diff --git a/src/Controllers/Common/AuthenticationController.cs b/src/Controllers/Common/AuthenticationController.cs
index 9fecc4d..494e7e2 100644
--- a/src/Controllers/Common/AuthenticationController.cs
+++ b/src/Controllers/Common/AuthenticationController.cs
@@ -212,4 +212,19 @@ public class AuthenticationController : Controller {
 
         return Ok(MembershipUserStatus.Success);
     }
+
+    [HttpPost]
+    [Produces("application/xml")]
+    [Route("Authentication/MMOAuthentication")]
+    public IActionResult MMOAuthentication([FromForm] Guid token) {
+        AuthenticationInfo info = new();
+        info.Authenticated = false;
+        var session = ctx.Sessions.FirstOrDefault(x => x.ApiToken == token);
+        if (session != null) {
+            info.Authenticated = true;
+            info.DisplayName = session.Viking.Name;
+            info.Role = Role.User;
+        }
+        return Ok(info);
+    }
 }
diff --git a/src/Schema/AuthenticationInfo.cs b/src/Schema/AuthenticationInfo.cs
new file mode 100644
index 0000000..876b3a4
--- /dev/null
+++ b/src/Schema/AuthenticationInfo.cs
@@ -0,0 +1,19 @@
+using System.Xml.Serialization;
+namespace sodoff.Schema;
+
+[Serializable]
+public class AuthenticationInfo {
+    [XmlElement]
+    public bool Authenticated { get; set; }
+
+    [XmlElement]
+    public string DisplayName { get; set; } = string.Empty;
+
+    [XmlElement]
+    public Role Role { get; set; } = Role.User;
+}
+
+[Serializable]
+public enum Role {
+    User, Admin, Moderator
+}