diff --git a/lib/hydra/stdio.rb b/lib/hydra/stdio.rb
new file mode 100644
index 0000000..e2bd789
--- /dev/null
+++ b/lib/hydra/stdio.rb
@@ -0,0 +1,14 @@
+require 'hydra/messaging_io'
+module Hydra #:nodoc:
+  # Read and write via stdout and stdin.
+  class Stdio
+    include Hydra::MessagingIO
+
+    # Initialize new Stdio
+    def initialize()
+      @reader = $stdin
+      @writer = $stdout
+    end
+  end
+end
+