diff --git a/README.md b/README.md
index 8f5708c20..0e8ca78c5 100755
--- a/README.md
+++ b/README.md
@@ -116,6 +116,7 @@ List of Definitions
 * [Handlebars](http://handlebarsjs.com/) (by [Boris Yankov](https://github.com/borisyankov))
 * [HashSet](http://www.timdown.co.uk/jshashtable/jshashset.html) (by [Sergey Gerasimov](https://github.com/gerich-home))
 * [Hashtable](http://www.timdown.co.uk/jshashtable/) (by [Sergey Gerasimov](https://github.com/gerich-home))
+* [HelloJS](http://adodson.com/hello.js) (by [Pavel Zika](https://github.com/PavelPZ))
 * [Highcharts](http://www.highcharts.com/) (by [damianog](https://github.com/damianog))
 * [Highland](http://highlandjs.org/) (by [Bart van der Schoor](https://github.com/Bartvds/))
 * [highlight.js](https://github.com/isagalaev/highlight.js) (by [Niklas Mollenhauer](https://github.com/nikeee))
diff --git a/hellojs/hellojs-test.ts b/hellojs/hellojs-test.ts
new file mode 100644
index 000000000..ef0508867
--- /dev/null
+++ b/hellojs/hellojs-test.ts
@@ -0,0 +1,32 @@
+/// <reference path="hellojs.d.ts" />
+
+hello.init(
+  {
+    'facebook': '<app key>',
+  },
+  {
+    redirect_uri: 'hello.html',
+    display: 'page',
+  }
+  );
+
+hello('facebook').login();
+
+hello('facebook').logout();
+
+hello.on('auth.login', auth => {
+  alert('log to ' + auth.network)
+}).on('auth.logout', auth => {
+    alert('unlog from ' + auth.network)
+  });
+
+hello.getAuthResponse('facebook');
+
+hello.login('facebook', null, () => {
+  var req = hello.getAuthResponse('facebook');
+});
+
+hello.logout('facebook');
+
+var serviceInfo = hello.service('facebook');
+
diff --git a/hellojs/hellojs.d.ts b/hellojs/hellojs.d.ts
new file mode 100644
index 000000000..a95b80a93
--- /dev/null
+++ b/hellojs/hellojs.d.ts
@@ -0,0 +1,67 @@
+// Type definitions for hello.js 0.2.1 
+// Project: http://adodson.com/hello.js/
+// Definitions by: Pavel Zika <https://github.com/PavelPZ>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+interface HelloJSLoginOptions {
+  redirect_uri?: string;
+  display?: string;
+  scope?: string;
+  response_type?: string;
+  force?: boolean;
+  oauth_proxy?: string;
+  timeout?: number;
+  default_service?: string;
+}
+
+interface HelloJSEventArgument {
+  network: string;
+  authResponse?: any;
+}
+
+interface HelloJSStatic {
+  init(serviceAppIds: { [id: string]: string; }, defaultOptions?: HelloJSLoginOptions):void;
+  login(network: string, option?: HelloJSLoginOptions, callback?: () => void): void;
+  logout(network: string, callback?: () => void): void;
+  on(eventName: string, event: (auth: HelloJSEventArgument) => void): HelloJSStatic;
+  off(eventName: string, event: (auth: HelloJSEventArgument) => void): HelloJSStatic;
+  getAuthResponse(network: string): any;
+  service(network: string): HelloJSServiceDef;
+  settings: HelloJSLoginOptions;
+  (network: string): HelloJSStaticNamed;
+  init(servicesDef: { [id: string]: HelloJSServiceDef; }): void;
+}
+
+interface HelloJSStaticNamed {
+  login(option?: HelloJSLoginOptions, callback?: () => void): void;
+  logout(callback?: () => void): void;
+  getAuthResponse(): any;
+}
+
+interface HelloJSOAuthDef {
+  version: number;
+  auth: string;
+  request: string;
+  token: string;
+}
+
+interface HelloJSServiceDef {
+  name: string;
+  oauth: HelloJSOAuthDef;
+  scope?: { [id: string]: string; };
+  scope_delim?: string;
+  autorefresh?: boolean;
+  base?: string;
+  root?: string;
+  get?: { [id: string]: any; }
+  post?: { [id: string]: any; }
+  del?: { [id: string]: string; }
+  put?: { [id: string]: any; }
+  wrap?: { [id: string]: (par: any) => void; }
+  xhr?: (par: any) => void;
+  jsonp?: (par: any) => void;
+  form?: (par: any) => void;
+  api?: (...par: any[]) => void;
+}
+
+declare var hello: HelloJSStatic;