diff --git a/steam/UserAuth.js b/steam/UserAuth.js
new file mode 100644
index 0000000..79bcf7e
--- /dev/null
+++ b/steam/UserAuth.js
@@ -0,0 +1,57 @@
+module.exports = (function(){
+  "use strict";
+  var Client = require('./Client'),
+      q = require('q'),
+      AuthContainer = require('./containers/Auth');
+
+  function UserAuth() {
+    Client.apply(this, arguments);
+    this.setInterface('ISteamUserAuth');
+  }
+
+  UserAuth.prototype = Object.create(Client.prototype);
+  UserAuth.prototype.constructor = UserAuth;
+
+  UserAuth.prototype.AuthenticateUserTicket = function AuthenticateUserTicket(appId, sessionTicket) {
+    var deferred = q.defer(),
+        args,
+        client,
+        authStatus;
+
+    this.setMethod('AuthenticateUserTicket');
+    this.setVersion(1);
+
+    if(!appId || !Number.isSafeInteger(appId))
+    {
+        deferred.reject(new Error("Invalid appId"));
+    }
+    if(!sessionTicket)
+    {
+        deferred.reject(new Error("Invalid sessionTicket"));
+    }
+
+    args = {
+      'appid': appId,
+      'ticket': sessionTicket
+    };
+
+    client = this.setupClient(args);
+
+    client.then(function(result){
+        if(result.data.response.error != null && result.data.response.error != null) {
+            deferred.reject(result.data.response);
+        }
+        else {
+            var auth = new AuthContainer(result.data.response.params);
+            deferred.resolve(auth);
+        }
+    })
+    .catch(function(result){
+      deferred.reject(result);
+    });
+
+    return deferred.promise;
+  };
+
+  return UserAuth;
+})();
diff --git a/steam/api.js b/steam/api.js
index 48cfadd..56f52f2 100644
--- a/steam/api.js
+++ b/steam/api.js
@@ -7,6 +7,7 @@ mixin(exports, {
   News: require('./News'),
   App: require('./App'),
   User: require('./User'),
+  UserAuth: require('./UserAuth'),
   Player: require('./Player'),
   UserStats: require('./User/Stats'),
   Community: require('./Community'),
diff --git a/steam/containers/Auth.js b/steam/containers/Auth.js
new file mode 100644
index 0000000..cfabdc1
--- /dev/null
+++ b/steam/containers/Auth.js
@@ -0,0 +1,13 @@
+module.exports = (function(undefined){
+  "use strict";
+
+  function Auth(auth) {
+    this.result          = auth.result;
+    this.steamid         = auth.steamid;
+    this.ownersteamid    = auth.ownersteamid;
+    this.vacbanned       = auth.vacbanned;
+    this.publisherbanned = auth.publisherbanned;
+  }
+
+  return Auth;
+})();