diff --git a/CHANGELOG-WIP.md b/CHANGELOG-WIP.md
index 20368cb7efb..8900ea4e27c 100644
--- a/CHANGELOG-WIP.md
+++ b/CHANGELOG-WIP.md
@@ -10,7 +10,9 @@
 - Added `craft\base\ApplicationTrait::getEnvId()`. ([#15313](https://github.com/craftcms/cms/issues/15313))
 - Added `craft\base\ElementInterface::getRootOwner()`. ([#15534](https://github.com/craftcms/cms/discussions/15534))
 - Added `craft\elements\conditions\SiteGroupConditionRule`.
+- Added `craft\helpers\Session::close()`.
 - Added `craft\services\Sites::getEditableSitesByGroupId()`.
+- `craft\helpers\Session` methods are now safe to call on console requests.
 - Deprecated `craft\helpers\ElementHelper::rootElement()`. `craft\base\ElementInterface::getRootOwner()` should be used instead.
 - Deprecated `craft\db\mysql\Schema::quoteDatabaseName()`.
 - Deprecated `craft\db\pgqsl\Schema::quoteDatabaseName()`.
@@ -19,4 +21,5 @@
 - MySQL mutex locks and PHP session names are now namespaced using the application ID combined with the environment name. ([#15313](https://github.com/craftcms/cms/issues/15313))
 - `x-craft-preview` and `x-craft-live-preview` params are now hashed, and `craft\web\Request::getIsPreview()` will only return `true` if the param validates. ([#15605](https://github.com/craftcms/cms/discussions/15605))
 - Generated URLs no longer include `x-craft-preview` or `x-craft-live-preview` query string params based on the requested URL, if either were set to an unverified string. ([#15605](https://github.com/craftcms/cms/discussions/15605))
+- The PHP session is now closed before making API requests. ([#15643](https://github.com/craftcms/cms/issues/15643))
 - Updated Twig to 3.12. ([#15568](https://github.com/craftcms/cms/discussions/15568))
diff --git a/src/controllers/AppController.php b/src/controllers/AppController.php
index d494487482e..81cb7103a16 100644
--- a/src/controllers/AppController.php
+++ b/src/controllers/AppController.php
@@ -21,6 +21,7 @@
 use craft\helpers\DateTimeHelper;
 use craft\helpers\Html;
 use craft\helpers\Json;
+use craft\helpers\Session;
 use craft\helpers\Update as UpdateHelper;
 use craft\helpers\UrlHelper;
 use craft\models\Update;
@@ -96,6 +97,9 @@ public function actionResourceJs(string $url): Response
             throw new BadRequestHttpException("$url does not appear to be a resource URL");
         }
 
+        // Close the PHP session in case this takes a while
+        Session::close();
+
         $response = Craft::createGuzzleClient()->get($url);
         $this->response->setCacheHeaders();
         $this->response->getHeaders()->set('content-type', 'application/javascript');
diff --git a/src/helpers/Session.php b/src/helpers/Session.php
index 6ecbb8713a9..f953a8766a6 100644
--- a/src/helpers/Session.php
+++ b/src/helpers/Session.php
@@ -8,6 +8,7 @@
 namespace craft\helpers;
 
 use Craft;
+use craft\errors\MissingComponentException;
 use yii\web\Session as YiiSession;
 
 /**
@@ -18,6 +19,16 @@
  */
 class Session
 {
+    /**
+     * @see session()
+     */
+    private static YiiSession|false|null $_session;
+
+    /**
+     * @see exists()
+     */
+    private static bool $_exists = false;
+
     /**
      * Returns the session variable value with the session variable name.
      *
@@ -42,7 +53,7 @@ public static function get(string $key): mixed
      */
     public static function set(string $key, mixed $value): void
     {
-        self::session()->set($key, $value);
+        self::session()?->set($key, $value);
     }
 
     /**
@@ -61,7 +72,6 @@ public static function remove(string $key): mixed
 
     /**
      * Removes all session variables.
-     *
      */
     public static function removeAll(): void
     {
@@ -85,13 +95,27 @@ public static function has(string $key): bool
         return self::session()->has($key);
     }
 
-
     /**
-     * @return YiiSession
+     * Closes the session, if open.
+     *
+     * @since 4.12.0
      */
-    private static function session(): YiiSession
+    public static function close(): void
+    {
+        self::session()?->close();
+    }
+
+    private static function session(): ?YiiSession
     {
-        return self::$_session ?? (self::$_session = Craft::$app->getSession());
+        if (!isset(self::$_session)) {
+            try {
+                self::$_session = Craft::$app->getSession();
+            } catch (MissingComponentException) {
+                self::$_session = false;
+            }
+        }
+
+        return self::$_session ?: null;
     }
 
     /**
@@ -106,19 +130,9 @@ public static function exists(): bool
         }
 
         // Keep re-checking until it does
-        return self::$_exists = self::session()->getIsActive() || self::session()->getHasSessionId();
+        return self::$_exists = self::session()?->getIsActive() || self::session()?->getHasSessionId();
     }
 
-    /**
-     * @var YiiSession|null
-     */
-    private static ?YiiSession $_session = null;
-
-    /**
-     * @var bool
-     */
-    private static bool $_exists = false;
-
     /**
      * Resets the memoized database connection.
      *
diff --git a/src/services/Api.php b/src/services/Api.php
index 7fcec58a961..43c65589999 100644
--- a/src/services/Api.php
+++ b/src/services/Api.php
@@ -11,6 +11,7 @@
 use craft\helpers\Api as ApiHelper;
 use craft\helpers\ArrayHelper;
 use craft\helpers\Json;
+use craft\helpers\Session;
 use GuzzleHttp\Client;
 use GuzzleHttp\Exception\RequestException;
 use GuzzleHttp\RequestOptions;
@@ -118,6 +119,9 @@ public function getCountries(): array
      */
     public function request(string $method, string $uri, array $options = []): ResponseInterface
     {
+        // Close the PHP session in case this takes a while
+        Session::close();
+
         $options = ArrayHelper::merge($options, [
             'headers' => ApiHelper::headers(),
         ]);
diff --git a/src/services/Webpack.php b/src/services/Webpack.php
index f22afad55b4..9ec57ce16e6 100644
--- a/src/services/Webpack.php
+++ b/src/services/Webpack.php
@@ -11,6 +11,7 @@
 use craft\helpers\App;
 use craft\helpers\ArrayHelper;
 use craft\helpers\FileHelper;
+use craft\helpers\Session;
 use craft\helpers\StringHelper;
 use Exception;
 use GuzzleHttp\Exception\GuzzleException;
@@ -214,6 +215,9 @@ private function _isDevServerRunning(string $class, string $loopback): bool
             return $this->_isDevServerRunning[$class] = $this->_matchAsset($this->_serverResponse[$loopback], $class);
         }
 
+        // Close the PHP session in case this takes a while
+        Session::close();
+
         // Make sure the request isn't too strict for people running the dev server using https and outside the container
         $client = Craft::createGuzzleClient(['verify' => false]);
         try {
diff --git a/src/web/Response.php b/src/web/Response.php
index 7f7e46589fa..a83b8cf73e8 100644
--- a/src/web/Response.php
+++ b/src/web/Response.php
@@ -9,6 +9,7 @@
 
 use Craft;
 use craft\helpers\ArrayHelper;
+use craft\helpers\Session;
 use craft\helpers\UrlHelper;
 use Throwable;
 use yii\base\Application as BaseApplication;
@@ -305,7 +306,7 @@ public function sendAndClose(): void
         $this->send();
 
         // Close the session.
-        Craft::$app->getSession()->close();
+        Session::close();
 
         // In case we're running on php-fpm (https://secure.php.net/manual/en/book.fpm.php)
         if (function_exists('fastcgi_finish_request')) {