diff --git a/docs/openapi.json b/docs/openapi.json
index bb676856..ce1054b4 100644
--- a/docs/openapi.json
+++ b/docs/openapi.json
@@ -1067,10 +1067,70 @@
       }
     },
     "/authentication/token": {
+      "get": {
+        "tags": [
+          "Authentication"
+        ],
+        "summary": "Get authentication data",
+        "description": "Get information about the authenticated user.",
+        "parameters": [
+          {
+            "in": "header",
+            "name": "X-Auth-Token",
+            "schema": {
+              "type": "string"
+            },
+            "required": true
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "OK",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "type": "object",
+                  "properties": {
+                    "user": {
+                      "type": "object",
+                      "properties": {
+                        "name": {
+                          "type": "string",
+                          "description": "The name of the user"
+                        },
+                        "userId": {
+                          "type": "integer",
+                          "description": "The id of the user"
+                        },
+                        "isAdmin": {
+                          "type": "boolean",
+                          "description": "True if user is an admin, false if not."
+                        }
+                      }
+                    }
+                  }
+                }
+              }
+            }
+          },
+          "400": {
+            "$ref": "#/components/responses/400"
+          },
+          "401": {
+            "$ref": "#/components/responses/401"
+          }
+        },
+        "security": [
+          {
+            "token": []
+          }
+        ]
+      },
       "post": {
         "tags": [
           "Authentication"
         ],
+        "summary": "Create authentication token",
         "description": "Create an authentication token via email, password and optionally TOTP code. Add the token as X-Auth-Token header to further requests. Token lifetime 1d default, 30d with rememberMe.",
         "parameters": [
           {
@@ -1131,13 +1191,26 @@
                 "schema": {
                   "type": "object",
                   "properties": {
-                    "userId": {
-                      "type": "integer",
-                      "description": "The id of the authenticated user."
-                    },
-                    "token": {
+                    "authToken": {
                       "type": "string",
                       "description": "The authentication token to be used in future requests."
+                    },
+                    "user": {
+                      "type": "object",
+                      "properties": {
+                        "name": {
+                          "type": "string",
+                          "description": "The username of the user"
+                        },
+                        "userId": {
+                          "type": "integer",
+                          "description": "The ID of the authenticated user"
+                        },
+                        "isAdmin": {
+                          "type": "boolean",
+                          "description": "True if the user is an admin, False if the user isn't."
+                        }
+                      }
                     }
                   }
                 }
@@ -1156,6 +1229,7 @@
         "tags": [
           "Authentication"
         ],
+        "summary": "Delete authentication token",
         "description": "Delete the authentication token provided in the X-Auth-Token header value.",
         "parameters": [
           {
@@ -1399,11 +1473,6 @@
         "type": "apiKey",
         "name": "X-Auth-Token",
         "in": "header"
-      },
-      "cookie": {
-        "type": "apiKey",
-        "name": "id",
-        "in": "cookie"
       }
     }
   }
diff --git a/settings/phpcs.xml b/settings/phpcs.xml
index 558074bc..edcebc3e 100644
--- a/settings/phpcs.xml
+++ b/settings/phpcs.xml
@@ -18,7 +18,11 @@
     <rule ref="Generic.Commenting.Fixme"/>
     <rule ref="Generic.ControlStructures.InlineControlStructure"/>
     <rule ref="Generic.Files.ByteOrderMark"/>
-    <rule ref="Generic.Files.LineEndings"/>
+    <rule ref="Generic.Files.LineEndings">
+        <rule ref="Generic.Files.LineEndings">
+            <exclude name="Generic.Files.LineEndings.InvalidEOLChar"/>
+        </rule>
+    </rule>
     <rule ref="Generic.Formatting.DisallowMultipleStatements"/>
     <rule ref="Generic.Formatting.NoSpaceAfterCast"/>
     <rule ref="Generic.Functions.FunctionCallArgumentSpacing"/>
diff --git a/settings/routes.php b/settings/routes.php
index 90801d6c..9f0d58aa 100644
--- a/settings/routes.php
+++ b/settings/routes.php
@@ -202,6 +202,7 @@ function addApiRoutes(RouterService $routerService, FastRoute\RouteCollector $ro
     $routes->add('GET', '/openapi', [Api\OpenApiController::class, 'getSchema']);
     $routes->add('POST', '/authentication/token', [Api\AuthenticationController::class, 'createToken']);
     $routes->add('DELETE', '/authentication/token', [Api\AuthenticationController::class, 'destroyToken']);
+    $routes->add('GET', '/authentication/token', [Api\AuthenticationController::class, 'getTokenData']);
 
     $routeUserHistory = '/users/{username:[a-zA-Z0-9]+}/history/movies';
     $routes->add('GET', $routeUserHistory, [Api\HistoryController::class, 'getHistory'], [Api\Middleware\IsAuthorizedToReadUserData::class]);
diff --git a/src/Domain/User/Service/Authentication.php b/src/Domain/User/Service/Authentication.php
index 4eb2c3bf..0d03aeb8 100644
--- a/src/Domain/User/Service/Authentication.php
+++ b/src/Domain/User/Service/Authentication.php
@@ -98,14 +98,19 @@ public function getCurrentUserId() : int
         return $userId;
     }
 
-    public function getToken() : ?string
+    public function getToken(Request $request) : ?string
     {
-        return $_COOKIE[self::AUTHENTICATION_COOKIE_NAME];
+        $tokenInCookie = filter_input(INPUT_COOKIE, self::AUTHENTICATION_COOKIE_NAME);
+        if ($tokenInCookie !== false && $tokenInCookie !== null) {
+            return $tokenInCookie;
+        }
+
+        return $request->getHeaders()['X-Auth-Token'] ?? null;
     }
 
     public function getUserIdByApiToken(Request $request) : ?int
     {
-        $apiToken = $request->getHeaders()['X-Auth-Token'] ?? filter_input(INPUT_COOKIE, self::AUTHENTICATION_COOKIE_NAME) ?? null;
+        $apiToken = $this->getToken($request);
         if ($apiToken === null) {
             return null;
         }
@@ -117,7 +122,7 @@ public function isUserAuthenticatedWithCookie() : bool
     {
         $token = filter_input(INPUT_COOKIE, self::AUTHENTICATION_COOKIE_NAME);
 
-        if (empty($token) === false && $this->isValidToken((string)$token) === true) {
+        if (empty($token) === false && $this->isValidAuthToken((string)$token) === true) {
             return true;
         }
 
@@ -159,7 +164,7 @@ public function isUserPageVisibleForCurrentUser(int $privacyLevel, int $userId)
         return $this->isUserAuthenticatedWithCookie() === true && $this->getCurrentUserId() === $userId;
     }
 
-    public function isValidToken(string $token) : bool
+    public function isValidAuthToken(string $token) : bool
     {
         $tokenExpirationDate = $this->repository->findAuthTokenExpirationDate($token);
 
diff --git a/src/HttpController/Api/AuthenticationController.php b/src/HttpController/Api/AuthenticationController.php
index f1687c0c..f2c76057 100644
--- a/src/HttpController/Api/AuthenticationController.php
+++ b/src/HttpController/Api/AuthenticationController.php
@@ -16,6 +16,7 @@ class AuthenticationController
 {
     public function __construct(
         private readonly Authentication $authenticationService,
+        private readonly UserApi $userApi,
     ) {
     }
 
@@ -85,8 +86,12 @@ public function createToken(Request $request) : Response
 
         return Response::createJson(
             Json::encode([
-                'userId' => $userAndAuthToken['user']->getId(),
-                'authToken' => $userAndAuthToken['token']
+                'authToken' => $userAndAuthToken['token'],
+                'user' => [
+                    'id' => $userAndAuthToken['user']->getId(),
+                    'name' => $userAndAuthToken['user']->getName(),
+                    'isAdmin' => $userAndAuthToken['user']->isAdmin(),
+                ]
             ]),
         );
     }
@@ -99,12 +104,12 @@ public function destroyToken(Request $request) : Response
             return Response::CreateNoContent();
         }
 
-        $apiToken = $request->getHeaders()['X-Auth-Token'] ?? null;
+        $apiToken = $this->authenticationService->getToken($request);
         if ($apiToken === null) {
             return Response::createBadRequest(
                 Json::encode([
                     'error' => 'MissingAuthToken',
-                    'message' => 'Authentication token to delete in headers missing'
+                    'message' => 'Authentication token header is missing'
                 ]),
                 [Header::createContentTypeJson()],
             );
@@ -114,4 +119,37 @@ public function destroyToken(Request $request) : Response
 
         return Response::CreateNoContent();
     }
+
+    public function getTokenData(Request $request) : Response
+    {
+        $token = $this->authenticationService->getToken($request);
+        if ($token === null) {
+            return Response::createBadRequest(
+                Json::encode([
+                    'error' => 'MissingAuthToken',
+                    'message' => 'Authentication token header is missing'
+                ]),
+                [Header::createContentTypeJson()],
+            );
+        }
+
+        $user = $this->userApi->findByToken($token);
+        if ($user === null) {
+            return Response::createUnauthorized();
+        }
+
+        if($this->authenticationService->isUserAuthenticatedWithCookie() && $this->authenticationService->isValidAuthToken($token) === false) {
+            return Response::createUnauthorized();
+        }
+
+        return Response::createJson(
+            Json::encode([
+                'user' => [
+                    'id' => $user->getId(),
+                    'name' => $user->getName(),
+                    'isAdmin' => $user->isAdmin(),
+                ]
+            ]),
+        );
+    }
 }
diff --git a/tests/rest/api/authentication.assert.http b/tests/rest/api/authentication.assert.http
index 96c5fcf4..d056dbc7 100644
--- a/tests/rest/api/authentication.assert.http
+++ b/tests/rest/api/authentication.assert.http
@@ -54,8 +54,10 @@ X-Movary-Client: RestAPI Test
         client.assert(response.status === expected, "Expected status code: " + expected);
     });
     client.test("Response has correct body", function() {
-        client.assert(response.body.hasOwnProperty("'userId'") === false, "Response body missing property: userId");
-        client.assert(response.body.hasOwnProperty("'authToken'") === false, "Response body missing property: authToken");
+        client.assert(response.body.hasOwnProperty("authToken") === true, "Response body missing property: authToken");
+        client.assert(response.body.user.hasOwnProperty("id") === true, "Response body missing property: user.id");
+        client.assert(response.body.user.hasOwnProperty("name") === true, "Response body missing property: user.name");
+        client.assert(response.body.user.hasOwnProperty("isAdmin") === true, "Response body missing property: user.isAdmin");
     });
 
     client.global.set("responseAuthToken", response.body.authToken);
@@ -63,6 +65,26 @@ X-Movary-Client: RestAPI Test
 
 ###
 
+GET http://127.0.0.1/api/authentication/token
+Accept: */*
+Cache-Control: no-cache
+Content-Type: application/json
+X-Auth-Token: {{responseAuthToken}}
+
+> {%
+    client.test("Response has correct status code", function() {
+        let expected = 200
+        client.assert(response.status === expected, "Expected status code: " + expected);
+    });
+    client.test("Response has correct body", function() {
+        client.assert(response.body.user.hasOwnProperty("id") === true, "Response body missing property: user.id");
+        client.assert(response.body.user.hasOwnProperty("name") === true, "Response body missing property: user.name");
+        client.assert(response.body.user.hasOwnProperty("isAdmin") === true, "Response body missing property: user.isAdmin");
+    });
+%}
+
+###
+
 DELETE http://127.0.0.1/api/authentication/token
 Accept: */*
 Cache-Control: no-cache
@@ -78,6 +100,38 @@ X-Auth-Token: {{responseAuthToken}}
 
 ###
 
+GET http://127.0.0.1/api/authentication/token
+Accept: */*
+Cache-Control: no-cache
+Content-Type: application/json
+X-Auth-Token: {{responseAuthToken}}
+
+> {%
+    client.test("Response has correct status code", function() {
+        let expected = 401
+        client.assert(response.status === expected, "Expected status code: " + expected);
+    });
+%}
+
+###
+
+GET http://127.0.0.1/api/authentication/token
+Accept: */*
+Cache-Control: no-cache
+Content-Type: application/json
+
+> {%
+    client.test("Response has correct status code", function() {
+        let expectedStatusCode = 400
+        let expectedError = "MissingAuthToken";
+        client.assert(response.status === expectedStatusCode, "Expected status code: " + expectedStatusCode);
+        client.assert(response.body.error === expectedError, "Expected error: " + expectedError);
+        client.assert(response.body.message === 'Authentication token header is missing');
+    });
+%}
+
+###
+
 DELETE http://127.0.0.1/api/authentication/token
 Accept: */*
 Cache-Control: no-cache
@@ -89,7 +143,7 @@ Content-Type: application/json
         client.assert(response.status === expected, "Expected status code: " + expected);
     });
     client.test("Response has correct body", function() {
-        let expected = '{"error":"MissingAuthToken","message":"Authentication token to delete in headers missing"}';
+        let expected = '{"error":"MissingAuthToken","message":"Authentication token header is missing"}';
         client.assert(JSON.stringify(response.body) === expected, "Expected response body: " + expected);
     });
 %}
diff --git a/tests/rest/api/authentication.http b/tests/rest/api/authentication.http
index 9e2d2a5e..324ccbab 100644
--- a/tests/rest/api/authentication.http
+++ b/tests/rest/api/authentication.http
@@ -8,6 +8,14 @@ X-Movary-Client: RestAPI Test
 
 ###
 
+GET http://127.0.0.1/api/authentication/token
+Accept: */*
+Cache-Control: no-cache
+Content-Type: application/json
+X-Auth-Token: {{xAuthToken}}
+
+###
+
 DELETE http://127.0.0.1/api/authentication/token
 Accept: */*
 Cache-Control: no-cache