diff --git a/matrix/quadlets/matrix-authentication-service b/matrix/quadlets/matrix-authentication-service
new file mode 100644
index 0000000..2fc0d6d
--- /dev/null
+++ b/matrix/quadlets/matrix-authentication-service
@@ -0,0 +1,33 @@
+[Unit]
+Description=Matrix Authentication Service
+
+Requires=matrix-postgres.service
+After=matrix-postgres.service
+
+PartOf=matrix.target
+
+[Container]
+Image=ghcr.io/element-hq/matrix-authentication-service:latest
+ContainerName=matrix-mas
+
+Environment=MAS_CONFIG=/config/config.yaml
+
+AddHost=auth.terrorist.academy:host-gateway
+AddHost=terrorist.academy:host-gateway
+
+Volume=%h/services/matrix/mas/config:/config:ro
+Volume=%h/services/matrix/mas/data:/data
+
+Exec=server
+
+PublishPort=8881:8080
+
+Network=matrix.network
+
+[Service]
+Restart=always
+
+[Install]
+WantedBy=matrix.target
+
+