diff --git a/package.json b/package.json
index 4df37586..2acfc261 100644
--- a/package.json
+++ b/package.json
@@ -7,6 +7,7 @@
   "version": "2.0.0-alpha.1",
   "description": "An isomorphic JavaScript client for interacting with the WordPress REST API",
   "main": "wpapi.js",
+  "types": "types",
   "repository": {
     "type": "git",
     "url": "https://github.com/wp-api/node-wpapi.git"
@@ -57,7 +58,8 @@
     "test:integration": "jest tests/integration",
     "test:ci": "npm run eslint && jest tests/unit --coverage",
     "pretest": "npm run lint || true",
-    "test": "jest --coverage"
+    "test": "jest --coverage",
+    "dtslint": "dtslint types"
   },
   "dependencies": {
     "li": "^1.3.0",
@@ -75,6 +77,7 @@
     "@babel/preset-env": "^7.5.0",
     "babel-loader": "^8.0.6",
     "combyne": "^2.0.0",
+    "dtslint": "^1.0.2",
     "eslint": "^4.19.1",
     "grunt": "^1.0.4",
     "grunt-cli": "^1.2.0",
@@ -88,6 +91,7 @@
     "minimist": "^1.2.0",
     "prompt": "^1.0.0",
     "rimraf": "^2.6.3",
+    "tslint": "^5.20.0",
     "webpack": "^4.35.0",
     "webpack-bundle-analyzer": "^3.3.2",
     "webpack-cli": "^3.3.5"
diff --git a/types/index.d.ts b/types/index.d.ts
new file mode 100644
index 00000000..76ba39a6
--- /dev/null
+++ b/types/index.d.ts
@@ -0,0 +1,30 @@
+// TypeScript Version: 2.2
+
+/**
+ * UMD export
+ */
+export as namespace WPAPI;
+export = WPAPI;
+
+declare class WPAPI {
+    constructor(options: any);
+    auth(credentials: any): any;
+    bootstrap(routes: any): any;
+    namespace(namespace: any): any;
+    registerRoute(namespace: any, restBase: any, options: any): any;
+    root(relativePath: any): any;
+    setHeaders(headers: any, value: any): any;
+    transport(transport: any): any;
+    url(url: any): any;
+    static discover(url: any): any;
+    static site(endpoint: any, routes: any): any;
+}
+
+declare namespace WPAPI {
+    namespace transport {
+        function get(wpreq: any, callback: any): any;
+        function head(wpreq: any, callback: any): any;
+        function post(wpreq: any, data: any, callback: any): any;
+        function put(wpreq: any, data: any, callback: any): any;
+    }
+}
diff --git a/types/tests.ts b/types/tests.ts
new file mode 100644
index 00000000..aff57624
--- /dev/null
+++ b/types/tests.ts
@@ -0,0 +1,5 @@
+import * as WPAPI from "wpapi";
+
+const instance = new WPAPI(''); // $ExpectType WPAPI
+
+instance.auth(); // $ExpectError
diff --git a/types/tsconfig.json b/types/tsconfig.json
new file mode 100644
index 00000000..9abcb77a
--- /dev/null
+++ b/types/tsconfig.json
@@ -0,0 +1,26 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictFunctionTypes": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "paths": {
+            "wpapi": ["."]
+        },
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "tests.ts"
+    ]
+}
diff --git a/types/tslint.json b/types/tslint.json
new file mode 100644
index 00000000..4c3a5489
--- /dev/null
+++ b/types/tslint.json
@@ -0,0 +1,3 @@
+{
+    "extends": "dtslint/dtslint.json"
+}