diff --git a/microgears/microgears-tests.ts b/microgears/microgears-tests.ts
new file mode 100644
index 000000000..124058de7
--- /dev/null
+++ b/microgears/microgears-tests.ts
@@ -0,0 +1,58 @@
+/// <reference path="microgears.d.ts" />
+
+
+function verify_module_file() {
+    var tracePlugin = new TracePlugin();
+    microgears.addPlugin(tracePlugin);
+    var service = new UserService();
+    var userService = microgears.addService(service);
+
+
+}
+
+class TracePlugin implements microgears.Plugin {
+    name: 'TracePlugin';
+    public beforeChain(args:Array<any>, _meta: microgears.MetaInformation) {
+        var serviceName = _meta.serviceName,
+            method = _meta.methodName;
+        console.log('before call-> ' + serviceName + '.' + method);
+
+        _meta.extra = {
+            count: 1
+        };
+
+        return args
+    }
+    public afterChain(result:any, _meta: microgears.MetaInformation) {
+        var serviceName = _meta.serviceName,
+            method = _meta.methodName;
+
+        console.log('after of-> ' + serviceName + '.' + method);
+        if (_meta.extra.count) {
+            console.log('this number comes to the beforeChain: ' + _meta.extra.count);
+        }
+
+        return result;
+    }
+}
+
+class User {
+    name: string;
+    email: string;
+
+    constructor(name: string, email: string) {
+        this.email = email;
+        this.name = name;
+    }
+}
+
+class UserService implements microgears.Service {
+    name: string = "userService";
+    namespace: string = "services.user";
+
+    public findUserById(id: number) {
+        return new User('test', 'test@example.com');
+    }
+
+}
+
diff --git a/microgears/microgears.d.ts b/microgears/microgears.d.ts
new file mode 100644
index 000000000..47e19b4e3
--- /dev/null
+++ b/microgears/microgears.d.ts
@@ -0,0 +1,33 @@
+// Type definitions for microgears v4.0.0
+// Project: http://github.com/marcusdb/microgears
+// Definitions by: Marcus David Bronstein <https://github.com/marcusdb>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+declare namespace microgears {
+    export interface Service {
+        name: string;
+        async?: boolean;
+        pathname?: string;
+        namespace: string;
+    }
+
+    interface MetaInformation {
+        serviceName: string;
+        methodName: string;
+        serviceNameSpace: string;
+        extra: any;
+    }
+
+    interface Plugin {
+        name: string;
+        beforeChain(arguments: Array<any>, metaInfo: MetaInformation): Array<any>;
+        afterChain<T>(result: T, metaInfo: MetaInformation): T;
+    }
+
+    function addService(service: Service): Service;
+    function addPlugin(plugin: Plugin): void;
+}
+
+declare module "microgears" {
+    export = microgears;
+}
\ No newline at end of file