diff --git a/importTools/update_locations.py b/importTools/update_locations.py
index 1a0327e7..9b1f9fc6 100755
--- a/importTools/update_locations.py
+++ b/importTools/update_locations.py
@@ -151,6 +151,7 @@ def __init__(self, name):
             "login_path": "/".join(
                 [self.address.strip("/"), os.environ[f"{name}_LOGIN"].strip("/")]
             ),
+            "token_prefix": os.environ.get(f"{name}_TOKEN_PREFIX"),
         }
 
 
diff --git a/sdk/python/scilog/authmixin.py b/sdk/python/scilog/authmixin.py
index cc8cb1d8..cad851e8 100644
--- a/sdk/python/scilog/authmixin.py
+++ b/sdk/python/scilog/authmixin.py
@@ -22,6 +22,7 @@ def __init__(self, address, options=None):
         self._username = options.get("username")
         self._password = options.get("password")
         self._login_path = options.get("login_path")
+        self.options = options
 
     def __repr__(self):
         tn = typename(self)
diff --git a/sdk/python/scilog/scicat.py b/sdk/python/scilog/scicat.py
index f089ffca..5e2c8577 100644
--- a/sdk/python/scilog/scicat.py
+++ b/sdk/python/scilog/scicat.py
@@ -1,4 +1,4 @@
-from .authmixin import HEADER_JSON, AuthError, AuthMixin
+from .authmixin import HEADER_JSON, AuthError
 from .httpclient import HttpClient
 
 
@@ -6,12 +6,13 @@ class SciCatRestAPI(HttpClient):
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
         self.login_path = self._login_path or "https://dacat.psi.ch/auth/msad"
+        self.token_prefix = self.options.get("token_prefix", "")
 
     def authenticate(self, username, password):
         auth_payload = {"username": username, "password": password}
         res = self._login(auth_payload, HEADER_JSON)
         try:
-            token = res["id"]
+            token = f"{self.token_prefix}{res['id']}"
         except KeyError as e:
             raise SciCatAuthError(res) from e
         else:
diff --git a/sdk/python/tests/test_scicat.py b/sdk/python/tests/test_scicat.py
new file mode 100644
index 00000000..e9a84bce
--- /dev/null
+++ b/sdk/python/tests/test_scicat.py
@@ -0,0 +1,47 @@
+from unittest.mock import ANY, Mock, patch
+
+import pytest
+
+from scilog import SciCat
+
+
+@patch("requests.post")
+@patch("requests.get")
+@pytest.mark.parametrize(
+    "token_prefix",
+    [
+        "",
+        "Bearer ",
+    ],
+)
+def test_get_proposals(mock_post, mock_get, token_prefix):
+    address = "http://scicat"
+    options = {
+        "username": f"username{token_prefix}",
+        "password": "password",
+        "login_path": f"{address}/login",
+        "token_prefix": token_prefix,
+    }
+    headers = {"Content-type": "application/json", "Accept": "application/json"}
+    token = "token123"
+
+    scicat = SciCat(address, options=options)
+    mock_response = Mock()
+    mock_response.json.return_value = {"id": token}
+    mock_get.return_value = mock_response
+    scicat.http_client.config = {}
+    scicat.proposals
+    mock_get.assert_called_with(
+        options["login_path"],
+        json={"username": options["username"], "password": options["password"]},
+        headers=headers,
+        timeout=ANY,
+        verify=True,
+    )
+    mock_post.assert_called_with(
+        f"{address}/proposals",
+        params=None,
+        headers={**headers, "Authorization": f"{token_prefix}{token}"},
+        timeout=ANY,
+        verify=True,
+    )