diff --git a/source/api/index.md b/source/api/index.md
index ea41dae3..134e311d 100644
--- a/source/api/index.md
+++ b/source/api/index.md
@@ -1,10 +1,21 @@
 (api)=
 # API
 
+The latest version of the API documentation is [3.0](3.0/) 
+
+Older API docs for historical purposes
+- [2.3](2.3.0/)
+- [2.2](2.2.0/)
+- [2.1](2.1.0/)
+- [2.0](2.0.2/)
 
 ```{toctree}
+:hidden: true
 :maxdepth: 2
  
 3.0/index
+2.3.0/index
+2.2.0/index
+2.1.0/index
 ```