diff --git a/app/views/cards/comments/_comment.json.jbuilder b/app/views/cards/comments/_comment.json.jbuilder
index 3eb9855ed5..eaf1805d6e 100644
--- a/app/views/cards/comments/_comment.json.jbuilder
+++ b/app/views/cards/comments/_comment.json.jbuilder
@@ -11,6 +11,11 @@ json.cache! comment do
 
   json.creator comment.creator, partial: "users/user", as: :user
 
+  json.card do
+    json.id comment.card_id
+    json.url card_url(comment.card_id)
+  end
+
   json.reactions_url card_comment_reactions_url(comment.card_id, comment.id)
   json.url card_comment_url(comment.card_id, comment.id)
 end
diff --git a/docs/API.md b/docs/API.md
index 3c1d91977b..ee1820f283 100644
--- a/docs/API.md
+++ b/docs/API.md
@@ -796,6 +796,10 @@ __Response:__
       "created_at": "2025-12-05T19:36:35.401Z",
       "url": "http://fizzy.localhost:3006/897362094/users/03f5v9zjw7pz8717a4no1h8a7"
     },
+    "card": {
+      "id": "03f5v9zo9qlcwwpyc0ascnikz",
+      "url": "http://fizzy.localhost:3006/897362094/cards/03f5v9zo9qlcwwpyc0ascnikz"
+    },
     "reactions_url": "http://fizzy.localhost:3006/897362094/cards/3/comments/03f5v9zo9qlcwwpyc0ascnikz/reactions",
     "url": "http://fizzy.localhost:3006/897362094/cards/3/comments/03f5v9zo9qlcwwpyc0ascnikz"
   }
@@ -826,6 +830,10 @@ __Response:__
     "created_at": "2025-12-05T19:36:35.401Z",
     "url": "http://fizzy.localhost:3006/897362094/users/03f5v9zjw7pz8717a4no1h8a7"
   },
+  "card": {
+    "id": "03f5v9zo9qlcwwpyc0ascnikz",
+    "url": "http://fizzy.localhost:3006/897362094/cards/03f5v9zo9qlcwwpyc0ascnikz"
+  },
   "reactions_url": "http://fizzy.localhost:3006/897362094/cards/3/comments/03f5v9zo9qlcwwpyc0ascnikz/reactions",
   "url": "http://fizzy.localhost:3006/897362094/cards/3/comments/03f5v9zo9qlcwwpyc0ascnikz"
 }
diff --git a/test/controllers/cards/comments_controller_test.rb b/test/controllers/cards/comments_controller_test.rb
index b34b641934..ef6dbf6e27 100644
--- a/test/controllers/cards/comments_controller_test.rb
+++ b/test/controllers/cards/comments_controller_test.rb
@@ -63,10 +63,12 @@ class Cards::CommentsControllerTest < ActionDispatch::IntegrationTest
   test "show as JSON" do
     comment = comments(:logo_agreement_kevin)
 
-    get card_comment_path(cards(:logo), comment), as: :json
+    get card_comment_path(comment.card, comment), as: :json
 
     assert_response :success
     assert_equal comment.id, @response.parsed_body["id"]
+    assert_equal comment.card.id, @response.parsed_body.dig("card", "id")
+    assert_equal card_url(comment.card.id), @response.parsed_body.dig("card", "url")
   end
 
   test "update as JSON" do