diff --git a/app/Http/Controllers/FrontPageController.php b/app/Http/Controllers/FrontPageController.php
index 52ff2adf..710e2da6 100644
--- a/app/Http/Controllers/FrontPageController.php
+++ b/app/Http/Controllers/FrontPageController.php
@@ -19,10 +19,6 @@ class FrontPageController extends Controller
      */
     public function index(Request $request): Response|View
     {
-        if ($request->wantsActivityStream()) {
-            return (new ActivityStreamsService())->siteOwnerResponse();
-        }
-
         $notes = Note::latest()->with(['media', 'client', 'place'])->get();
         $articles = Article::latest()->get();
         $bookmarks = Bookmark::latest()->get();
diff --git a/app/Http/Controllers/NotesController.php b/app/Http/Controllers/NotesController.php
index aea2bd76..c73c5f48 100644
--- a/app/Http/Controllers/NotesController.php
+++ b/app/Http/Controllers/NotesController.php
@@ -23,10 +23,6 @@ class NotesController extends Controller
      */
     public function index(Request $request): View|Response
     {
-        if ($request->wantsActivityStream()) {
-            return (new ActivityStreamsService())->siteOwnerResponse();
-        }
-
         $notes = Note::latest()
             ->with('place', 'media', 'client')
             ->withCount(['webmentions As replies' => function ($query) {
@@ -47,10 +43,6 @@ class NotesController extends Controller
             abort(404);
         }
 
-        if (request()->wantsActivityStream()) {
-            return (new ActivityStreamsService())->singleNoteResponse($note);
-        }
-
         return view('notes.show', compact('note'));
     }
 
diff --git a/app/Providers/AppServiceProvider.php b/app/Providers/AppServiceProvider.php
index 67d7a2f4..c283cf9e 100644
--- a/app/Providers/AppServiceProvider.php
+++ b/app/Providers/AppServiceProvider.php
@@ -30,11 +30,6 @@ class AppServiceProvider extends ServiceProvider
     {
         Note::observe(NoteObserver::class);
 
-        // Request AS macro
-        Request::macro('wantsActivityStream', function () {
-            return Str::contains(mb_strtolower($this->header('Accept')), 'application/activity+json');
-        });
-
         // configure Intervention/Image
         $this->app->bind('Intervention\Image\ImageManager', function () {
             return new \Intervention\Image\ImageManager(['driver' => config('image.driver')]);
diff --git a/app/Services/ActivityStreamsService.php b/app/Services/ActivityStreamsService.php
deleted file mode 100644
index e439e539..00000000
--- a/app/Services/ActivityStreamsService.php
+++ /dev/null
@@ -1,59 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace App\Services;
-
-use App\Models\Note;
-use Illuminate\Http\Response;
-
-class ActivityStreamsService
-{
-    /**
-     * Return the relevant data to an AS2.0 request to the root path.
-     */
-    public function siteOwnerResponse(): Response
-    {
-        $data = json_encode([
-            '@context' => 'https://www.w3.org/ns/activitystreams',
-            'id' => config('app.url'),
-            'type' => 'Person',
-            'name' => config('user.displayname'),
-            'preferredUsername' => config('user.username'),
-        ]);
-
-        return response($data)->header('Content-Type', 'application/activity+json');
-    }
-
-    /**
-     * Return the relevant data to an AS2.0 request for a particular note.
-     */
-    public function singleNoteResponse(Note $note): Response
-    {
-        $data = json_encode([
-            '@context' => 'https://www.w3.org/ns/activitystreams',
-            'summary' => strtok(config('user.displayname'), ' ') . ' added a note to their microblog',
-            'type' => 'Add',
-            'published' => $note->updated_at->toW3cString(),
-            'actor' => [
-                'type' => 'Person',
-                'id' => config('app.url'),
-                'name' => config('app.display_name'),
-                'url' => config('app.url'),
-                'image' => [
-                    'type' => 'Link',
-                    'href' => config('app.url') . '/assets/img/profile.jpg',
-                    'mediaType' => '/image/jpeg',
-                ],
-            ],
-            'object' => [
-                'id' => $note->longurl,
-                'type' => 'Note',
-                'url' => $note->longurl,
-                'name' => strip_tags($note->note),
-            ],
-        ]);
-
-        return response($data)->header('Content-Type', 'application/activity+json');
-    }
-}
diff --git a/tests/Feature/ActivityStreamTest.php b/tests/Feature/ActivityStreamTest.php
deleted file mode 100644
index ae6bb8ee..00000000
--- a/tests/Feature/ActivityStreamTest.php
+++ /dev/null
@@ -1,60 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Tests\Feature;
-
-use App\Models\Note;
-use Illuminate\Foundation\Testing\RefreshDatabase;
-use Tests\TestCase;
-
-class ActivityStreamTest extends TestCase
-{
-    use RefreshDatabase;
-
-    /** @test */
-    public function homepageRequestReturnsDataForSiteOwner(): void
-    {
-        $response = $this->get('/', ['Accept' => 'application/activity+json']);
-        $response->assertHeader('Content-Type', 'application/activity+json');
-        $response->assertJson([
-            '@context' => 'https://www.w3.org/ns/activitystreams',
-            'id' => config('app.url'),
-            'type' => 'Person',
-            'name' => config('user.displayname'),
-        ]);
-    }
-
-    /** @test */
-    public function notesPageContainsAuthorActivityStreamData(): void
-    {
-        $response = $this->get('/notes', ['Accept' => 'application/activity+json']);
-        $response->assertHeader('Content-Type', 'application/activity+json');
-        $response->assertJson([
-            '@context' => 'https://www.w3.org/ns/activitystreams',
-            'id' => config('app.url'),
-            'type' => 'Person',
-            'name' => config('user.displayname'),
-        ]);
-    }
-
-    /** @test */
-    public function requestForNoteIncludesActivityStreamData(): void
-    {
-        $note = Note::factory()->create();
-        $response = $this->get($note->longurl, ['Accept' => 'application/activity+json']);
-        $response->assertHeader('Content-Type', 'application/activity+json');
-        $response->assertJson([
-            '@context' => 'https://www.w3.org/ns/activitystreams',
-            'type' => 'Add',
-            'actor' => [
-                'type' => 'Person',
-                'id' => config('app.url'),
-            ],
-            'object' => [
-                'type' => 'Note',
-                'name' => strip_tags($note->note),
-            ],
-        ]);
-    }
-}