diff --git a/README.md b/README.md
index c09fbbf..0f57795 100644
--- a/README.md
+++ b/README.md
@@ -14,6 +14,9 @@ Using
 Copy `bot.conf.example` to `bot.conf` and run `python3 ircbot.py`. You can also
 test the game logic by doing `python3 gameloop.py` directly.
 
+`dump_deck.py` and `random_deck.py` are stand-alone toola for interacting with
+Cardcast API. They use `cardcast_api.py` to do the requests.
+
 License
 -------
 Everything in this repo is under CC0.