diff --git a/FLOWISE_SETUP.md b/FLOWISE_SETUP.md
index 83ef84a..e340b20 100644
--- a/FLOWISE_SETUP.md
+++ b/FLOWISE_SETUP.md
@@ -182,8 +182,68 @@ pct exec <CTID> -- docker logs flowise
 pct exec <CTID> -- docker logs flowise-postgres
 ```
 
+## Account Setup Script
+
+Nach der Installation muss der Administrator-Account über die Web-UI oder das Script erstellt werden.
+
+### Verwendung
+
+```bash
+# Account erstellen
+bash setup_flowise_account.sh \
+  --url https://fw-1768829679.userman.de \
+  --name "Admin User" \
+  --email admin@example.com \
+  --password "SecurePass1!"
+
+# Mit Debug-Ausgabe
+bash setup_flowise_account.sh --debug \
+  --url https://fw-1768829679.userman.de \
+  --name "Admin User" \
+  --email admin@example.com \
+  --password "SecurePass1!"
+```
+
+### Parameter
+
+| Parameter | Beschreibung | Erforderlich |
+|-----------|--------------|--------------|
+| `--url <url>` | Flowise Base-URL | Ja |
+| `--name <name>` | Administrator-Anzeigename | Ja |
+| `--email <email>` | Administrator-E-Mail (Login) | Ja |
+| `--password <pass>` | Administrator-Passwort | Ja |
+| `--debug` | Debug-Modus aktivieren | Nein |
+
+### Passwort-Anforderungen
+
+- Mindestens 8 Zeichen
+- Mindestens ein Kleinbuchstabe
+- Mindestens ein Großbuchstabe
+- Mindestens eine Ziffer
+- Mindestens ein Sonderzeichen
+
+### Ausgabe
+
+```json
+{
+  "success": true,
+  "url": "https://fw-1768829679.userman.de",
+  "email": "admin@example.com",
+  "name": "Admin User",
+  "message": "Account created successfully"
+}
+```
+
 ## Versionsverlauf
 
+### install_flowise.sh
+
+| Version | Änderungen |
+|---------|------------|
+| 1.0.0 | Initiale Version |
+
+### setup_flowise_account.sh
+
 | Version | Änderungen |
 |---------|------------|
 | 1.0.0 | Initiale Version |
diff --git a/setup_flowise_account.sh b/setup_flowise_account.sh
new file mode 100644
index 0000000..ec17ad6
--- /dev/null
+++ b/setup_flowise_account.sh
@@ -0,0 +1,254 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+
+# =============================================================================
+# Flowise Account Setup Script
+# =============================================================================
+# Erstellt den Administrator-Account für eine neue Flowise-Instanz
+# über die Flowise API (/api/v1/organization/setup)
+# =============================================================================
+
+SCRIPT_VERSION="1.0.0"
+
+# Debug mode: 0 = nur JSON, 1 = Logs auf stderr
+DEBUG="${DEBUG:-0}"
+export DEBUG
+
+# Logging functions
+log_ts() { date "+[%F %T]"; }
+info() { [[ "$DEBUG" == "1" ]] && echo "$(log_ts) INFO: $*" >&2; return 0; }
+warn() { [[ "$DEBUG" == "1" ]] && echo "$(log_ts) WARN: $*" >&2; return 0; }
+die() {
+  if [[ "$DEBUG" == "1" ]]; then
+    echo "$(log_ts) ERROR: $*" >&2
+  else
+    echo "{\"error\": \"$*\"}"
+  fi
+  exit 1
+}
+
+# =============================================================================
+# Usage
+# =============================================================================
+usage() {
+  cat >&2 <<'EOF'
+Usage:
+  bash setup_flowise_account.sh [options]
+
+Required options:
+  --url <url>                 Flowise base URL (e.g., https://fw-1768829679.userman.de)
+  --name <name>               Administrator display name
+  --email <email>             Administrator email (used as login)
+  --password <password>       Administrator password (8+ chars, upper, lower, digit, special)
+
+Optional:
+  --debug                     Enable debug mode (show logs on stderr)
+  --help                      Show this help
+
+Password requirements:
+  - At least 8 characters
+  - At least one lowercase letter
+  - At least one uppercase letter
+  - At least one digit
+  - At least one special character
+
+Examples:
+  # Setup account:
+  bash setup_flowise_account.sh \
+    --url https://fw-1768829679.userman.de \
+    --name "Admin User" \
+    --email admin@example.com \
+    --password "SecurePass1!"
+
+  # With debug output:
+  bash setup_flowise_account.sh --debug \
+    --url https://fw-1768829679.userman.de \
+    --name "Admin User" \
+    --email admin@example.com \
+    --password "SecurePass1!"
+EOF
+}
+
+# =============================================================================
+# Default values
+# =============================================================================
+FLOWISE_URL=""
+ADMIN_NAME=""
+ADMIN_EMAIL=""
+ADMIN_PASSWORD=""
+
+# =============================================================================
+# Argument parsing
+# =============================================================================
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    --url) FLOWISE_URL="${2:-}"; shift 2 ;;
+    --name) ADMIN_NAME="${2:-}"; shift 2 ;;
+    --email) ADMIN_EMAIL="${2:-}"; shift 2 ;;
+    --password) ADMIN_PASSWORD="${2:-}"; shift 2 ;;
+    --debug) DEBUG="1"; export DEBUG; shift 1 ;;
+    --help|-h) usage; exit 0 ;;
+    *) die "Unknown option: $1 (use --help)" ;;
+  esac
+done
+
+# =============================================================================
+# Validation
+# =============================================================================
+[[ -n "$FLOWISE_URL" ]] || die "--url is required"
+[[ -n "$ADMIN_NAME" ]] || die "--name is required"
+[[ -n "$ADMIN_EMAIL" ]] || die "--email is required"
+[[ -n "$ADMIN_PASSWORD" ]] || die "--password is required"
+
+# Validate email format
+[[ "$ADMIN_EMAIL" =~ ^[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,}$ ]] || die "Invalid email format: $ADMIN_EMAIL"
+
+# Validate password policy (Flowise requirements)
+validate_password() {
+  local p="$1"
+  [[ ${#p} -ge 8 ]] || return 1
+  [[ "$p" =~ [a-z] ]] || return 1
+  [[ "$p" =~ [A-Z] ]] || return 1
+  [[ "$p" =~ [0-9] ]] || return 1
+  [[ "$p" =~ [^a-zA-Z0-9] ]] || return 1
+  return 0
+}
+
+validate_password "$ADMIN_PASSWORD" || die "Password does not meet requirements: 8+ chars, lowercase, uppercase, digit, special character"
+
+# Remove trailing slash from URL
+FLOWISE_URL="${FLOWISE_URL%/}"
+
+info "Script Version: ${SCRIPT_VERSION}"
+info "Configuration:"
+info "  URL: ${FLOWISE_URL}"
+info "  Name: ${ADMIN_NAME}"
+info "  Email: ${ADMIN_EMAIL}"
+info "  Password: ********"
+
+# =============================================================================
+# Check if Flowise is reachable
+# =============================================================================
+info "Checking if Flowise is reachable..."
+
+# Try to reach the organization-setup page
+HTTP_CODE=$(curl -s -o /dev/null -w "%{http_code}" -k "${FLOWISE_URL}/organization-setup" 2>/dev/null || echo "000")
+
+if [[ "$HTTP_CODE" == "000" ]]; then
+  die "Cannot connect to Flowise at ${FLOWISE_URL}"
+elif [[ "$HTTP_CODE" == "404" ]]; then
+  warn "Organization setup page not found (404). Account may already exist."
+fi
+
+info "Flowise is reachable (HTTP ${HTTP_CODE})"
+
+# =============================================================================
+# Create Account via API
+# =============================================================================
+info "Creating administrator account..."
+
+# Prepare JSON payload
+# Note: Flowise expects specific field names
+JSON_PAYLOAD=$(cat <<EOF
+{
+  "name": "${ADMIN_NAME}",
+  "email": "${ADMIN_EMAIL}",
+  "password": "${ADMIN_PASSWORD}"
+}
+EOF
+)
+
+info "Sending request to ${FLOWISE_URL}/api/v1/organization/setup"
+
+# Make API request
+RESPONSE=$(curl -s -k -X POST \
+  -H "Content-Type: application/json" \
+  -d "${JSON_PAYLOAD}" \
+  -w "\n%{http_code}" \
+  "${FLOWISE_URL}/api/v1/organization/setup" 2>&1)
+
+# Extract HTTP code from last line
+HTTP_CODE=$(echo "$RESPONSE" | tail -n1)
+RESPONSE_BODY=$(echo "$RESPONSE" | sed '$d')
+
+info "HTTP Response Code: ${HTTP_CODE}"
+info "Response Body: ${RESPONSE_BODY}"
+
+# =============================================================================
+# Handle Response
+# =============================================================================
+if [[ "$HTTP_CODE" == "200" || "$HTTP_CODE" == "201" ]]; then
+  info "Account created successfully!"
+  
+  # Output result as JSON
+  if [[ "$DEBUG" == "1" ]]; then
+    cat <<EOF
+{
+  "success": true,
+  "url": "${FLOWISE_URL}",
+  "email": "${ADMIN_EMAIL}",
+  "name": "${ADMIN_NAME}",
+  "message": "Account created successfully"
+}
+EOF
+  else
+    echo "{\"success\":true,\"url\":\"${FLOWISE_URL}\",\"email\":\"${ADMIN_EMAIL}\",\"name\":\"${ADMIN_NAME}\",\"message\":\"Account created successfully\"}"
+  fi
+  
+elif [[ "$HTTP_CODE" == "400" ]]; then
+  # Check if account already exists
+  if echo "$RESPONSE_BODY" | grep -qi "already exists\|already setup\|already registered"; then
+    warn "Account may already exist"
+    if [[ "$DEBUG" == "1" ]]; then
+      cat <<EOF
+{
+  "success": false,
+  "url": "${FLOWISE_URL}",
+  "email": "${ADMIN_EMAIL}",
+  "error": "Account already exists",
+  "response": ${RESPONSE_BODY}
+}
+EOF
+    else
+      echo "{\"success\":false,\"url\":\"${FLOWISE_URL}\",\"email\":\"${ADMIN_EMAIL}\",\"error\":\"Account already exists\"}"
+    fi
+    exit 1
+  else
+    die "Bad request (400): ${RESPONSE_BODY}"
+  fi
+  
+elif [[ "$HTTP_CODE" == "404" ]]; then
+  # Try alternative endpoints
+  info "Trying alternative endpoint /api/v1/signup..."
+  
+  RESPONSE=$(curl -s -k -X POST \
+    -H "Content-Type: application/json" \
+    -d "${JSON_PAYLOAD}" \
+    -w "\n%{http_code}" \
+    "${FLOWISE_URL}/api/v1/signup" 2>&1)
+  
+  HTTP_CODE=$(echo "$RESPONSE" | tail -n1)
+  RESPONSE_BODY=$(echo "$RESPONSE" | sed '$d')
+  
+  if [[ "$HTTP_CODE" == "200" || "$HTTP_CODE" == "201" ]]; then
+    info "Account created successfully via /api/v1/signup!"
+    if [[ "$DEBUG" == "1" ]]; then
+      cat <<EOF
+{
+  "success": true,
+  "url": "${FLOWISE_URL}",
+  "email": "${ADMIN_EMAIL}",
+  "name": "${ADMIN_NAME}",
+  "message": "Account created successfully"
+}
+EOF
+    else
+      echo "{\"success\":true,\"url\":\"${FLOWISE_URL}\",\"email\":\"${ADMIN_EMAIL}\",\"name\":\"${ADMIN_NAME}\",\"message\":\"Account created successfully\"}"
+    fi
+  else
+    die "API endpoint not found. Tried /api/v1/organization/setup and /api/v1/signup. Response: ${RESPONSE_BODY}"
+  fi
+  
+else
+  die "Unexpected response (HTTP ${HTTP_CODE}): ${RESPONSE_BODY}"
+fi