diff --git a/package.json b/package.json
index 2d4c5fe..899cb25 100644
--- a/package.json
+++ b/package.json
@@ -10,6 +10,7 @@
   "keywords": [],
   "author": "Flummi",
   "license": "ISC",
+  "types": "types/index.d.ts",
   "type": "module",
   "devDependencies": {
     "@types/node": "^22.13.10",
diff --git a/tsconfig.json b/tsconfig.json
index aba885c..4dbae6b 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -7,7 +7,10 @@
     "rootDir": "./src",
     "strict": true,
     "esModuleInterop": true,
-    "removeComments": true
+    "removeComments": true,
+    "types": [
+      "node"
+    ]
   },
   "include": ["src"],
   "exclude": ["node_modules"]
diff --git a/types/index.d.ts b/types/index.d.ts
new file mode 100644
index 0000000..04d5adf
--- /dev/null
+++ b/types/index.d.ts
@@ -0,0 +1,49 @@
+import { Handler } from "../src/types.d.js";
+
+declare class Flummpress {
+  constructor();
+  router: Router;
+  tpl: Template;
+  middleware: Handler[];
+
+  use(plugin: Router | Template | Handler): this;
+  listen(...args: any[]): this;
+}
+
+declare class Router {
+  importRoutesFromPath(p: string, tpl?: Template | false): Promise<this>;
+  group(basePath: string | RegExp, callback: (methods: {
+    get: (path: string | RegExp, ...handlers: Handler[]) => void;
+    post: (path: string | RegExp, ...handlers: Handler[]) => void;
+    put: (path: string | RegExp, ...handlers: Handler[]) => void;
+    delete: (path: string | RegExp, ...handlers: Handler[]) => void;
+    patch: (path: string | RegExp, ...handlers: Handler[]) => void;
+  }) => void): this;
+
+  use(obj: Router | Template): void;
+
+  get(path: string | RegExp, ...handlers: Handler[]): this;
+  post(path: string | RegExp, ...handlers: Handler[]): this;
+  head(path: string | RegExp, ...handlers: Handler[]): this;
+  put(path: string | RegExp, ...handlers: Handler[]): this;
+  delete(path: string | RegExp, ...handlers: Handler[]): this;
+  patch(path: string | RegExp, ...handlers: Handler[]): this;
+
+  static(options: { dir?: string; route?: RegExp }): this;
+
+  getRoute(path: string, method: string): { path: string | RegExp; methods: { [method: string]: Handler[] } } | undefined;
+}
+
+declare class Template {
+  setDebug(debug: boolean): void;
+  setViews(views: string): void;
+  setGlobals(globals: Record<string, any>): void;
+  setCache(cache: boolean): void;
+
+  render(file: string, data?: Record<string, any>, locals?: Record<string, any>): string;
+  escape(str: string): string;
+  getMtime(file: string): number;
+}
+
+export { Flummpress, Router, Template };
+export default Flummpress;