diff --git a/For-developers.md b/For-developers.md
index 4cf296a..be66549 100644
--- a/For-developers.md
+++ b/For-developers.md
@@ -5,4 +5,6 @@ If you are new to **RSS-Bridge** you should make yourself familiar with some gen
   - [Folder structure](Folder-structure)
   - [Debug mode](Debug-mode)
   - [Bridge API](Bridge API)
+  - [Cache API](Cache API) (if you want to create your own caching type)
+  - [Format API](Format API) (if you want to create your own output format)
   - [Technical recommendations](Technical-Recommendations)
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