diff --git a/types/hat/hat-tests.ts b/types/hat/hat-tests.ts
new file mode 100644
index 0000000000..1b91702742
--- /dev/null
+++ b/types/hat/hat-tests.ts
@@ -0,0 +1,10 @@
+import * as hat from 'hat';
+
+const randomId = hat();
+
+const rack = hat.rack();
+rack('car');
+const tractorId = rack('tractor');
+rack.get(tractorId);
+rack.set(randomId, 'bicycle');
+rack.hats;
diff --git a/types/hat/index.d.ts b/types/hat/index.d.ts
new file mode 100644
index 0000000000..58a7bdc983
--- /dev/null
+++ b/types/hat/index.d.ts
@@ -0,0 +1,28 @@
+// Type definitions for hat 0.0
+// Project: https://github.com/substack/node-hat
+// Definitions by: Sasha Grin <https://github.com/tup1tsa>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+interface HatsList {
+    [key: string]: any;
+}
+
+interface Rack {
+    bits: number;
+    base: number;
+    hats: HatsList;
+
+    (data: any): string;
+    get(id: string): any;
+    set(id: string, value: any): Rack;
+}
+
+type CreateRack = (bits?: number, base?: number, expandBy?: number) => Rack;
+
+interface Hat {
+    (bits?: number, base?: number): string;
+    rack: CreateRack;
+}
+
+declare const hat: Hat;
+export = hat;
diff --git a/types/hat/tsconfig.json b/types/hat/tsconfig.json
new file mode 100644
index 0000000000..c13e03fd48
--- /dev/null
+++ b/types/hat/tsconfig.json
@@ -0,0 +1,23 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es5"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "hat-tests.ts"
+    ]
+}
diff --git a/types/hat/tslint.json b/types/hat/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/hat/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }