),
+	),
+	'example_request' => 'https://public-api.wordpress.com/rest/v1/sites/example.wordpress.org/translations/update'
+) );
+
 // Options
 require_once( $json_jetpack_endpoints_dir . 'class.wpcom-json-api-get-option-endpoint.php' );
 
diff --git a/sync/class.jetpack-sync-defaults.php b/sync/class.jetpack-sync-defaults.php
index 5dd5896ad230a..13a691f3f27b1 100644
--- a/sync/class.jetpack-sync-defaults.php
+++ b/sync/class.jetpack-sync-defaults.php
@@ -82,6 +82,7 @@ class Jetpack_Sync_Defaults {
 		'jetpack_autoupdate_themes',
 		'jetpack_autoupdate_themes_translations',
 		'jetpack_autoupdate_core',
+		'jetpack_autoupdate_translations',
 		'carousel_background_color',
 		'carousel_display_exif',
 		'jetpack_portfolio',
diff --git a/tests/php/sync/test_class.jetpack-sync-options.php b/tests/php/sync/test_class.jetpack-sync-options.php
index e3a5a71db492d..f3165fcc83b05 100644
--- a/tests/php/sync/test_class.jetpack-sync-options.php
+++ b/tests/php/sync/test_class.jetpack-sync-options.php
@@ -142,6 +142,7 @@ public function test_sync_default_options() {
 			'jetpack_autoupdate_themes'            => 'pineapple',
 			'jetpack_autoupdate_themes_translations' => 'pineapple',
 			'jetpack_autoupdate_core'              => 'pineapple',
+			'jetpack_autoupdate_translations'      => 'pineapple',
 			'carousel_background_color'            => 'pineapple',
 			'carousel_display_exif'                => 'pineapple',
 			'jetpack_portfolio'                    => 'pineapple',