From 6f03fd80327e5ddd73a2e5dba672d478b51ba058 Mon Sep 17 00:00:00 2001
From: Theis Gaedigk <theis.gaedigk@icloud.com>
Date: Tue, 11 Nov 2025 21:08:10 +0100
Subject: [PATCH] Update API documentation to clarify API key requirements

---
 Docs/backend_API_docs/README.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Docs/backend_API_docs/README.md b/Docs/backend_API_docs/README.md
index c56d3d2..b9bb134 100644
--- a/Docs/backend_API_docs/README.md
+++ b/Docs/backend_API_docs/README.md
@@ -30,6 +30,10 @@ _I have also build a [fallback page](https://git.the1s.de/theis.gaedigk/fallback
 
 All endpoints require an API key as a path parameter named `:key`.
 
+**The API key must be always 15 characters long and can only contain numbers.**
+
+You can get the API key from the admin dashboard.
+
 Example: `/api/items/:key`
 
 If the key is missing or invalid, the API responds with `401 Unauthorized`.