diff --git a/activitypub.php b/activitypub.php
index 045ee39..a989088 100644
--- a/activitypub.php
+++ b/activitypub.php
@@ -19,9 +19,13 @@ function activitypub_init() {
 	require_once dirname( __FILE__ ) . '/includes/functions.php';
 
 	require_once dirname( __FILE__ ) . '/includes/class-activitypub.php';
-	add_filter( 'template_include', array( 'Activity_Pub', 'render_profile' ), 99 );
-	add_action( 'webfinger_user_data', array( 'Activity_Pub', 'add_webfinger_discovery' ), 10, 3 );
-	add_filter( 'query_vars', array( 'Activity_Pub', 'add_query_vars' ) );
-	add_action( 'init', array( 'Activity_Pub', 'add_rewrite_endpoint' ) );
+	add_filter( 'template_include', array( 'Activitypub', 'render_profile' ), 99 );
+	add_action( 'webfinger_user_data', array( 'Activitypub', 'add_webfinger_discovery' ), 10, 3 );
+	add_filter( 'query_vars', array( 'Activitypub', 'add_query_vars' ) );
+	add_action( 'init', array( 'Activitypub', 'add_rewrite_endpoint' ) );
+
+	require_once dirname( __FILE__ ) . '/includes/class-activitypub-outbox.php';
+	// Configure the REST API route
+	add_action( 'rest_api_init', array( 'Activitypub_Outbox', 'register_routes' ) );
 }
 add_action( 'plugins_loaded', 'activitypub_init' );
diff --git a/includes/class-activitypub-outbox.php b/includes/class-activitypub-outbox.php
new file mode 100644
index 0000000..5dd7ea2
--- /dev/null
+++ b/includes/class-activitypub-outbox.php
@@ -0,0 +1,34 @@
+<?php
+/**
+ * ActivityPub Outbox Class
+ *
+ * @author Matthias Pfefferle
+ */
+class Activitypub_Outbox {
+	/**
+	 * Register the Route.
+	 */
+	public static function register_routes() {
+		register_rest_route(
+			'activitypub/1.0', '/outbox', array(
+				array(
+					'methods'  => WP_REST_Server::READABLE,
+					'callback' => array( 'Activitypub_Outbox', 'get' ),
+				),
+			)
+		);
+	}
+
+	public static function get( $request ) {
+		$outbox = new stdClass();
+
+		$outbox->{'@context'} = array(
+			'https://www.w3.org/ns/activitystreams',
+			'https://w3id.org/security/v1',
+		);
+
+		//var_dump($request->get_param('page'));
+
+		return new WP_REST_Response( $outbox, 200 );
+	}
+}
diff --git a/includes/class-activitypub.php b/includes/class-activitypub.php
index 421bb7d..48beae9 100644
--- a/includes/class-activitypub.php
+++ b/includes/class-activitypub.php
@@ -1,6 +1,6 @@
 <?php
 
-class Activity_Pub {
+class Activitypub {
 	public static function render_profile( $template ) {
 		if ( ! is_author() ) {
 			return $template;
diff --git a/templates/author-profile.php b/templates/author-profile.php
index c100aa0..d38157c 100644
--- a/templates/author-profile.php
+++ b/templates/author-profile.php
@@ -18,7 +18,7 @@ $json->id                = get_author_posts_url( $author_id );
 $json->type              = 'Person';
 $json->name              = get_the_author_meta( 'display_name', $author_id );
 $json->summary           = get_the_author_meta( 'description', $author_id );
-$json->preferredUsername = get_the_author();
+$json->preferredUsername = get_the_author(); // phpcs:ignore
 $json->url               = get_author_posts_url( $author_id );
 $json->icon              = array(
 	'type' => 'Image',
@@ -32,7 +32,10 @@ if ( has_header_image() ) {
 	);
 }
 
+$json->outbox = get_rest_url( null, '/activitypub/1.0/outbox' );
+
 if ( method_exists( 'Magic_Sig', 'get_public_key' ) ) {
+	// phpcs:ignore
 	$json->publicKey = array(
 		'id'           => get_author_posts_url( $author_id ) . '#key',
 		'owner'        => get_author_posts_url( $author_id ),
@@ -53,7 +56,7 @@ do_action( 'activitypub_profile_pre' );
 $options = 0;
 // JSON_PRETTY_PRINT added in PHP 5.4
 if ( get_query_var( 'pretty' ) ) {
-	$options |= JSON_PRETTY_PRINT;
+	$options |= JSON_PRETTY_PRINT; // phpcs:ignore
 }
 
 /*