diff --git a/source/api/actions/session_status.ts b/source/api/actions/session_status.ts
new file mode 100644
index 0000000..876979c
--- /dev/null
+++ b/source/api/actions/session_status.ts
@@ -0,0 +1,80 @@
+/*
+This file is part of »zeitbild«.
+
+Copyright 2025 'kcf' <fenris@folksprak.org>
+
+»zeitbild« is free software: you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+»zeitbild« is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with »zeitbild«. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+namespace _zeitbild.api
+{
+	
+	/**
+	 */
+	export function register_session_status(
+		rest_subject : lib_plankton.rest_http.type_rest
+	) : void
+	{
+		register<
+			null,
+			{
+				logged_in : boolean;
+			}
+		>(
+			rest_subject,
+			lib_plankton.http.enum_method.get,
+			"/session/status",
+			{
+				"description": "gibt Information über den Nutzer aus",
+				"output_schema": () => ({
+					"nullable": false,
+					"type": "object",
+					"additionalProperties": false,
+					"properties": {
+						"logged_in": {
+							"nullable": false,
+							"type": "boolean",
+						},
+					},
+					"required": [
+						"logged_in",
+					],
+				}),
+				"restriction": restriction_none,
+				"execution": async (stuff) => {
+					const user_id : (null | _zeitbild.type_user_id) = await (
+						session_from_stuff(stuff)
+						.then(
+							(session : {key : string; value : lib_plankton.session.type_session;}) => (
+								_zeitbild.service.user.identify(session.value.name)
+								.catch(x => Promise.resolve(null))
+							)
+						)
+						.catch(x => Promise.resolve(null))
+					);
+					return Promise.resolve(
+						{
+							"status_code": 200,
+							"data": {
+								"logged_in": (user_id !== null),
+							}
+						}
+					);
+				}
+			}
+		);
+	}
+	
+}
diff --git a/source/api/functions.ts b/source/api/functions.ts
index bea3786..c295f09 100644
--- a/source/api/functions.ts
+++ b/source/api/functions.ts
@@ -49,6 +49,7 @@ namespace _zeitbild.api
 			_zeitbild.api.register_session_begin(rest_subject);
 			_zeitbild.api.register_session_end(rest_subject);
 			_zeitbild.api.register_session_oidc(rest_subject);
+			_zeitbild.api.register_session_status(rest_subject);
 		}
 		// user
 		{
diff --git a/tools/makefile b/tools/makefile
index b175eba..ce88995 100644
--- a/tools/makefile
+++ b/tools/makefile
@@ -64,6 +64,7 @@ ${dir_temp}/zeitbild-unlinked.js: \
 		${dir_source}/api/actions/session_begin.ts \
 		${dir_source}/api/actions/session_oidc.ts \
 		${dir_source}/api/actions/session_end.ts \
+		${dir_source}/api/actions/session_status.ts \
 		${dir_source}/api/actions/users.ts \
 		${dir_source}/api/actions/user_dav_conf.ts \
 		${dir_source}/api/actions/user_dav_token.ts \