diff --git a/spotify_client.py b/spotify_client.py
index c6d530f..07f84ed 100644
--- a/spotify_client.py
+++ b/spotify_client.py
@@ -12,6 +12,8 @@ class SpotifyClient:
 
     user_data = None
 
+    _api_token = os.getenv('api-token')
+
     def __init__(self, sp_dc=None, sp_key=None):
         self.dc = sp_dc
         self.key = sp_key
@@ -115,7 +117,7 @@ class SpotifyClient:
             prem_keys[cookie['name']] = cookie['value']
         return prem_keys
 
-    def get(self, url: str) -> Response:
+    def get(self, url: str, dev:bool=False) -> Response:
         with requests.session() as session:
             session.proxies = self._proxy
 
@@ -123,7 +125,7 @@ class SpotifyClient:
                 'User-Agent': self.__USER_AGENT,
                 'Accept': 'application/json',
                 'Client-Token': self._client_token,
-                'Authorization': f'Bearer {self._access_token}',
+                'Authorization': f'Bearer {self._access_token if not dev else self._api_token}',
                 'Origin': 'https://open.spotify.com',
                 'Sec-Fetch-Dest': 'empty',
                 'Sec-Fetch-Mode': 'cors',
diff --git a/spotify_scraper.py b/spotify_scraper.py
index dedf9ad..0e00ec2 100644
--- a/spotify_scraper.py
+++ b/spotify_scraper.py
@@ -107,8 +107,8 @@ class SpotifyScraper:
                 for track in self.scrape_album_tracks(album.spotify_id):
                     yield track
 
-    def get(self, url: str) -> Response:
-        return self._client.get(url)
+    def get(self, url: str, dev:bool=False) -> Response:
+        return self._client.get(url, dev=dev)
 
     def post(self, url: str, payload=None) -> Response:
         return self._client.post(url, payload=payload)
@@ -125,6 +125,13 @@ class SpotifyScraper:
         except Exception as ex:
             return ''
 
+    def get_tracks_features(self, track_ids: list[str]) -> dict[str,str]:
+        resp = self.get(f'https://api.spotify.com/v1/audio-features?ids={",".join(track_ids)}', dev=True).json()
+        features = {}
+        for feature in resp['audio_features']:
+            features[feature['id']] = feature
+        return features
+
     def get_category_playlist_ids(self, category_id: str, limit=50, offset=0) -> str:
         playlist_ids = []
         current_offset = offset