diff --git a/config/scalar.php b/config/scalar.php
index ff5c8d4..e750dee 100644
--- a/config/scalar.php
+++ b/config/scalar.php
@@ -112,6 +112,11 @@ return [
          */
         'hideTestRequestButton' => true,
 
+        /**
+         * Whether to show the API client button in the sidebar and modal.
+         */
+        'hideClientButton' => true,
+
         /**
          * MCP will be introduced as a first-party KanbanGit feature later.
          */
diff --git a/tests/Feature/Api/PublicApiDocumentationTest.php b/tests/Feature/Api/PublicApiDocumentationTest.php
index 2c50d43..d06a961 100644
--- a/tests/Feature/Api/PublicApiDocumentationTest.php
+++ b/tests/Feature/Api/PublicApiDocumentationTest.php
@@ -10,6 +10,7 @@ class PublicApiDocumentationTest extends TestCase
     {
         $this->get('/api/docs')
             ->assertOk()
+            ->assertSee('"hideClientButton":true', false)
             ->assertSee('"mcp":{"disabled":true}', false);
     }