diff --git a/docs/api.md b/docs/api.md
index b3f20da..059a379 100644
--- a/docs/api.md
+++ b/docs/api.md
@@ -2,6 +2,9 @@
 
 This document describes the PiKVM API. Since the system consists of microservices, here is a common API with a common entry point provided by Nginx. The examples above use `curl` and [`websocat`](https://github.com/vi/websocat) with the `-k` option to disable SSL certificate verification, since the self-signed certificateis used in the default installation.
 
+There is a [third-party library](https://github.com/guanana/pikvm-lib) for using the PiKVM API.
+Please note that this is an unofficial library, so use it carefully.
+
 
 -----
 ## Authentication