diff --git a/lib/hostas_web.ex b/lib/hostas_web.ex
index ad0d0b1..b894b09 100644
--- a/lib/hostas_web.ex
+++ b/lib/hostas_web.ex
@@ -46,6 +46,8 @@ defmodule HostasWeb do
       import HostasWeb.Gettext
 
       unquote(verified_routes())
+
+      import HostasWeb.ControllerHelpers
     end
   end
 
diff --git a/lib/hostas_web/controller_helpers.ex b/lib/hostas_web/controller_helpers.ex
new file mode 100644
index 0000000..4b6ae22
--- /dev/null
+++ b/lib/hostas_web/controller_helpers.ex
@@ -0,0 +1,11 @@
+defmodule HostasWeb.ControllerHelpers do
+  import Plug.Conn
+
+  @doc """
+  Mark an endpoint as unimplemented
+  """
+  def unimplemented(conn) do
+    conn
+    |> send_resp(501, "")
+  end
+end
diff --git a/lib/hostas_web/controllers/denizen_controller.ex b/lib/hostas_web/controllers/denizen_controller.ex
new file mode 100644
index 0000000..8b8bb09
--- /dev/null
+++ b/lib/hostas_web/controllers/denizen_controller.ex
@@ -0,0 +1,24 @@
+defmodule HostasWeb.DenizenController do
+  # import Ecto.Query, only: [from: 2]
+  use HostasWeb, :controller
+
+  # alias Hostas.Repo
+  # alias Hostas.Denizen
+  # alias Hostas.Token
+
+  def open(conn, _params) do
+    unimplemented(conn)
+  end
+
+  def close(conn, _params) do
+    unimplemented(conn)
+  end
+
+  def show(conn, _params) do
+    unimplemented(conn)
+  end
+
+  def update(conn, _params) do
+    unimplemented(conn)
+  end
+end
diff --git a/lib/hostas_web/router.ex b/lib/hostas_web/router.ex
index b4f1680..84be245 100644
--- a/lib/hostas_web/router.ex
+++ b/lib/hostas_web/router.ex
@@ -35,6 +35,12 @@ defmodule HostasWeb.Router do
     get "/auth/token", Auth.TokenController, :verify
     delete "/auth/token/:id", Auth.TokenController, :revoke
     get "/auth/token/:id/renew", Auth.TokenController, :renew
+
+    post "/denizen", DenizenController, :open
+    delete "/denizen/:id", DenizenController, :close
+    get "/denizen/:id", DenizenController, :show
+    patch "/denizen/:id", DenizenController, :update
+
   end
 
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