diff --git a/api/auth/auth_project.py b/api/auth/auth_project.py
new file mode 100644
index 000000000..98a495bbb
--- /dev/null
+++ b/api/auth/auth_project.py
@@ -0,0 +1,24 @@
+from fastapi import Request
+from starlette import status
+from starlette.exceptions import HTTPException
+
+import schemas
+from chalicelib.core import projects
+from or_dependencies import OR_context
+
+
+class ProjectAuthorizer:
+    def __init__(self, project_identifier):
+        self.project_identifier: str = project_identifier
+
+    async def __call__(self, request: Request) -> None:
+        if len(request.path_params.keys()) == 0 or request.path_params.get(self.project_identifier) is None:
+            return
+        current_user: schemas.CurrentContext = await OR_context(request)
+        project_identifier = request.path_params[self.project_identifier]
+        if (self.project_identifier == "projectId" \
+            and projects.get_project(project_id=project_identifier, tenant_id=current_user.tenant_id) is None) \
+                or (self.project_identifier.lower() == "projectKey" \
+                    and projects.get_internal_project_id(project_key=project_identifier) is None):
+            print("project not found")
+            raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="project not found.")