diff --git a/cmd/wgsd-client/README.md b/cmd/wgsd-client/README.md
new file mode 100644
index 0000000..6d4f718
--- /dev/null
+++ b/cmd/wgsd-client/README.md
@@ -0,0 +1,13 @@
+# wgsd-client
+`wgsd-client` is responsible for keeping peer endpoint configuration up to date. It retrieves the list of configured peers, queries `wgsd` for matching public keys, and then sets the endpoint value for each peer if needed. This client is intended to be run periodically via cron or similar scheduling mechanism. It checks all peers once in a serialized fashion and then exits.
+
+```
+% ./wgsd-client --help
+Usage of ./wgsd-client:
+  -device string
+    	name of Wireguard device to manage
+  -dns string
+    	ip:port of DNS server
+  -zone string
+    	dns zone name
+```
\ No newline at end of file