diff --git a/.gitignore b/.gitignore
index ff7dfd2..92a163e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,6 @@
 .idea
 *.iml
 node_modules
+.tscache
+test/typescript/axios.js*
+
diff --git a/Gruntfile.js b/Gruntfile.js
index 084f0c5..3923fc6 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -11,6 +11,16 @@ module.exports = function(grunt) {
       dist: 'dist/**'
     },
 
+    ts: {
+      test: {
+        src: ['test/typescript/*.ts'],
+        out: 'test/typescript/out.js',
+        options: {
+          module: 'commonjs',
+        }
+      }
+    },
+
     update_json: {
       bower: {
         src: 'package.json',
@@ -68,7 +78,7 @@ module.exports = function(grunt) {
     }
   });
 
-  grunt.registerTask('test', 'Run the jasmine and nodeunit tests', ['webpack:global', 'nodeunit', 'karma:single']);
+  grunt.registerTask('test', 'Run the jasmine and nodeunit tests', ['webpack:global', 'nodeunit', 'karma:single', 'ts']);
   grunt.registerTask('build', 'Run webpack and bundle the source', ['webpack']);
   grunt.registerTask('publish', 'Prepare the code for release', ['clean', 'test', 'build', 'usebanner', 'update_json']);
 
@@ -133,4 +143,4 @@ module.exports = function(grunt) {
 
     return webpackConfig;
   }
-};
\ No newline at end of file
+};
diff --git a/README.md b/README.md
index c74435d..6407c23 100644
--- a/README.md
+++ b/README.md
@@ -234,6 +234,14 @@ axios.get('/user/12345')
   });
 ```
 
+## TypeScript Definition
+Axios includes a [TypeScript](http://typescriptlang.org) definition.
+```typescript
+/// <reference path="axios.d.ts" />
+import axios = require('axios');
+axios.get('/user?ID=12345');
+```
+
 ## Credits
 
 axios is heavily inspired by the [$http service](https://docs.angularjs.org/api/ng/service/$http) provided in [Angular](https://angularjs.org/). Ultimately axios is an effort to provide a standalone `$http`-like service for use outside of Angular.
@@ -242,4 +250,4 @@ axios uses the [es6-promise](https://github.com/jakearchibald/es6-promise) polyf
 
 ## License
 
-MIT
\ No newline at end of file
+MIT
diff --git a/axios.d.ts b/axios.d.ts
new file mode 100644
index 0000000..43c4e2f
--- /dev/null
+++ b/axios.d.ts
@@ -0,0 +1,55 @@
+// Type definitions for Axios v0.4.1
+// Project: https://github.com/mzabriskie/axios
+
+
+
+declare var axios: axios.AxiosStatic
+
+declare module axios {
+  interface AxiosStatic {
+    (options: axios.RequestOptions): axios.Promise;
+    get(url: string): axios.Promise;
+    get(url: string, options?: any): axios.Promise;
+    post(url: string): axios.Promise;
+    post(url: string, data?: any): axios.Promise;
+    put(url: string): axios.Promise;
+    put(url: string, data?: any): axios.Promise;
+    delete(url: string): axios.Promise;
+    delete(url: string, data?: any): axios.Promise;
+    patch(url: string): axios.Promise;
+    patch(url: string, data?: any): axios.Promise;
+    head(url: string): axios.Promise;
+    head(url: string, options?: any): axios.Promise;
+    all(iterable: any): axios.Promise;
+    spread(callback: any): axios.Promise;
+  }
+  
+  interface Response {
+    data?: any;
+    status?: number;
+    headers?: any;
+    config?: any;
+  }
+
+  interface Promise {
+    then(response: axios.Response): axios.Promise;
+    catch(response: axios.Response): axios.Promise;
+  }
+
+  interface RequestOptions {
+    url: string;
+    method?: string;
+    transformRequest?: (data: any) => any;
+    headers?: any;
+    params?: any;
+    data?: any;
+    withCredentials?: boolean;
+    responseType?: string;
+    xsrfCookieName?: string;
+    xsrfHeaderName?: string;
+  }
+}
+
+declare module "axios" {
+  export = axios;
+}
diff --git a/package.json b/package.json
index 2daf5f7..046aced 100644
--- a/package.json
+++ b/package.json
@@ -29,20 +29,21 @@
   },
   "devDependencies": {
     "grunt": "^0.4.5",
+    "grunt-banner": "^0.2.3",
     "grunt-contrib-clean": "^0.6.0",
+    "grunt-contrib-nodeunit": "^0.4.1",
     "grunt-contrib-watch": "^0.6.1",
-    "webpack": "^1.4.0-beta9",
-    "webpack-dev-server": "^1.4.10",
+    "grunt-karma": "^0.8.3",
+    "grunt-ts": "^1.12.1",
+    "grunt-update-json": "^0.1.3",
     "grunt-webpack": "^1.0.8",
-    "load-grunt-tasks": "^0.6.0",
     "karma": "^0.12.21",
     "karma-jasmine": "^0.1.5",
-    "grunt-karma": "^0.8.3",
-    "karma-phantomjs-launcher": "^0.1.4",
     "karma-jasmine-ajax": "^0.1.4",
-    "grunt-update-json": "^0.1.3",
-    "grunt-contrib-nodeunit": "^0.4.1",
-    "grunt-banner": "^0.2.3"
+    "karma-phantomjs-launcher": "^0.1.4",
+    "load-grunt-tasks": "^0.6.0",
+    "webpack": "^1.4.0-beta9",
+    "webpack-dev-server": "^1.4.10"
   },
   "browser": {
     "./lib/adapters/http.js": "./lib/adapters/xhr.js"
diff --git a/test/typescript/axios.ts b/test/typescript/axios.ts
new file mode 100644
index 0000000..e957b50
--- /dev/null
+++ b/test/typescript/axios.ts
@@ -0,0 +1,111 @@
+/// <reference path="../../axios.d.ts" />
+
+import axios = require('axios');
+
+axios.get('/user?ID=12345')
+  .then(function (response) {
+      console.log(response);
+    })
+  .catch(function (response) {
+      console.log(response);
+    });
+
+axios.get('/user', {
+    params: {
+      ID: 12345
+    }
+  })
+  .then(function (response) {
+    console.log(response);
+  })
+  .catch(function (response) {
+    console.log(response);
+  });
+
+axios.head('/user', {
+    params: {
+      ID: 12345
+    }
+  })
+  .then(function (response) {
+    console.log(response);
+  })
+  .catch(function (response) {
+    console.log(response);
+  });
+
+axios.delete('/user', {
+    params: {
+      ID: 12345
+    }
+  })
+  .then(function (response) {
+    console.log(response);
+  })
+  .catch(function (response) {
+    console.log(response);
+  });
+
+axios.post('/user', {
+    firstName: 'Fred',
+    lastName: 'Flintstone'
+  })
+  .then(function (response) {
+    console.log(response);
+  })
+  .catch(function (response) {
+    console.log(response);
+  });
+
+axios.put('/user', {
+    firstName: 'Fred',
+    lastName: 'Flintstone'
+  })
+  .then(function (response) {
+    console.log(response);
+  })
+  .catch(function (response) {
+    console.log(response);
+  });
+
+axios.patch('/user', {
+    firstName: 'Fred',
+    lastName: 'Flintstone'
+  })
+  .then(function (response) {
+    console.log(response.data);
+    console.log(response.status + 324);
+    console.log(response.headers);
+    console.log(response.config);
+  })
+  .catch(function (response) {
+    console.log(response);
+  });
+
+axios({
+  method: 'get',
+  url: '/user/12345'
+});
+
+axios({
+  method: 'get',
+  url: '/user/12345',
+  transformRequest: (data) => {
+    return data.doSomething();
+  }
+});
+
+axios({
+    url: "hi",
+    headers: {'X-Requested-With': 'XMLHttpRequest'},
+    params: {
+      ID: 12345
+    },
+    data: {
+      firstName: 'Fred'
+    },
+    withCredentials: false, // default
+    responseType: 'json', // default
+    xsrfCookieName: 'XSRF-TOKEN', // default
+    xsrfHeaderName: 'X-XSRF-TOKEN' // default
+});