diff --git a/lowatt_grdf/api.py b/lowatt_grdf/api.py
index b7b7b11..6f3a64f 100644
--- a/lowatt_grdf/api.py
+++ b/lowatt_grdf/api.py
@@ -28,8 +28,6 @@
 
 from . import LOGGER, models
 
-OPENID_ENDPOINT = "https://sofit-sso-oidc.grdf.fr/openam/oauth2/realms/externeGrdf"
-
 
 def raise_for_status(resp: requests.Response) -> None:
     try:
@@ -54,6 +52,11 @@ def scope(self) -> str:
     def api(self) -> str:
         raise NotImplementedError()
 
+    @property
+    @abc.abstractmethod
+    def auth_endpoint(self) -> str:
+        raise NotImplementedError()
+
     def __init__(self, client_id: str, client_secret: str):
         self.client_id = client_id
         self.client_secret = client_secret
@@ -88,7 +91,7 @@ def access_token(self) -> str:
 
     def _authenticate(self) -> tuple[str, float]:
         resp = requests.post(
-            f"{OPENID_ENDPOINT}/access_token",
+            self.auth_endpoint,
             data={
                 "grant_type": "client_credentials",
                 "client_id": self.client_id,
@@ -214,8 +217,14 @@ def donnees_techniques(self, pce: str) -> Any:
 class StagingAPI(BaseAPI):
     scope = "/adict/bas/v4"
     api = "https://api.grdf.fr/adict/bas/v4"
+    auth_endpoint = (
+        "https://sofit-sso-oidc.grdf.fr/openam/oauth2/realms/externeGrdf/access_token"
+    )
 
 
 class API(BaseAPI):
     scope = "/adict/v2"
     api = "https://api.grdf.fr/adict/v2"
+    auth_endpoint = (
+        "https://adict-connexion.grdf.fr/oauth2/aus5y2ta2uEHjCWIR417/v1/token"
+    )