diff --git a/services/mam-api/src/routes/recorders.js b/services/mam-api/src/routes/recorders.js
index be03e41..c1496d9 100644
--- a/services/mam-api/src/routes/recorders.js
+++ b/services/mam-api/src/routes/recorders.js
@@ -46,6 +46,31 @@ function generateClipName(recorderName) {
   return `${recorderName}_${year}${month}${day}_${hours}${minutes}${seconds}`;
 }
 
+/**
+ * Build Docker PortBindings and ExposedPorts for listener-mode recorders.
+ * Returns { portBindings, exposedPorts } — both empty objects for non-listener sources.
+ */
+function buildPortConfig(sourceType, sourceConfig) {
+  const portBindings = {};
+  const exposedPorts = {};
+
+  if (sourceConfig && sourceConfig.mode === 'listener') {
+    if (sourceType === 'srt') {
+      const port = String(sourceConfig.listen_port || 9000);
+      const proto = `${port}/udp`;
+      portBindings[proto] = [{ HostPort: port }];
+      exposedPorts[proto] = {};
+    } else if (sourceType === 'rtmp') {
+      const port = String(sourceConfig.listen_port || 1935);
+      const proto = `${port}/tcp`;
+      portBindings[proto] = [{ HostPort: port }];
+      exposedPorts[proto] = {};
+    }
+  }
+
+  return { portBindings, exposedPorts };
+}
+
 // GET / - List all recorders
 router.get('/', async (req, res, next) => {
   try {
@@ -172,30 +197,57 @@ router.post('/:id/start', async (req, res, next) => {
     // Generate clip name with timestamp
     const clipName = generateClipName(recorder.name);
 
+    // Determine source config and whether this is a listener-mode recorder
+    const sourceConfig = recorder.source_config || {};
+    const isListener = sourceConfig.mode === 'listener';
+    const sourceType = recorder.source_type;
+
+    // Build port bindings for listener-mode SRT/RTMP containers
+    const { portBindings, exposedPorts } = buildPortConfig(sourceType, sourceConfig);
+
+    // Build container environment — pass all source params so the capture
+    // service can auto-start recording on container startup
+    const env = [
+      `S3_ENDPOINT=${s3Endpoint}`,
+      `S3_BUCKET=${s3Bucket}`,
+      `S3_ACCESS_KEY=${s3AccessKey}`,
+      `S3_SECRET_KEY=${s3SecretKey}`,
+      `S3_REGION=${process.env.S3_REGION || 'us-east-1'}`,
+      `MAM_API_URL=${mamApiUrl}`,
+      `RECORDER_ID=${id}`,
+      `SOURCE_TYPE=${sourceType}`,
+      `SOURCE_CONFIG=${JSON.stringify(sourceConfig)}`,
+      `RECORDING_CODEC=${recorder.recording_codec}`,
+      `RECORDING_RESOLUTION=${recorder.recording_resolution}`,
+      `PROXY_ENABLED=${recorder.proxy_enabled}`,
+      `PROXY_CODEC=${recorder.proxy_codec}`,
+      `PROXY_RESOLUTION=${recorder.proxy_resolution}`,
+      `PROJECT_ID=${recorder.project_id}`,
+      `CLIP_NAME=${clipName}`,
+    ];
+
+    // Add source-specific env vars for SRT/RTMP
+    if (sourceType === 'srt' || sourceType === 'rtmp') {
+      env.push(`LISTEN=${isListener ? '1' : '0'}`);
+      if (isListener) {
+        env.push(`LISTEN_PORT=${sourceConfig.listen_port || (sourceType === 'srt' ? 9000 : 1935)}`);
+        if (sourceType === 'rtmp' && sourceConfig.stream_key) {
+          env.push(`STREAM_KEY=${sourceConfig.stream_key}`);
+        }
+      } else if (sourceConfig.url) {
+        env.push(`SOURCE_URL=${sourceConfig.url}`);
+      }
+    }
+
     // Build container config
     const containerConfig = {
       Image: 'wild-dragon-capture:latest',
-      Env: [
-        `S3_ENDPOINT=${s3Endpoint}`,
-        `S3_BUCKET=${s3Bucket}`,
-        `S3_ACCESS_KEY=${s3AccessKey}`,
-        `S3_SECRET_KEY=${s3SecretKey}`,
-        `S3_REGION=${process.env.S3_REGION || 'us-east-1'}`,
-        `MAM_API_URL=${mamApiUrl}`,
-        `RECORDER_ID=${id}`,
-        `SOURCE_TYPE=${recorder.source_type}`,
-        `SOURCE_CONFIG=${JSON.stringify(recorder.source_config)}`,
-        `RECORDING_CODEC=${recorder.recording_codec}`,
-        `RECORDING_RESOLUTION=${recorder.recording_resolution}`,
-        `PROXY_ENABLED=${recorder.proxy_enabled}`,
-        `PROXY_CODEC=${recorder.proxy_codec}`,
-        `PROXY_RESOLUTION=${recorder.proxy_resolution}`,
-        `PROJECT_ID=${recorder.project_id}`,
-        `CLIP_NAME=${clipName}`,
-      ],
+      Env: env,
+      ExposedPorts: Object.keys(exposedPorts).length > 0 ? exposedPorts : undefined,
       HostConfig: {
         Privileged: true,
         NetworkMode: dockerNetwork,
+        PortBindings: Object.keys(portBindings).length > 0 ? portBindings : undefined,
       },
       Hostname: `recorder-${recorder.name.toLowerCase().replace(/[^a-z0-9]/g, '-')}`,
     };