diff --git a/objectid.d.ts b/objectid.d.ts
new file mode 100644
index 0000000..dc89bb7
--- /dev/null
+++ b/objectid.d.ts
@@ -0,0 +1,29 @@
+// Type definitions for bson-objectid 1.1.5
+// Project: bson-objectid
+// Definitions by: Marcel Ernst <https://www.marcel-ernst.de>
+
+export = ObjectID;
+
+declare class ObjectID {
+    static createFromTime(time: number): ObjectID;
+    static createFromHexString(hexString: string): ObjectID;
+    static isValid(hexString: string):boolean;
+    static isValid(ObjectID: ObjectID):boolean;
+    static generate(): string;
+    static generate(time: number): string;
+    static toString():string;
+    
+    constructor();
+    constructor(time: number);
+    constructor(hexString: string);
+    constructor(idString: string);
+    constructor(array: number[]);
+    constructor(buffer: Buffer);
+
+    readonly id: string;
+    readonly str: string;
+
+    toHexString(): string;
+    equals(other: ObjectID): boolean;
+    getTimestamp(): number;
+}
diff --git a/package.json b/package.json
index f5bbdfc..b730d59 100644
--- a/package.json
+++ b/package.json
@@ -3,10 +3,12 @@
   "version": "1.1.5",
   "description": "Construct ObjectIDs without the mongodb driver or bson module",
   "main": "objectid.js",
+  "typings": "./objectid.d.ts",
   "directories": {
     "test": "test"
   },
   "scripts": {
+    "typescript-test": "tsc --project typing-tests",
     "test": "mocha"
   },
   "repository": {
@@ -28,6 +30,8 @@
   },
   "homepage": "https://github.com/williamkapke/bson-objectid",
   "devDependencies": {
-    "should": "^4.1.0"
+    "@types/node": "^8.0.31",
+    "should": "^4.1.0",
+    "typescript": "^2.5.3"
   }
 }
diff --git a/typing-tests/objectid-tests.ts b/typing-tests/objectid-tests.ts
new file mode 100644
index 0000000..d34a7d6
--- /dev/null
+++ b/typing-tests/objectid-tests.ts
@@ -0,0 +1,94 @@
+/// <reference path="../objectid.d.ts" />
+import ObjectID = require('../objectid');
+
+// ----------------------------------------------------------------------------
+// setup test data
+const time:number = 1414093117;
+const array:number[] = [ 84, 73, 90, 217, 76, 147, 71, 33, 237, 231, 109, 144 ];
+const buffer:Buffer = new Buffer([84, 73, 90, 217, 76, 147, 71, 33, 237, 231, 109, 144 ]);
+const hexString:string = "54495ad94c934721ede76d90";
+const idString:string = "TIZÙL“G!íçm";
+
+
+// ----------------------------------------------------------------------------
+// should construct with no arguments
+let oid:ObjectID = new ObjectID();
+
+// ----------------------------------------------------------------------------
+// should have an `id` property
+oid.id;
+
+// ----------------------------------------------------------------------------
+// should have a `str` property
+oid.str;
+
+// ----------------------------------------------------------------------------
+// should construct with a `time` argument
+oid = new ObjectID(time);
+
+// ----------------------------------------------------------------------------
+// should construct with an `array` argument
+oid = new ObjectID(array);
+
+// ----------------------------------------------------------------------------
+// should construct with a `buffer` argument
+oid = new ObjectID(buffer);
+
+// ----------------------------------------------------------------------------
+// should construct with a `hexString` argument
+oid = new ObjectID(hexString);
+
+// ----------------------------------------------------------------------------
+// should construct with a `idString` argument
+oid = new ObjectID(idString);
+
+// ----------------------------------------------------------------------------
+// should construct with `ObjectID.createFromTime(time)` and should have 0's at the end
+oid = ObjectID.createFromTime(time);
+
+// ----------------------------------------------------------------------------
+// should construct with `ObjectID.createFromHexString(hexString)`
+oid = ObjectID.createFromHexString(hexString);
+
+// ----------------------------------------------------------------------------
+// should correctly retrieve timestamp
+const timestamp:number = oid.getTimestamp();
+
+// ----------------------------------------------------------------------------
+// should validate valid hex strings
+let isValid:boolean = ObjectID.isValid(hexString);
+
+// ----------------------------------------------------------------------------
+// should validate legit ObjectID objects
+isValid = ObjectID.isValid(oid);
+
+// ----------------------------------------------------------------------------
+// should invalidate bad strings
+// not necessary for typescript
+
+// ----------------------------------------------------------------------------
+// should evaluate equality with .equals()
+const id1 = new ObjectID();
+const id2 = new ObjectID(id1.str);
+const equals:boolean = id1.equals(id2);
+
+// ----------------------------------------------------------------------------
+// should evaluate equality with via deepEqual
+// not necessary for typescript
+
+// ----------------------------------------------------------------------------
+// should generate valid hex strings
+const str1:string = ObjectID.generate();
+const str2:string = ObjectID.generate(time);
+
+// ----------------------------------------------------------------------------
+// should convert to a hex string for JSON.stringify
+// not necessary for typescript
+
+// ----------------------------------------------------------------------------
+// should convert to a hex string for ObjectID.toString()
+const toStr:string = oid.toString();
+
+// ----------------------------------------------------------------------------
+// should throw and error if constructing with an invalid string
+// not necessary for typescript
diff --git a/typing-tests/tsconfig.json b/typing-tests/tsconfig.json
new file mode 100644
index 0000000..fd50e4e
--- /dev/null
+++ b/typing-tests/tsconfig.json
@@ -0,0 +1,12 @@
+{
+    "compileOnSave": false,
+    "compilerOptions": {
+        "module": "commonjs",
+        "noEmit": true,
+        "noImplicitAny": true
+    },
+    "files": [
+        "../objectid.d.ts",
+        "./objectid-tests.ts"
+    ]
+}
\ No newline at end of file