diff --git a/services/capture/src/routes/capture.js b/services/capture/src/routes/capture.js
index 4c34892..af11eaa 100644
--- a/services/capture/src/routes/capture.js
+++ b/services/capture/src/routes/capture.js
@@ -64,21 +64,21 @@ router.get('/status', (req, res) => {
 /**
  * POST /start
  * Start a new capture session
- * Body: { project_id, bin_id, clip_name, device }
+ * Body: { project_id, clip_name, device, bin_id? }
  */
 router.post('/start', async (req, res) => {
   try {
     const { project_id, bin_id, clip_name, device } = req.body;
 
-    if (!project_id || !bin_id || !clip_name || device === undefined) {
+    if (!project_id || !clip_name || device === undefined) {
       return res.status(400).json({
-        error: 'Missing required fields: project_id, bin_id, clip_name, device',
+        error: 'Missing required fields: project_id, clip_name, device',
       });
     }
 
     const session = await captureManager.start({
       projectId: project_id,
-      binId: bin_id,
+      binId: bin_id || null,
       clipName: clip_name,
       device,
     });