diff --git a/hellosign-embedded/hellosign-embedded-tests.ts b/hellosign-embedded/hellosign-embedded-tests.ts
new file mode 100644
index 0000000000..455171942e
--- /dev/null
+++ b/hellosign-embedded/hellosign-embedded-tests.ts
@@ -0,0 +1,39 @@
+/// <reference path="hellosign-embedded.d.ts" />
+
+HelloSign.init('abc123');
+
+// some options
+HelloSign.open({
+    url: 'http://example.org',
+    messageListener: (e: HelloSign.MessageEvent) => {
+        if (e.event === HelloSign.EVENT_SIGNED) {
+            console.log('signed');
+        }
+    },
+    uxVersion: 2
+});
+
+// all options
+HelloSign.open({
+    url: 'http://example.org',
+    redirectUrl: 'https://github.com/DefinitelyTyped/DefinitelyTyped',
+    allowCancel: true,
+    messageListener: (e: HelloSign.MessageEvent) => {
+        if (e.event === HelloSign.EVENT_SIGNED) {
+            console.log('signed');
+        }
+    },
+    userCulture: HelloSign.CULTURES.EN_US,
+    debug: true,
+    skipDomainVerification: true,
+    container: document.getElementById('#hellosign-container'),
+    height: 1326,
+    hideHeader: true,
+    uxVersion: 2,
+    requester: 'hellosign@example.org',
+    whiteLabelingOptions: {
+        "page_background_color": "#f7f8f9"
+    }
+});
+
+HelloSign.close();
diff --git a/hellosign-embedded/hellosign-embedded.d.ts b/hellosign-embedded/hellosign-embedded.d.ts
new file mode 100644
index 0000000000..f215dac6bc
--- /dev/null
+++ b/hellosign-embedded/hellosign-embedded.d.ts
@@ -0,0 +1,193 @@
+// Type definitions for hellosign-embedded v1.0.3
+// Project: https://github.com/HelloFax/hellosign-embedded
+// Definitions by: Brian Surowiec <https://github.com/xt0rted/>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+declare module HelloSign {
+    interface MessageEvent {
+        event: string;
+    }
+
+    interface ClientCultures {
+        /**
+         * English (United States)
+         *
+         * @default en_US
+         */
+        EN_US: string;
+
+        /**
+         * French (France)
+         *
+         * @default fr_FR
+         */
+        FR_FR: string;
+
+        /**
+         * German (Germany)
+         *
+         * @default de_DE
+         */
+        DE_DE: string;
+
+        /**
+         * Swedish (Sweden)
+         *
+         * @default sv_SE
+         */
+        SV_SE: string;
+
+        /**
+         * Chinese (China)
+         *
+         * @default zh_CN
+         */
+        ZH_CN: string;
+
+        /**
+         * Danish (Denmark)
+         *
+         * @default da_DK
+         */
+        DA_DK: string;
+
+        /**
+         * Dutch (The Netherlands)
+         * @default nl_NL
+         */
+        NL_NL: string;
+
+        /**
+         * The available client UI cultures
+         */
+        supportedCultures: string[];
+    }
+
+    interface OpenParameters {
+        /**
+         * The url to open in the child frame
+         */
+        url?: string;
+
+        /**
+         * Where to go after the signature is completed
+         */
+        redirectUrl?: string;
+
+        /**
+         * Whether a cancel button should be displayed
+         *
+         * @default true
+         */
+        allowCancel?: boolean;
+
+        /**
+         * A listener for X-window messages coming from the child frame
+         */
+        messageListener?: (eventData: MessageEvent) => void;
+
+        /**
+         * One of the HelloSign.CULTURES.supportedCultures
+         *
+         * @default HelloSign.CULTURES.EN_US
+         */
+        userCulture?: string;
+
+        /**
+         * When true, debugging statements will be written to the console
+         *
+         * @default false
+         */
+        debug?: boolean;
+
+        /**
+         * When true, domain verification step will be skipped if and only if the Signature Request was created with test_mode=1
+         *
+         * @default false
+         */
+        skipDomainVerification?: boolean;
+
+        /**
+         * DOM element that will contain the iframe on the page (defaults to document.body)
+         */
+        container?: Element;
+
+        /**
+         * Height of the iFrame (only applicable when a container is specified)
+         */
+        height?: number;
+
+        /**
+         * When true, the header will be hidden.
+         * This is only functional for customers with embedded branding enabled.
+         *
+         * @default false
+         */
+        hideHeader?: boolean;
+
+        /**
+         * The version of the embedded user experience to display to signers (1 = legacy, 2 = responsive).
+         * This option is only honored if your account has accessed the API prior to Nov 14, 2015.
+         */
+        uxVersion?: number;
+
+        /**
+         * The email of the person issuing a signature request.
+         * Required for allowing 'Me + Others' requests
+         */
+        requester?: string;
+
+        /**
+         * An associative array to be used to customize the app's signer page
+         */
+        whiteLabelingOptions?: Object;
+    }
+
+    interface HelloSignStatic {
+        /**
+         * The available client UI cultures
+         */
+        CULTURES: ClientCultures;
+
+        /**
+         * The signature request was signed
+         *
+         * @default signature_request_signed
+         */
+        EVENT_SIGNED: string;
+
+        /**
+         * The user closed the iFrame before completing
+         *
+         * @default signature_request_canceled
+         */
+        EVENT_CANCELED: string;
+
+        /**
+         * An error occurred in the iFrame
+         *
+         * @default error
+         */
+        EVENT_ERROR: string;
+
+        /**
+         * Initialize using your HelloSign API client ID.
+         *
+         * @param appClientId The API client ID the request is for.
+         */
+        init(appClientId: string): void;
+
+        /**
+         * Open the signing window.
+         *
+         * @param params The options to use when opening the signing window.
+         */
+        open(params: OpenParameters): void;
+
+        /**
+         * Close the signing window.
+         */
+        close(): void;
+    }
+}
+
+declare var HelloSign: HelloSign.HelloSignStatic;