diff --git a/CHANGELOG.md b/CHANGELOG.md
index 84e9a1e71..679770ac0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -19,6 +19,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - `DataCube.sar_backscatter()`: add corresponding band names to metadata when enabling "mask", "contributing_area", "local_incidence_angle" or "ellipsoid_incidence_angle" ([#804](https://github.com/Open-EO/openeo-python-client/issues/804))
 - Proactively refresh access/bearer token in `MultiBackendJobManager` before launching a job start thread ([#817](https://github.com/Open-EO/openeo-python-client/issues/817))
+- `Connection.list_services()`: Fix list access error for federation extension
 
 
 ## [0.45.0] - 2025-09-17
diff --git a/openeo/rest/connection.py b/openeo/rest/connection.py
index 4a457c03b..5625ef479 100644
--- a/openeo/rest/connection.py
+++ b/openeo/rest/connection.py
@@ -848,12 +848,12 @@ def list_services(self) -> list:
         :return: data_dict: Dict All available services
         """
         # TODO return parsed service objects
-        services = self.get('/services', expected_status=200).json()["services"]
-        federation_missing = federation_extension.get_federation_missing(data=services, resource_name="services")
+        response = self.get("/services", expected_status=200).json()
+        federation_missing = federation_extension.get_federation_missing(data=response, resource_name="services")
         federation = self.capabilities().ext_federation_backend_details()
         return VisualList(
             "data-table",
-            data=services,
+            data=response["services"],
             parameters={"columns": "services", "missing": federation_missing, "federation": federation},
         )
 
diff --git a/tests/rest/test_connection.py b/tests/rest/test_connection.py
index bda3d50c7..0fc0a3976 100644
--- a/tests/rest/test_connection.py
+++ b/tests/rest/test_connection.py
@@ -3810,6 +3810,63 @@ def test_list_service_types_error(requests_mock):
     assert m.call_count == 2
 
 
+def test_list_services(requests_mock):
+    requests_mock.get(API_URL, json={"api_version": "1.0.0"})
+    conn = Connection(API_URL)
+    requests_mock.get(
+        API_URL + "services",
+        json={
+            "services": [
+                {
+                    "id": "wms-a3cca9",
+                    "url": "https://openeo.example/wms/wms-a3cca9",
+                    "type": "wms",
+                    "enabled": True,
+                }
+            ],
+            "links": [],
+        },
+    )
+    assert conn.list_services() == [
+        {
+            "id": "wms-a3cca9",
+            "url": "https://openeo.example/wms/wms-a3cca9",
+            "type": "wms",
+            "enabled": True,
+        }
+    ]
+
+
+def test_list_services_federation_missing(requests_mock):
+    requests_mock.get(API_URL, json={"api_version": "1.0.0"})
+    conn = Connection(API_URL)
+    requests_mock.get(
+        API_URL + "services",
+        json={
+            "services": [
+                {
+                    "id": "wms-a3cca9",
+                    "url": "https://openeo.example/wms/wms-a3cca9",
+                    "type": "wms",
+                    "enabled": True,
+                }
+            ],
+            "links": [],
+            "federation:missing": ["oeob"],
+        },
+    )
+    services = conn.list_services()
+    assert services == [
+        {
+            "id": "wms-a3cca9",
+            "url": "https://openeo.example/wms/wms-a3cca9",
+            "type": "wms",
+            "enabled": True,
+        }
+    ]
+    assert services.parameters["missing"] == ["oeob"]
+
+
 def test_list_udf_runtimes(requests_mock):
     requests_mock.get(API_URL, json={"api_version": "1.0.0"})
     conn = Connection(API_URL)