diff --git a/API-Reference.md b/API-Reference.md
index a7bf175..011fbd1 100644
--- a/API-Reference.md
+++ b/API-Reference.md
@@ -1,6 +1,6 @@
 # API Reference
 
-This page summarizes the key classes in **Conflux**.
+This page summarizes the key classes in **Conflux**. For the complete documentation, read [Conflux Javadoc](https://www.egothor.org/javadoc/conflux/).
 
 ## Ctx