diff --git a/app/models/api_key_scope.rb b/app/models/api_key_scope.rb
index ff4f455ac1e..857b250bfd7 100644
--- a/app/models/api_key_scope.rb
+++ b/app/models/api_key_scope.rb
@@ -70,6 +70,22 @@ class ApiKeyScope < ActiveRecord::Base
             actions: %w[tags#index],
           },
         },
+        tag_groups: {
+          list: {
+            actions: %w[tag_groups#index],
+          },
+          show: {
+            actions: %w[tag_groups#show],
+            params: %i[id],
+          },
+          create: {
+            actions: %w[tag_groups#create],
+          },
+          update: {
+            actions: %w[tag_groups#update],
+            params: %i[id],
+          },
+        },
         categories: {
           list: {
             actions: %w[categories#index],
diff --git a/config/locales/client.en.yml b/config/locales/client.en.yml
index 9f211db2de4..a65b5da7f9c 100644
--- a/config/locales/client.en.yml
+++ b/config/locales/client.en.yml
@@ -4856,6 +4856,11 @@ en:
               list: List latest posts and private posts. RSS is also supported.
             tags:
               list: List tags.
+            tag_groups:
+              list: Get a list of tag groups.
+              show: Get a single tag group by id.
+              create: Creates a tag group.
+              update: Updates a tag group specified by id.
             categories:
               list: Get a list of categories.
               show: Get a single category by id.
diff --git a/spec/requests/admin/api_controller_spec.rb b/spec/requests/admin/api_controller_spec.rb
index b582558fce9..4c0f75d81c1 100644
--- a/spec/requests/admin/api_controller_spec.rb
+++ b/spec/requests/admin/api_controller_spec.rb
@@ -430,6 +430,7 @@ RSpec.describe Admin::ApiController do
           "email",
           "posts",
           "tags",
+          "tag_groups",
           "uploads",
           "user_status",
           "global",