diff --git a/app/Mcp/Tools/Post/RequestMediaUploadTool.php b/app/Mcp/Tools/Post/RequestMediaUploadTool.php
index 1352458e..2f1e4b9c 100644
--- a/app/Mcp/Tools/Post/RequestMediaUploadTool.php
+++ b/app/Mcp/Tools/Post/RequestMediaUploadTool.php
@@ -25,7 +25,7 @@ public function handle(Request $request): Response|ResponseFactory
 
         // Same ceiling the web/API FormRequests use (largest per-type cap).
         $maxBytes = MediaType::Video->maxSizeInBytes();
-        $ttlMinutes = (int) config('ai.mcp.upload.url_ttl_minutes');
+        $ttlMinutes = (int) config('trypost.media.signed_upload_url_ttl_minutes');
 
         $token = (string) Str::uuid();
         $expiresAt = CarbonImmutable::now()->addMinutes($ttlMinutes);
diff --git a/config/ai.php b/config/ai.php
index 228d6fc9..1a393ff0 100644
--- a/config/ai.php
+++ b/config/ai.php
@@ -39,23 +39,6 @@
         ],
     ],
 
-    /*
-    |--------------------------------------------------------------------------
-    | MCP Media Upload
-    |--------------------------------------------------------------------------
-    |
-    | Settings for the MCP signed-URL upload flow. Size caps come from
-    | config('trypost.media.max_size_mb') via Media\Type — same source as
-    | web and REST API uploads.
-    |
-    */
-
-    'mcp' => [
-        'upload' => [
-            'url_ttl_minutes' => (int) env('MCP_UPLOAD_URL_TTL_MINUTES', 15),
-        ],
-    ],
-
     /*
     |--------------------------------------------------------------------------
     | AI Providers
diff --git a/config/trypost.php b/config/trypost.php
index 96749e8a..3196567e 100644
--- a/config/trypost.php
+++ b/config/trypost.php
@@ -56,6 +56,9 @@
     | uploads (StoreAssetRequest, AssetController::storeChunked), URL
     | fetches (MediaAttacher), and the MediaType enum all read from here.
     |
+    | signed_upload_url_ttl_minutes controls the temporary signed POST URL
+    | issued for api.uploads.store (MCP / direct upload flow).
+    |
     */
 
     'media' => [
@@ -65,6 +68,7 @@
             // LinkedIn caps document (PDF carousel) uploads at 100MB.
             'document' => (int) env('MEDIA_DOCUMENT_MAX_SIZE_MB', 100),
         ],
+        'signed_upload_url_ttl_minutes' => (int) env('MEDIA_SIGNED_UPLOAD_URL_TTL_MINUTES', 15),
     ],
 
     /*