diff --git a/grecaptcha/grecaptcha-tests.ts b/grecaptcha/grecaptcha-tests.ts
new file mode 100644
index 000000000..cfc86e71b
--- /dev/null
+++ b/grecaptcha/grecaptcha-tests.ts
@@ -0,0 +1,21 @@
+/// <reference path="grecaptcha.d.ts" />
+
+var params: ReCaptchaV2.Parameters = {
+  "sitekey": "mySuperSecretKey",
+  "theme": "black", // no type-checking here. 
+  "type": "image",
+  "tabindex": 5,
+  "callback": (response: string) => { },
+  "expired-callback": () => { },
+}
+
+var id1: number = grecaptcha.render("foo");
+var id2: number = grecaptcha.render("foo", params);
+var id3: number = grecaptcha.render(document.getElementById("foo"));
+var id4: number = grecaptcha.render(document.getElementById("foo"), params);
+
+// response takes a number and returns a string
+var response1: string = grecaptcha.getResponse(id1);
+
+// reset takes a number
+grecaptcha.reset(id1);
diff --git a/grecaptcha/grecaptcha.d.ts b/grecaptcha/grecaptcha.d.ts
new file mode 100644
index 000000000..e246aaf17
--- /dev/null
+++ b/grecaptcha/grecaptcha.d.ts
@@ -0,0 +1,67 @@
+// Type definitions for Google Recaptcha v2
+// Project: https://www.google.com/recaptcha
+// Definitions by: Kristof Mattei <http://kristofmattei.be>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+declare var grecaptcha: ReCaptchaV2.ReCaptcha;
+
+declare module ReCaptchaV2
+{
+  class ReCaptcha
+  {
+    /**
+      * Renders the container as a reCAPTCHA widget and returns the ID of the newly created widget.
+      * @param container The HTML element to render the reCAPTCHA widget. Specify either the ID of the container (string) or the DOM element itself.
+      * @param parameters An object containing parameters as key=value pairs, for example, {"sitekey": "your_site_key", "theme": "light"}. See @see render parameters.
+      * @return the ID of the newly created widget.
+      **/
+    render(container: (string | HTMLElement), parameters?: Parameters): number;    
+    /**
+      * Resets the reCAPTCHA widget.
+      * @param opt_widget_id Optional widget ID, defaults to the first widget created if unspecified.
+      **/
+    reset(opt_widget_id?: number): void;
+    /**
+      * Gets the response for the reCAPTCHA widget.
+      * @param opt_widget_id Optional widget ID, defaults to the first widget created if unspecified.
+      * @return the response of the reCAPTCHA widget.
+      **/
+    getResponse(opt_widget_id?: number): string;
+  }
+
+  interface Parameters
+  {
+    /**
+      * Your sitekey.
+      **/
+    sitekey: string;
+    /**
+      * Optional. The color theme of the widget.
+      * Accepted values: "light", "dark"
+      * @default "light"
+      **/
+    theme?: string;
+    /**
+      * Optional. The type of CAPTCHA to serve.
+      * Accepted values: "audio ", "image"
+      * @default "image"
+      **/
+    type?: string;
+    /**
+      * Optional. The tabindex of the widget and challenge. 
+      * If other elements in your page use tabindex, it should be set to make user navigation easier.
+      **/
+    tabindex?: number;
+    /**
+      * Optional. Your callback function that's executed when the user submits a successful CAPTCHA response.
+      * The user's response, g-recaptcha-response, will be the input for your callback function.
+      **/
+    callback?: (response: string) => void;
+    /**
+      * Optional. Your callback function that's executed when the recaptcha response expires and the user needs to solve a new CAPTCHA.
+      **/
+    // Notice to the reader
+    // I need to surround this object with quotes, this will however break intellisense in VS 2013. 
+    "expired-callback"?: () => void;
+  }
+}