diff --git a/API-Docs.md b/API-Docs.md
index 83bcef5..f85d786 100644
--- a/API-Docs.md
+++ b/API-Docs.md
@@ -302,14 +302,16 @@ __________________________________________________________________
 **Input**:
 ```
 {
-  Nothing
+  "countContributingUsers": boolean //Optional, default false
 }
 ```
 
 **Response**:
 ```
 {
-  userCount: int,
+  userCount: int, // Only if countContributingUsers was true
+  activeUsers: int, // Sum of public install stats from Chrome webstore and Firefox addons store
+  apiUsers: int, // 48-hour active API users (https://github.com/ajayyy/PrivacyUserCount)
   viewCount: int,
   totalSubmissions: int,
   minutesSaved: float