diff --git a/misc/build.func b/misc/build.func
index 38587512..e1661b0f 100644
--- a/misc/build.func
+++ b/misc/build.func
@@ -1,6 +1,7 @@
 # Copyright (c) 2021-2025 tteck
 # Author: tteck (tteckster)
 # Co-Author: MickLesk
+# Co-Author: michelroegl-brunner
 # License: MIT
 # https://github.com/community-scripts/ProxmoxVE/raw/main/LICENSE
 
@@ -9,6 +10,7 @@ variables() {
   var_install="${NSAPP}-install"     # sets the var_install variable by appending "-install" to the value of NSAPP.
   INTEGER='^[0-9]+([.][0-9]+)?$'     # it defines the INTEGER regular expression pattern.
   PVEHOST_NAME=$(hostname) # gets the Proxmox Hostname and sets it to Uppercase
+   DIAGNOSTICS="yes" # sets the DIAGNOSTICS variable to "yes", used for the API call.
 }
 
 # This function sets various color variables using ANSI escape codes for formatting text in the terminal.
@@ -789,6 +791,37 @@ advanced_settings() {
   fi
 }
 
+post_to_api() {
+    local API_URL="http://api.community-scripts.org/upload"
+   
+    
+    JSON_PAYLOAD=$(cat <<EOF
+{
+    "ct_type": $CT_TYPE,
+    "disk_size": $DISK_SIZE,
+    "core_count": $CORE_COUNT,
+    "ram_size": $RAM_SIZE,
+    "verbose": "$VERBOSE",
+    "os_type": "$var_os",
+    "os_version": "$var_version",
+    "hn": "$HN",
+    "disableip6": "$DISABLEIP6",
+    "ssh": "$SSH",
+    "tags": "$TAGS",
+    "nsapp": "$NSAPP"
+}
+EOF
+)
+   
+    RESPONSE=$(curl -s -o response.txt -w "%{http_code}" -L -X POST "$API_URL" --post301 --post302 \
+        -H "Content-Type: application/json" \
+        -d "$JSON_PAYLOAD")
+    
+    if [ "$RESPONSE" -ne 201 ] && [ "$RESPONSE" -ne 302 ]; then
+        msg_error "API request failed with HTTP code $RESPONSE"
+    fi
+}
+
 install_script() {
   pve_check
   shell_check
@@ -804,6 +837,11 @@ install_script() {
   timezone=$(cat /etc/timezone)
   header_info
   while true; do
+
+    if ! (whiptail --backtitle "Proxmox VE Helper Scripts" --title "DIAGNOSTICS" --yesno "Send diagnostics to the maintainer? (No User Data!)" 10 58); then
+      DIAGNOSTICS="no"
+    fi
+
     CHOICE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --title "SETTINGS" --menu "Choose an option:" \
       12 50 4 \
       "1" "Default Settings" \
@@ -919,6 +957,9 @@ build_container() {
     FEATURES="nesting=1"
   fi
 
+  if [[ $DIAGNOSTICS == "yes" ]]; then
+    post_to_api
+  fi
 
   TEMP_DIR=$(mktemp -d)
   pushd $TEMP_DIR >/dev/null