diff --git a/core/services/loaded_models_service.py b/core/services/loaded_models_service.py
index 9391e6a..00ff8e1 100644
--- a/core/services/loaded_models_service.py
+++ b/core/services/loaded_models_service.py
@@ -7,17 +7,17 @@ class LoadedModelsService:
     """Build the list of models loaded by a workflow and expose its progress."""
 
     def __init__(self, context: RouteContext):
-        self.adapt_custom_node_loaded_model = context.get(
+        self.adapt_custom_node_loaded_model = context.require(
             "adapt_custom_node_loaded_model"
         )
-        self.asyncio = context.get("asyncio")
-        self.get_filename_from_path = context.get("get_filename_from_path")
-        self.get_progress_response = context.get("get_progress_response")
-        self.get_workflow_model_inventory = context.get(
+        self.asyncio = context.require("asyncio")
+        self.get_filename_from_path = context.require("get_filename_from_path")
+        self.get_progress_response = context.require("get_progress_response")
+        self.get_workflow_model_inventory = context.require(
             "get_workflow_model_inventory"
         )
-        self.extension = context.get("self")
-        self.web = context.get("web")
+        self.extension = context.require("self")
+        self.web = context.require("web")
 
     async def get_loaded_models(self, request):
         """Get all currently loaded models in the workflow."""
diff --git a/tests/test_route_context_contract.py b/tests/test_route_context_contract.py
index 229198a..ade96cc 100644
--- a/tests/test_route_context_contract.py
+++ b/tests/test_route_context_contract.py
@@ -2,6 +2,7 @@ import pytest
 
 from core.routes.context import RouteContext
 from core.services.directory_service import DirectoryService
+from core.services.loaded_models_service import LoadedModelsService
 from core.services.scanner_service import ScannerService
 from core.services.workflow_service import WorkflowService
 
@@ -45,3 +46,11 @@ def test_workflow_service_requires_mandatory_route_dependencies():
         match="Missing route dependency: analyze_and_find_matches",
     ):
         WorkflowService(RouteContext({"self": extension}))
+
+
+def test_loaded_models_service_requires_mandatory_route_dependencies():
+    with pytest.raises(
+        KeyError,
+        match="Missing route dependency: adapt_custom_node_loaded_model",
+    ):
+        LoadedModelsService(RouteContext({}))