diff --git a/bugsnag/bugsnag-tests.ts b/bugsnag/bugsnag-tests.ts
new file mode 100644
index 0000000000..8e91e03c6b
--- /dev/null
+++ b/bugsnag/bugsnag-tests.ts
@@ -0,0 +1,27 @@
+/// <reference path="bugsnag.d.ts" />
+
+Bugsnag.apiKey = "API-KEY";
+
+Bugsnag.releaseStage = "beta";
+Bugsnag.appVersion = "2.4.56";
+
+Bugsnag.user = <BugsnagUser>{
+    name: "Robert K. User",
+    email: "robbie@example.com"
+};
+
+Bugsnag.metaData = {
+    account: {
+        name: "Acme Co",
+        plan: "hacker"
+    }
+}
+
+Bugsnag.notifyException(new Error("Something broke"));
+
+Bugsnag.notify("Serious Problem", "We are out of cookies");
+
+Bugsnag.notify("Serious Problem",
+               "We are out of cookies",
+               { remaining_snacks: ["carrots", "biscuits"] },
+               "error");
diff --git a/bugsnag/bugsnag.d.ts b/bugsnag/bugsnag.d.ts
new file mode 100644
index 0000000000..1ba14de2ef
--- /dev/null
+++ b/bugsnag/bugsnag.d.ts
@@ -0,0 +1,90 @@
+// Type definitions for Bugsnag v2.5.0
+// Project: https://github.com/bugsnag/bugsnag-js
+// Definitions by: Delisa Mason <https://github.com/kattrali>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+interface BugsnagUser {
+    id?:    string,
+    name?:  string,
+    email?: string
+}
+
+interface BugsnagStatic {
+    /** Bugsnag project API key */
+    apiKey: string;
+    /** The client application version */
+    appVersion: string;
+    /** true if Bugsnag should be automatically notified of errors which are
+     *  sent to `window.onerror`
+     */
+    autoNotify: boolean;
+    /** Callback run before error reports are sent to Bugsnag.
+     *  Payload and metadata information can be altered or removed altogether.
+     *  To cancel sending the report, return false from this function.
+     */
+    beforeNotify: (payload: any, metaData: any) => boolean;
+    /** The pathname of the current page, not including the fragment identifier
+     *  nor search parameters
+     */
+    context: string;
+    /** Disables console-based logging. Defaults to false. */
+    disableLog: boolean;
+    /** The address used to send errors to Bugsnag. The default is
+     *  `https://notify.bugsnag.com/js`
+     */
+    endpoint: string;
+    /** Enables sending inline scripts on the page to Bugsnag to assist with
+     *  debugging. Defaults to true
+     */
+    inlineScript: boolean;
+    /** The maximum depth to parse the error stack */
+    maxDepth: number;
+    /** Additional metadata to send to Bugsnag with every error. */
+    metaData: any;
+    /** The method used for the notify request. The default is a temporary
+     *  JavaScript image object, however Chrome apps/extensions and other
+     *  applications where XHR is needed can use `xhr` instead.
+     */
+    notifyHandler: string;
+    /** The releases stages during which Bugsnag will be notified of errors. */
+    notifyReleaseStages: string[];
+    /** The recorded root of the project. The default is the current host
+     *  address (protocol and domain).
+     */
+    projectRoot: string;
+    /** Current phase of the application release process. The default is
+     *  `production`
+     */
+    releaseStage: string;
+    /** Information about the current user which is sent to Bugsnag with
+     *  exception reports
+     */
+    user: BugsnagUser;
+
+    /** Continue catching exceptions after the page error limit is reached.
+     *  Useful for long-running single-page apps
+     */
+    refresh(): void;
+
+    /** Remove Bugsnag from the window object and restore the previous
+     *  binding
+     */
+    noConflict(): BugsnagStatic;
+
+    /** Send caught exceptions to Bugsnag. Valid severity values are `info`,
+     *  `warning`, and `error`, in order of increasing severity.
+    */
+    notifyException(exception: Error, name?: string, metaData?: any,
+                    severity?: string): void;
+
+    /** Send custom errors to Bugsnag */
+    notify(name: string, message: string, metaData?: any,
+           severity?: string): void;
+}
+
+declare var Bugsnag: BugsnagStatic;
+
+declare module "Bugsnag" {
+    export = Bugsnag;
+}
+