diff --git a/ct/authentik.sh b/ct/authentik.sh
new file mode 100644
index 000000000..ee6a8ffb8
--- /dev/null
+++ b/ct/authentik.sh
@@ -0,0 +1,120 @@
+#!/usr/bin/env bash
+source <(curl -s https://raw.githubusercontent.com/thieneret/ProxmoxVED/feat/authentik/misc/build.func)
+# Copyright (c) 2021-2026 community-scripts ORG
+# Author: Thieneret
+# License: MIT | https://github.com/thieneret/ProxmoxVED/raw/main/LICENSE
+# Source: https://github.com/goauthentik/authentik
+
+APP="authentik"
+var_tags="auth"
+var_cpu="4"
+var_ram="4096"
+var_disk="10"
+var_os="debian"
+var_version="13"
+var_unprivileged="1"
+
+header_info "$APP"
+variables
+color
+catch_errors
+
+function update_script() {
+    header_info
+    check_container_storage
+    check_container_resources
+
+    AUTHENTIK_VERSION="version/2025.12.4"
+    NODE_VERSION="24"
+
+    if [[ ! -d /opt/authentik ]]; then
+        msg_error "No ${APP} Installation Found!"
+        exit
+    fi
+
+    if [[ "$AUTHENTIK_VERSION" == "$(cat /opt/authentik_version.txt)" ]]; then
+        msg_ok "Authentik up-to-date"
+        exit
+    fi
+
+    if check_for_gh_release "geoipupdate" "maxmind/geoipupdate"; then
+        fetch_and_deploy_gh_release "geoipupdate" "maxmind/geoipupdate" "binary"
+    fi
+
+    msg_info "Stopping Services"
+    systemctl stop authentik-server.service
+    systemctl stop authentik-worker.service
+    msg_ok "Stopped Services"
+
+    if check_for_gh_release "xmlsec" "lsh123/xmlsec"; then
+    
+        CLEAN_INSTALL=1 fetch_and_deploy_gh_release "xmlsec" "lsh123/xmlsec" "tarball" "latest" "/opt/xmlsec"
+
+        msg_info "Update xmlsec"
+        cd /opt/xmlsec
+        $STD ./autogen.sh
+        $STD make -j $(nproc)
+        $STD make check
+        $STD make install
+        ldconfig
+        msg_ok "xmlsec updated"
+    fi
+
+    setup_nodejs
+    setup_go
+
+    if check_for_gh_tag "authentik" "goauthentik/authentik" "${AUTHENTIK_VERSION}"; then
+        
+        CLEAN_INSTALL=1 fetch_and_deploy_gh_release "authentik" "goauthentik/authentik" "tag" "${AUTHENTIK_VERSION}" "/opt/authentik"
+        
+        msg_info "Update web"
+        cd /opt/authentik/web
+        NODE_ENV="production"
+        $STD npm install
+        $STD npm run build
+        $STD npm run build:sfe
+        msg_ok "Web updated"
+
+        msg_info "Update go proxy"
+        cd /opt/authentik
+        CGO_ENABLED="1"
+        $STD go mod download
+        $STD go build -o /opt/authentik/authentik-server ./cmd/server
+        msg_ok "Go proxy updated"
+    
+        setup_uv
+
+        setup_rust
+
+        msg_info "Update python server"
+        UV_NO_BINARY_PACKAGE="cryptography lxml python-kadmin-rs xmlsec"
+        UV_COMPILE_BYTECODE="1"
+        UV_LINK_MODE="copy"
+        UV_NATIVE_TLS="1"
+        RUSTUP_PERMIT_COPY_RENAME="true"
+        cd /opt/authentik
+        $STD uv sync --frozen --no-install-project --no-dev
+        msg_ok "Python server updated"
+
+        chown -R authentik:authentik /opt/authentik
+
+        echo "${AUTHENTIK_VERSION}" > /opt/authentik_version.txt
+    fi
+
+    msg_info "Restarting services"
+    systemctl restart authentik-server.service authentik-worker.service
+    msg_ok "Started Service"
+    msg_ok "Updated successfully!"
+    exit
+}
+
+start
+build_container
+description
+
+msg_ok "Completed successfully!\n"
+echo -e "${CREATING}${GN}${APP} setup has been successfully initialized!${CL}"
+echo -e "${INFO}${YW} Initial setup URL:${CL}"
+echo -e "${TAB}${GATEWAY}${BGN}http://${IP}:9000/if/flow/initial-setup/${CL}"
+echo -e "${INFO}${YW} Access it using the following URL:${CL}"
+echo -e "${TAB}${GATEWAY}${BGN}http://${IP}:9000${CL}"
diff --git a/frontend/public/json/authentik.json b/frontend/public/json/authentik.json
new file mode 100644
index 000000000..1e899da7e
--- /dev/null
+++ b/frontend/public/json/authentik.json
@@ -0,0 +1,42 @@
+{
+    "name": "authentik",
+    "slug": "authentik",
+    "categories": [6],
+    "date_created": "2026-02-21",
+    "type": "ct",
+    "updateable": true,
+    "privileged": false,
+    "interface_port": 9000,
+    "documentation": "https://docs.goauthentik.io/",
+    "website": "https://goauthentik.io/",
+    "logo": "https://cdn.jsdelivr.net/gh/selfhst/icons@main/webp/authentik.webp",
+    "config_path": "/etc/authentik/config.yml",
+    "description": "authentik is an IdP (Identity Provider) and SSO (Single Sign On) platform.",
+    "install_methods": [
+        {
+            "type": "default",
+            "script": "ct/authentik.sh",
+            "resources": {
+                "cpu": 4,
+                "ram": 4096,
+                "hdd": 10,
+                "os": "Debian",
+                "version": "13"
+            }
+        }
+    ],
+    "default_credentials": {
+        "username": null,
+        "password": null
+    },
+"notes": [
+    {
+        "text": "You will get a Not Found error if initial setup URL doesn't include the trailing forward slash /. Make sure you use the complete url (http://<your server's IP or hostname>:9000/if/flow/initial-setup/) including the trailing forward slash.",
+        "type": "info"
+    },
+    {
+        "text": "If you want automatic GeoIP updates, create a free account at https://www.maxmind.com/en/geolite2/signup, then edit the /usr/local/etc/GeoIP.conf file with your credentials and remove the # in front of the geoipupdate line in the crontab.",
+        "type": "info"
+    }
+]
+}
\ No newline at end of file
diff --git a/install/authentik-install.sh b/install/authentik-install.sh
new file mode 100644
index 000000000..eee3ad6cf
--- /dev/null
+++ b/install/authentik-install.sh
@@ -0,0 +1,206 @@
+#!/usr/bin/env bash
+
+# Copyright (c) 2021-2026 community-scripts ORG
+# Author: Thieneret
+# License: MIT | https://github.com/thieneret/ProxmoxVED/raw/main/LICENSE
+# Source: https://github.com/goauthentik/authentik
+
+source /dev/stdin <<<"$FUNCTIONS_FILE_PATH"
+
+color
+verb_ip6
+catch_errors
+setting_up_container
+network_check
+update_os
+
+# Installing Dependencies with the 3 core dependencies (curl;sudo;mc)
+msg_info "Installing Dependencies"
+$STD apt install -y \
+  curl \
+  sudo \
+  mc \
+  build-essential \
+  pkg-config \
+  libffi-dev \
+  git \
+  libxslt-dev \
+  zlib1g-dev \
+  libpq-dev \
+  krb5-multidev \
+  libkrb5-dev \
+  heimdal-multidev \
+  libclang-dev \
+  libltdl-dev \
+  libpq5 \
+  libmaxminddb0 \
+  ca-certificates \
+  krb5-multidev \
+  libkrb5-3 \
+  libkdb5-10 \
+  libkadm5clnt-mit12 \
+  libkadm5clnt7t64-heimdal \
+  libltdl7 \
+  libxslt1.1 \
+  python3-dev \
+  wget \
+  gnupg \
+  libxml2-dev \
+  libltdl7 \
+  libxml2 \
+  libxslt1-dev \
+  automake \
+  autoconf \
+  libtool \
+  libtool-bin \
+  gcc
+msg_ok "Installed Dependencies"
+
+AUTHENTIK_VERSION="version/2025.12.4"
+NODE_VERSION="24"
+
+fetch_and_deploy_gh_release "xmlsec" "lsh123/xmlsec" "tarball" "latest" "/opt/xmlsec"
+
+msg_info "Setup xmlsec"
+cd /opt/xmlsec
+$STD ./autogen.sh
+$STD make -j $(nproc)
+$STD make check
+$STD make install
+ldconfig
+msg_ok "xmlsec installed"
+
+setup_nodejs
+setup_go
+
+fetch_and_deploy_gh_release "authentik" "goauthentik/authentik" "tag" "${AUTHENTIK_VERSION}" "/opt/authentik"
+
+msg_info "Setup web"
+cd /opt/authentik/web
+NODE_ENV="production"
+$STD npm install
+$STD npm run build
+$STD npm run build:sfe
+msg_ok "Web installed"
+
+msg_info "Setup go proxy"
+cd /opt/authentik
+CGO_ENABLED="1"
+$STD go mod download
+$STD go build -o /opt/authentik/authentik-server ./cmd/server
+msg_ok "Go proxy installed"
+
+fetch_and_deploy_gh_release "geoipupdate" "maxmind/geoipupdate" "binary"
+
+cat <<EOF >/usr/local/etc/GeoIP.conf
+AccountID ChangeME
+LicenseKey ChangeME
+EditionIDs GeoLite2-ASN GeoLite2-City GeoLite2-Country
+DatabaseDirectory /opt/authentik-data/geoip
+RetryFor 5m
+Parallelism 1
+EOF
+
+cat <<EOF >/tmp/crontab
+#39 19 * * 6,4 /usr/bin/geoipupdate -f /usr/local/etc/GeoIP.conf
+EOF
+crontab /tmp/crontab
+rm /tmp/crontab
+
+setup_uv
+
+setup_rust
+
+msg_info "Setup python server"
+UV_NO_BINARY_PACKAGE="cryptography lxml python-kadmin-rs xmlsec"
+UV_COMPILE_BYTECODE="1"
+UV_LINK_MODE="copy"
+UV_NATIVE_TLS="1"
+RUSTUP_PERMIT_COPY_RENAME="true"
+cd /opt/authentik
+$STD uv sync --frozen --no-install-project --no-dev
+msg_ok "Installed python server"
+
+mkdir -p /opt/authentik-data/{certs,media,geoip,templates}
+cp /opt/authentik/authentik/sources/kerberos/krb5.conf /etc/krb5.conf
+cp -r /usr/share/GeoIP/ /opt/authentik/geoip/
+
+PG_VERSION="16" setup_postgresql
+
+PG_DB_NAME="authentik" PG_DB_USER="authentik" PG_DB_GRANT_SUPERUSER="true" setup_postgresql_db
+
+setup_yq
+
+msg_info "Creating authentik config"
+mkdir -p /etc/authentik
+mv /opt/authentik/authentik/lib/default.yml /etc/authentik/config.yml
+yq -i ".secret_key = \"$(openssl rand -base64 128 | tr -dc 'a-zA-Z0-9' | head -c64)\"" /etc/authentik/config.yml
+yq -i ".postgresql.password = \"${PG_DB_PASS}\"" /etc/authentik/config.yml
+yq -i ".events.context_processors.geoip = \"/opt/authentik-data/geoip/GeoLite2-City.mmdb\"" /etc/authentik/config.yml
+yq -i ".events.context_processors.asn = \"/opt/authentik-data/geoip/GeoLite2-ASN.mmdb\"" /etc/authentik/config.yml
+yq -i ".blueprints_dir = \"/opt/authentik/blueprints\"" /etc/authentik/config.yml
+yq -i ".cert_discovery_dir = \"/opt/authentik-data/certs\"" /etc/authentik/config.yml
+yq -i ".email.template_dir = \"/opt/authentik-data/templates\"" /etc/authentik/config.yml
+yq -i ".storage.file.path = \"/opt/authentik-data\"" /etc/authentik/config.yml
+cp /opt/authentik/tests/GeoLite2-ASN-Test.mmdb /opt/authentik-data/geoip/GeoLite2-ASN.mmdb
+cp /opt/authentik/tests/GeoLite2-City-Test.mmdb /opt/authentik-data/geoip/GeoLite2-City.mmdb
+$STD useradd -U -s /usr/sbin/nologin -r -M -d /opt/authentik authentik
+chown -R authentik:authentik /opt/authentik /opt/authentik-data
+cat <<EOF >/etc/default/authentik
+TMPDIR=/dev/shm/
+UV_LINK_MODE=copy
+UV_PYTHON_DOWNLOADS=0
+UV_NATIVE_TLS=1
+VENV_PATH=/opt/authentik/.venv
+PYTHONDONTWRITEBYTECODE=1
+PYTHONUNBUFFERED=1
+PATH=/opt/authentik/lifecycle:/opt/authentik/.venv/bin:/usr/local/bin:/usr/local/sbin:/usr/sbin:/usr/bin:/sbin:/bin
+DJANGO_SETTINGS_MODULE=authentik.root.settings
+PROMETHEUS_MULTIPROC_DIR="/tmp/authentik_prometheus_tmp"
+EOF
+msg_ok "authentik config created"
+
+msg_info "Creating services"
+cat <<EOF >/etc/systemd/system/authentik-server.service
+[Unit]
+Description=authentik Go Server (API Gateway)
+After=network.target
+Wants=postgresql.service
+
+[Service]
+User=authentik
+Group=authentik
+ExecStartPre=/usr/bin/mkdir -p "\${PROMETHEUS_MULTIPROC_DIR}"
+ExecStart=/opt/authentik/authentik-server
+WorkingDirectory=/opt/authentik/
+Restart=always
+RestartSec=5
+EnvironmentFile=/etc/default/authentik
+
+[Install]
+WantedBy=multi-user.target
+EOF
+
+cat <<EOF >/etc/systemd/system/authentik-worker.service
+[Unit]
+Description=authentik Worker
+After=network.target postgresql.service
+
+[Service]
+User=authentik
+Group=authentik
+Type=simple
+EnvironmentFile=/etc/default/authentik
+ExecStart=/usr/local/bin/uv run python -m manage worker --pid-file /dev/shm/authentik-worker.pid
+WorkingDirectory=/opt/authentik
+Restart=always
+RestartSec=5
+
+[Install]
+WantedBy=multi-user.target
+EOF
+
+systemctl enable -q --now authentik-server.service authentik-worker.service
+msg_ok "Services created"
+
+echo "${AUTHENTIK_VERSION}" > /opt/authentik_version.txt
\ No newline at end of file