diff --git a/config/upstreams.php b/config/upstreams.php
index 58499932..25aad75c 100644
--- a/config/upstreams.php
+++ b/config/upstreams.php
@@ -48,6 +48,10 @@ return [
             'host' => env('UPSTREAM_TUNNEL_OPERATIONS_REPLICA_HOST'),
             'port' => env('UPSTREAM_TUNNEL_OPERATIONS_REPLICA_PORT'),
         ],
+        'js_data_middle_platform' => [
+            'host' => env('UPSTREAM_TUNNEL_JS_DATA_MIDDLE_PLATFORM_HOST'),
+            'port' => env('UPSTREAM_TUNNEL_JS_DATA_MIDDLE_PLATFORM_PORT'),
+        ],
     ],
 
     'local_configuration' => [
diff --git a/tests/Feature/SystemSettings/UpstreamDatabasesTest.php b/tests/Feature/SystemSettings/UpstreamDatabasesTest.php
index 254257fc..ea350757 100644
--- a/tests/Feature/SystemSettings/UpstreamDatabasesTest.php
+++ b/tests/Feature/SystemSettings/UpstreamDatabasesTest.php
@@ -262,6 +262,16 @@ class UpstreamDatabasesTest extends FeatureTestCase
         }
     }
 
+    public function test_js_data_middle_platform_declares_a_private_production_tunnel_endpoint(): void
+    {
+        $contents = file_get_contents(config_path('upstreams.php'));
+
+        $this->assertIsString($contents);
+        $this->assertStringContainsString("'js_data_middle_platform' => [", $contents);
+        $this->assertStringContainsString("env('UPSTREAM_TUNNEL_JS_DATA_MIDDLE_PLATFORM_HOST')", $contents);
+        $this->assertStringContainsString("env('UPSTREAM_TUNNEL_JS_DATA_MIDDLE_PLATFORM_PORT')", $contents);
+    }
+
     public function test_global_wildcard_scope_is_rejected(): void
     {
         $this->withExceptionHandling();