diff --git a/server/routes/radarr.js b/server/routes/radarr.js
index 62ad882..77ed1b1 100644
--- a/server/routes/radarr.js
+++ b/server/routes/radarr.js
@@ -43,9 +43,13 @@ router.use(requireAuth);
 
 // Get queue
 router.get('/queue', async (req, res) => {
+  const instance = getFirstRadarrInstance();
+  if (!instance) {
+    return res.status(503).json({ error: 'Radarr not configured' });
+  }
   try {
-    const response = await axios.get(`${process.env.RADARR_URL}/api/v3/queue`, {
-      headers: { 'X-Api-Key': process.env.RADARR_API_KEY }
+    const response = await axios.get(`${instance.url}/api/v3/queue`, {
+      headers: { 'X-Api-Key': instance.apiKey }
     });
     res.json(response.data);
   } catch (error) {
@@ -79,9 +83,13 @@ router.get('/queue', async (req, res) => {
  */
 // Get history
 router.get('/history', async (req, res) => {
+  const instance = getFirstRadarrInstance();
+  if (!instance) {
+    return res.status(503).json({ error: 'Radarr not configured' });
+  }
   try {
-    const response = await axios.get(`${process.env.RADARR_URL}/api/v3/history`, {
-      headers: { 'X-Api-Key': process.env.RADARR_API_KEY },
+    const response = await axios.get(`${instance.url}/api/v3/history`, {
+      headers: { 'X-Api-Key': instance.apiKey },
       params: { pageSize: req.query.pageSize || 50 }
     });
     res.json(response.data);
@@ -92,9 +100,13 @@ router.get('/history', async (req, res) => {
 
 // Get movie details
 router.get('/movies/:id', async (req, res) => {
+  const instance = getFirstRadarrInstance();
+  if (!instance) {
+    return res.status(503).json({ error: 'Radarr not configured' });
+  }
   try {
-    const response = await axios.get(`${process.env.RADARR_URL}/api/v3/movie/${req.params.id}`, {
-      headers: { 'X-Api-Key': process.env.RADARR_API_KEY }
+    const response = await axios.get(`${instance.url}/api/v3/movie/${req.params.id}`, {
+      headers: { 'X-Api-Key': instance.apiKey }
     });
     res.json(response.data);
   } catch (error) {
@@ -104,9 +116,13 @@ router.get('/movies/:id', async (req, res) => {
 
 // Get all movies with tags
 router.get('/movies', async (req, res) => {
+  const instance = getFirstRadarrInstance();
+  if (!instance) {
+    return res.status(503).json({ error: 'Radarr not configured' });
+  }
   try {
-    const response = await axios.get(`${process.env.RADARR_URL}/api/v3/movie`, {
-      headers: { 'X-Api-Key': process.env.RADARR_API_KEY }
+    const response = await axios.get(`${instance.url}/api/v3/movie`, {
+      headers: { 'X-Api-Key': instance.apiKey }
     });
     res.json(response.data);
   } catch (error) {
@@ -164,9 +180,13 @@ router.get('/notifications', async (req, res) => {
 
 // GET /api/radarr/notifications/:id - get specific notification
 router.get('/notifications/:id', async (req, res) => {
+  const instance = getFirstRadarrInstance();
+  if (!instance) {
+    return res.status(503).json({ error: 'Radarr not configured' });
+  }
   try {
-    const response = await axios.get(`${process.env.RADARR_URL}/api/v3/notification/${req.params.id}`, {
-      headers: { 'X-Api-Key': process.env.RADARR_API_KEY }
+    const response = await axios.get(`${instance.url}/api/v3/notification/${req.params.id}`, {
+      headers: { 'X-Api-Key': instance.apiKey }
     });
     res.json(response.data);
   } catch (error) {
@@ -176,9 +196,13 @@ router.get('/notifications/:id', async (req, res) => {
 
 // POST /api/radarr/notifications - create notification
 router.post('/notifications', async (req, res) => {
+  const instance = getFirstRadarrInstance();
+  if (!instance) {
+    return res.status(503).json({ error: 'Radarr not configured' });
+  }
   try {
-    const response = await axios.post(`${process.env.RADARR_URL}/api/v3/notification`, req.body, {
-      headers: { 'X-Api-Key': process.env.RADARR_API_KEY }
+    const response = await axios.post(`${instance.url}/api/v3/notification`, req.body, {
+      headers: { 'X-Api-Key': instance.apiKey }
     });
     res.json(response.data);
   } catch (error) {
@@ -188,9 +212,13 @@ router.post('/notifications', async (req, res) => {
 
 // PUT /api/radarr/notifications/:id - update notification
 router.put('/notifications/:id', async (req, res) => {
+  const instance = getFirstRadarrInstance();
+  if (!instance) {
+    return res.status(503).json({ error: 'Radarr not configured' });
+  }
   try {
-    const response = await axios.put(`${process.env.RADARR_URL}/api/v3/notification/${req.params.id}`, req.body, {
-      headers: { 'X-Api-Key': process.env.RADARR_API_KEY }
+    const response = await axios.put(`${instance.url}/api/v3/notification/${req.params.id}`, req.body, {
+      headers: { 'X-Api-Key': instance.apiKey }
     });
     res.json(response.data);
   } catch (error) {
@@ -200,9 +228,13 @@ router.put('/notifications/:id', async (req, res) => {
 
 // DELETE /api/radarr/notifications/:id - delete notification
 router.delete('/notifications/:id', async (req, res) => {
+  const instance = getFirstRadarrInstance();
+  if (!instance) {
+    return res.status(503).json({ error: 'Radarr not configured' });
+  }
   try {
-    const response = await axios.delete(`${process.env.RADARR_URL}/api/v3/notification/${req.params.id}`, {
-      headers: { 'X-Api-Key': process.env.RADARR_API_KEY }
+    const response = await axios.delete(`${instance.url}/api/v3/notification/${req.params.id}`, {
+      headers: { 'X-Api-Key': instance.apiKey }
     });
     res.json(response.data);
   } catch (error) {
@@ -233,9 +265,13 @@ router.post('/notifications/test', async (req, res) => {
 
 // GET /api/radarr/notifications/schema - get notification schema
 router.get('/notifications/schema', async (req, res) => {
+  const instance = getFirstRadarrInstance();
+  if (!instance) {
+    return res.status(503).json({ error: 'Radarr not configured' });
+  }
   try {
-    const response = await axios.get(`${process.env.RADARR_URL}/api/v3/notification/schema`, {
-      headers: { 'X-Api-Key': process.env.RADARR_API_KEY }
+    const response = await axios.get(`${instance.url}/api/v3/notification/schema`, {
+      headers: { 'X-Api-Key': instance.apiKey }
     });
     res.json(response.data);
   } catch (error) {
diff --git a/server/routes/sabnzbd.js b/server/routes/sabnzbd.js
index 1584a9f..1199d3c 100644
--- a/server/routes/sabnzbd.js
+++ b/server/routes/sabnzbd.js
@@ -4,6 +4,16 @@ const axios = require('axios');
 const router = express.Router();
 const requireAuth = require('../middleware/requireAuth');
 const sanitizeError = require('../utils/sanitizeError');
+const { getSABnzbdInstances } = require('../utils/config');
+
+// Helper to get first SABnzbd instance
+function getFirstSABnzbdInstance() {
+  const instances = getSABnzbdInstances();
+  if (!instances || instances.length === 0) {
+    return null;
+  }
+  return instances[0];
+}
 
 /**
  * @openapi
@@ -32,11 +42,15 @@ router.use(requireAuth);
 
 // GET /api/sabnzbd/queue
 router.get('/queue', async (req, res) => {
+  const instance = getFirstSABnzbdInstance();
+  if (!instance) {
+    return res.status(503).json({ error: 'SABnzbd not configured' });
+  }
   try {
-    const response = await axios.get(`${process.env.SABNZBD_URL}/api`, {
+    const response = await axios.get(`${instance.url}/api`, {
       params: {
         mode: 'queue',
-        apikey: process.env.SABNZBD_API_KEY,
+        apikey: instance.apiKey,
         output: 'json'
       }
     });
@@ -72,11 +86,15 @@ router.get('/queue', async (req, res) => {
  */
 // GET /api/sabnzbd/history
 router.get('/history', async (req, res) => {
+  const instance = getFirstSABnzbdInstance();
+  if (!instance) {
+    return res.status(503).json({ error: 'SABnzbd not configured' });
+  }
   try {
-    const response = await axios.get(`${process.env.SABNZBD_URL}/api`, {
+    const response = await axios.get(`${instance.url}/api`, {
       params: {
         mode: 'history',
-        apikey: process.env.SABNZBD_API_KEY,
+        apikey: instance.apiKey,
         output: 'json',
         limit: req.query.limit || 50
       }
diff --git a/server/routes/sonarr.js b/server/routes/sonarr.js
index be905d7..f5fe586 100644
--- a/server/routes/sonarr.js
+++ b/server/routes/sonarr.js
@@ -43,9 +43,13 @@ router.use(requireAuth);
 
 // Get queue
 router.get('/queue', async (req, res) => {
+  const instance = getFirstSonarrInstance();
+  if (!instance) {
+    return res.status(503).json({ error: 'Sonarr not configured' });
+  }
   try {
-    const response = await axios.get(`${process.env.SONARR_URL}/api/v3/queue`, {
-      headers: { 'X-Api-Key': process.env.SONARR_API_KEY }
+    const response = await axios.get(`${instance.url}/api/v3/queue`, {
+      headers: { 'X-Api-Key': instance.apiKey }
     });
     res.json(response.data);
   } catch (error) {
@@ -79,9 +83,13 @@ router.get('/queue', async (req, res) => {
  */
 // Get history
 router.get('/history', async (req, res) => {
+  const instance = getFirstSonarrInstance();
+  if (!instance) {
+    return res.status(503).json({ error: 'Sonarr not configured' });
+  }
   try {
-    const response = await axios.get(`${process.env.SONARR_URL}/api/v3/history`, {
-      headers: { 'X-Api-Key': process.env.SONARR_API_KEY },
+    const response = await axios.get(`${instance.url}/api/v3/history`, {
+      headers: { 'X-Api-Key': instance.apiKey },
       params: { pageSize: req.query.pageSize || 50 }
     });
     res.json(response.data);
@@ -92,9 +100,13 @@ router.get('/history', async (req, res) => {
 
 // Get series details
 router.get('/series/:id', async (req, res) => {
+  const instance = getFirstSonarrInstance();
+  if (!instance) {
+    return res.status(503).json({ error: 'Sonarr not configured' });
+  }
   try {
-    const response = await axios.get(`${process.env.SONARR_URL}/api/v3/series/${req.params.id}`, {
-      headers: { 'X-Api-Key': process.env.SONARR_API_KEY }
+    const response = await axios.get(`${instance.url}/api/v3/series/${req.params.id}`, {
+      headers: { 'X-Api-Key': instance.apiKey }
     });
     res.json(response.data);
   } catch (error) {
@@ -104,9 +116,13 @@ router.get('/series/:id', async (req, res) => {
 
 // Get all series with tags
 router.get('/series', async (req, res) => {
+  const instance = getFirstSonarrInstance();
+  if (!instance) {
+    return res.status(503).json({ error: 'Sonarr not configured' });
+  }
   try {
-    const response = await axios.get(`${process.env.SONARR_URL}/api/v3/series`, {
-      headers: { 'X-Api-Key': process.env.SONARR_API_KEY }
+    const response = await axios.get(`${instance.url}/api/v3/series`, {
+      headers: { 'X-Api-Key': instance.apiKey }
     });
     res.json(response.data);
   } catch (error) {
@@ -164,9 +180,13 @@ router.get('/notifications', async (req, res) => {
 
 // GET /api/sonarr/notifications/:id - get specific notification
 router.get('/notifications/:id', async (req, res) => {
+  const instance = getFirstSonarrInstance();
+  if (!instance) {
+    return res.status(503).json({ error: 'Sonarr not configured' });
+  }
   try {
-    const response = await axios.get(`${process.env.SONARR_URL}/api/v3/notification/${req.params.id}`, {
-      headers: { 'X-Api-Key': process.env.SONARR_API_KEY }
+    const response = await axios.get(`${instance.url}/api/v3/notification/${req.params.id}`, {
+      headers: { 'X-Api-Key': instance.apiKey }
     });
     res.json(response.data);
   } catch (error) {
@@ -176,9 +196,13 @@ router.get('/notifications/:id', async (req, res) => {
 
 // POST /api/sonarr/notifications - create notification
 router.post('/notifications', async (req, res) => {
+  const instance = getFirstSonarrInstance();
+  if (!instance) {
+    return res.status(503).json({ error: 'Sonarr not configured' });
+  }
   try {
-    const response = await axios.post(`${process.env.SONARR_URL}/api/v3/notification`, req.body, {
-      headers: { 'X-Api-Key': process.env.SONARR_API_KEY }
+    const response = await axios.post(`${instance.url}/api/v3/notification`, req.body, {
+      headers: { 'X-Api-Key': instance.apiKey }
     });
     res.json(response.data);
   } catch (error) {
@@ -188,9 +212,13 @@ router.post('/notifications', async (req, res) => {
 
 // PUT /api/sonarr/notifications/:id - update notification
 router.put('/notifications/:id', async (req, res) => {
+  const instance = getFirstSonarrInstance();
+  if (!instance) {
+    return res.status(503).json({ error: 'Sonarr not configured' });
+  }
   try {
-    const response = await axios.put(`${process.env.SONARR_URL}/api/v3/notification/${req.params.id}`, req.body, {
-      headers: { 'X-Api-Key': process.env.SONARR_API_KEY }
+    const response = await axios.put(`${instance.url}/api/v3/notification/${req.params.id}`, req.body, {
+      headers: { 'X-Api-Key': instance.apiKey }
     });
     res.json(response.data);
   } catch (error) {
@@ -200,9 +228,13 @@ router.put('/notifications/:id', async (req, res) => {
 
 // DELETE /api/sonarr/notifications/:id - delete notification
 router.delete('/notifications/:id', async (req, res) => {
+  const instance = getFirstSonarrInstance();
+  if (!instance) {
+    return res.status(503).json({ error: 'Sonarr not configured' });
+  }
   try {
-    const response = await axios.delete(`${process.env.SONARR_URL}/api/v3/notification/${req.params.id}`, {
-      headers: { 'X-Api-Key': process.env.SONARR_API_KEY }
+    const response = await axios.delete(`${instance.url}/api/v3/notification/${req.params.id}`, {
+      headers: { 'X-Api-Key': instance.apiKey }
     });
     res.json(response.data);
   } catch (error) {
@@ -233,9 +265,13 @@ router.post('/notifications/test', async (req, res) => {
 
 // GET /api/sonarr/notifications/schema - get notification schema
 router.get('/notifications/schema', async (req, res) => {
+  const instance = getFirstSonarrInstance();
+  if (!instance) {
+    return res.status(503).json({ error: 'Sonarr not configured' });
+  }
   try {
-    const response = await axios.get(`${process.env.SONARR_URL}/api/v3/notification/schema`, {
-      headers: { 'X-Api-Key': process.env.SONARR_API_KEY }
+    const response = await axios.get(`${instance.url}/api/v3/notification/schema`, {
+      headers: { 'X-Api-Key': instance.apiKey }
     });
     res.json(response.data);
   } catch (error) {