diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -22,6 +22,9 @@ Just overwrite everything with the latest release while keeping the `/data` dire
 
 ## Things worth to know
 
+### REST API & data model documentation
+See the integrated Swagger UI instance on [/api](https://demo-en.grocy.info/api).
+
 ### Barcode readers
 Some fields also allow to select a value by scanning a barcode. It works best when your barcode reader prefixes every barcode with a letter which is normally not part of a item name (I use a `$`) and sends a `TAB` after a scan.