diff --git a/notebooks/api_search_tests.ipynb b/notebooks/api_search_tests.ipynb
index e633e94..af6ec53 100644
--- a/notebooks/api_search_tests.ipynb
+++ b/notebooks/api_search_tests.ipynb
@@ -17,7 +17,11 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "client = KptnCookClient()"
+    "from kptncook import Settings\n",
+    "\n",
+    "settings = Settings()\n",
+    "client = KptnCookClient(base_url=settings.kptncook_api_url, api_key=settings.kptncook_api_key,\n",
+    "                          access_token=settings.kptncook_access_token)"
    ]
   },
   {
diff --git a/notebooks/issue_25_broken_urls.ipynb b/notebooks/issue_25_broken_urls.ipynb
index 316c7bd..51671a0 100644
--- a/notebooks/issue_25_broken_urls.ipynb
+++ b/notebooks/issue_25_broken_urls.ipynb
@@ -2,31 +2,55 @@
  "cells": [
   {
    "cell_type": "code",
-   "execution_count": 1,
    "id": "0272802b-0e1a-4d20-950c-e37bca495e14",
-   "metadata": {},
-   "outputs": [],
+   "metadata": {
+    "ExecuteTime": {
+     "end_time": "2025-01-01T21:29:51.124582Z",
+     "start_time": "2025-01-01T21:29:51.122387Z"
+    }
+   },
    "source": [
     "from getpass import getpass\n",
     "\n",
     "from kptncook.api import KptnCookClient"
-   ]
+   ],
+   "outputs": [],
+   "execution_count": 3
   },
   {
    "cell_type": "code",
-   "execution_count": 3,
    "id": "c4c9892a-41ed-4741-b2b3-11a293213c9d",
-   "metadata": {},
-   "outputs": [],
+   "metadata": {
+    "ExecuteTime": {
+     "end_time": "2025-01-01T21:29:51.156264Z",
+     "start_time": "2025-01-01T21:29:51.154545Z"
+    }
+   },
    "source": [
     "# list_kptncook_today()"
-   ]
+   ],
+   "outputs": [],
+   "execution_count": 4
   },
   {
    "cell_type": "code",
-   "execution_count": 5,
    "id": "ea3cbd2c-b50b-4ce3-8e98-7ac58c60de76",
-   "metadata": {},
+   "metadata": {
+    "ExecuteTime": {
+     "end_time": "2025-01-01T21:29:51.448015Z",
+     "start_time": "2025-01-01T21:29:51.169670Z"
+    }
+   },
+   "source": [
+    "from kptncook import Settings\n",
+    "\n",
+    "settings = Settings()\n",
+    "client = KptnCookClient(base_url=settings.kptncook_api_url, api_key=settings.kptncook_api_key,\n",
+    "                        access_token=settings.kptncook_access_token)\n",
+    "\n",
+    "all_recipes = client.list_today()\n",
+    "len(all_recipes)"
+   ],
    "outputs": [
     {
      "data": {
@@ -39,51 +63,51 @@
      "output_type": "execute_result"
     }
    ],
-   "source": [
-    "client = KptnCookClient()\n",
-    "all_recipes = client.list_today()\n",
-    "len(all_recipes)"
-   ]
+   "execution_count": 5
   },
   {
    "cell_type": "code",
-   "execution_count": 3,
    "id": "4f439dd5-5ee2-4e2e-afc9-b6e284e7d5e2",
-   "metadata": {},
-   "outputs": [
-    {
-     "name": "stdin",
-     "output_type": "stream",
-     "text": [
-      " ········\n"
-     ]
+   "metadata": {
+    "ExecuteTime": {
+     "end_time": "2025-01-01T21:29:55.743764Z",
+     "start_time": "2025-01-01T21:29:51.455216Z"
     }
-   ],
+   },
    "source": [
     "username = \"jochen-kptncook@wersdoerfer.de\"\n",
     "password = getpass()"
-   ]
+   ],
+   "outputs": [],
+   "execution_count": 6
   },
   {
    "cell_type": "code",
-   "execution_count": 6,
    "id": "701f5cd6-7bfb-4545-8e82-c455397709f4",
-   "metadata": {},
+   "metadata": {
+    "ExecuteTime": {
+     "end_time": "2025-01-01T21:29:55.959152Z",
+     "start_time": "2025-01-01T21:29:55.759Z"
+    }
+   },
+   "source": [
+    "client.get_access_token(username, password)"
+   ],
    "outputs": [
     {
-     "data": {
-      "text/plain": [
-       "'93533997-b764-4fe1-8710-ef6a4a173805'"
-      ]
-     },
-     "execution_count": 6,
-     "metadata": {},
-     "output_type": "execute_result"
+     "ename": "KeyError",
+     "evalue": "'accessToken'",
+     "output_type": "error",
+     "traceback": [
+      "\u001B[0;31m---------------------------------------------------------------------------\u001B[0m",
+      "\u001B[0;31mKeyError\u001B[0m                                  Traceback (most recent call last)",
+      "Cell \u001B[0;32mIn[7], line 1\u001B[0m\n\u001B[0;32m----> 1\u001B[0m \u001B[43mclient\u001B[49m\u001B[38;5;241;43m.\u001B[39;49m\u001B[43mget_access_token\u001B[49m\u001B[43m(\u001B[49m\u001B[43musername\u001B[49m\u001B[43m,\u001B[49m\u001B[43m \u001B[49m\u001B[43mpassword\u001B[49m\u001B[43m)\u001B[49m\n",
+      "File \u001B[0;32m~/repositories/kptncook/kptncook/api.py:89\u001B[0m, in \u001B[0;36mKptnCookClient.get_access_token\u001B[0;34m(self, username, password)\u001B[0m\n\u001B[1;32m     87\u001B[0m response\u001B[38;5;241m.\u001B[39mraise_for_status()\n\u001B[1;32m     88\u001B[0m token_data \u001B[38;5;241m=\u001B[39m response\u001B[38;5;241m.\u001B[39mjson()\n\u001B[0;32m---> 89\u001B[0m \u001B[38;5;28;01mreturn\u001B[39;00m \u001B[43mtoken_data\u001B[49m\u001B[43m[\u001B[49m\u001B[38;5;124;43m\"\u001B[39;49m\u001B[38;5;124;43maccessToken\u001B[39;49m\u001B[38;5;124;43m\"\u001B[39;49m\u001B[43m]\u001B[49m\n",
+      "\u001B[0;31mKeyError\u001B[0m: 'accessToken'"
+     ]
     }
    ],
-   "source": [
-    "client.get_access_token(username, password)"
-   ]
+   "execution_count": 7
   },
   {
    "cell_type": "code",
diff --git a/notebooks/test_new_headers.ipynb b/notebooks/test_new_headers.ipynb
index d27b99e..aa4ae6c 100644
--- a/notebooks/test_new_headers.ipynb
+++ b/notebooks/test_new_headers.ipynb
@@ -23,7 +23,11 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "client = KptnCookClient()"
+    "from kptncook import Settings\n",
+    "\n",
+    "settings = Settings()\n",
+    "client = KptnCookClient(base_url=settings.kptncook_api_url, api_key=settings.kptncook_api_key,\n",
+    "                        access_token=settings.kptncook_access_token)"
    ]
   },
   {