diff --git a/apiclient/discovery.py b/apiclient/discovery.py
index ea76d97..5ae7f02 100644
--- a/apiclient/discovery.py
+++ b/apiclient/discovery.py
@@ -112,6 +112,7 @@
   d = simplejson.load(f)
   f.close()
   future = d['data'][serviceName][version]['resources']
+  auth_discovery = d['data'][serviceName][version]['auth']
 
   base = service['baseUrl']
   resources = service['resources']
@@ -124,6 +125,9 @@
       self._baseUrl = base
       self._model = model
 
+    def auth_discovery(self):
+      return auth_discovery
+
   def createMethod(theclass, methodName, methodDesc, futureDesc):
 
     def method(self, **kwargs):