diff --git a/roslib/roslib-tests.ts b/roslib/roslib-tests.ts
new file mode 100644
index 000000000..c209b4a0c
--- /dev/null
+++ b/roslib/roslib-tests.ts
@@ -0,0 +1,13 @@
+/// <reference path="roslib.d.ts" />
+
+var ros = new ROSLIB.Ros({url: "http://localhost:9090"});
+
+ros.on('error', function(event) {
+	//do nothing
+});
+
+var service = new ROSLIB.Service({
+	ros: ros,
+	name: '/service_name',
+	serviceType: 'service_type'
+});
diff --git a/roslib/roslib.d.ts b/roslib/roslib.d.ts
new file mode 100644
index 000000000..667a37983
--- /dev/null
+++ b/roslib/roslib.d.ts
@@ -0,0 +1,24 @@
+// Type definitions for roslib.js
+// Project: http://wiki.ros.org/roslibjs
+// Definitions by: Stefan Profanter <https://github.com/Pro/>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+declare module ROSLIB {
+	export class Ros {
+		constructor(data: {
+			url: string
+		});
+
+		on(eventName: string, callback: (event: any) => void) : void;
+		connect(url: string) : void;
+	}
+
+
+	export class Service {
+		constructor(data: {
+			ros: Ros,
+			name: string,
+			serviceType: string
+		});
+	}
+}