diff --git a/node-int64/node-int64-tests.ts b/node-int64/node-int64-tests.ts
new file mode 100644
index 000000000..095bab4a0
--- /dev/null
+++ b/node-int64/node-int64-tests.ts
@@ -0,0 +1,80 @@
+///
+///
+
+// Play example copy
+
+
+
+// First, let's illustrate the problem ...
+(0x123456789).toString(16);
+//!! '123456789' // <- what we expect.
+(0x123456789abcdef0).toString(16);
+//!! '123456789abcdf00' // <- Ugh! JS doesn't do big ints. :(
+
+// So let's create a couple Int64s using the above values ...
+
+// Require, of course
+let Int64 = require('node-int64');
+
+// x's value is what we expect (the decimal value of 0x123456789)
+let x = new Int64(0x123456789);
+//!! [Int64 value:4886718345 octets:00 00 00 01 23 45 67 89]
+
+// y's value is Infinity because it's outside the range of integer
+// precision. But that's okay - it's still useful because it's internal
+// representation (octets) is what we passed in
+let y = new Int64('123456789abcdef0');
+//!! [Int64 value:Infinity octets:12 34 56 78 9a bc de f0]
+
+// Let's do some math. Int64's behave like Numbers. (Sorry, Int64 isn't
+// for doing 64-bit integer arithmetic (yet) - it's just for carrying
+// around int64 values
+x + 1;
+//!! 4886718346
+y + 1;
+//!! Infinity
+
+// Int64 string operations ...
+'value: ' + x;
+//!! 'value: 4886718345'
+'value: ' + y;
+//!! 'value: Infinity'
+x.toString(2);
+//!! '100100011010001010110011110001001'
+y.toString(2);
+//!! 'Infinity'
+
+// Use JS's isFinite() method to see if the Int64 value is in the
+// integer-precise range of JS values
+isFinite(x);
+//!! true
+isFinite(y);
+//!! false
+
+// Get an octet string representation. (Yay, y is what we put in!)
+x.toOctetString();
+//!! '0000000123456789'
+y.toOctetString();
+//!! '123456789abcdef0'
+
+// Finally, some other ways to create Int64s ...
+
+// Pass hi/lo words
+new Int64(0x12345678, 0x9abcdef0);
+//!! [Int64 value:Infinity octets:12 34 56 78 9a bc de f0]
+
+// Pass a Buffer
+new Int64(new Buffer([0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0]));
+//!! [Int64 value:Infinity octets:12 34 56 78 9a bc de f0]
+
+// Pass a Buffer and offset
+new Int64(new Buffer([0,0,0,0,0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0]), 4);
+//!! [Int64 value:Infinity octets:12 34 56 78 9a bc de f0]
+
+// Pull out into a buffer
+new Int64(new Buffer([0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0])).toBuffer();
+//!!
+
+// Or copy into an existing one (at an offset)
+var buf = new Buffer(1024);
+new Int64(new Buffer([0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0])).copy(buf, 512);
diff --git a/node-int64/node-int64.d.ts b/node-int64/node-int64.d.ts
new file mode 100644
index 000000000..d441d2845
--- /dev/null
+++ b/node-int64/node-int64.d.ts
@@ -0,0 +1,39 @@
+// Type definitions for node-int64 v0.4.0
+// Project: https://github.com/broofa/node-int64
+// Definitions by: Benno Dreissig
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+///
+
+declare module "node-int64" {
+ class Int64 {
+
+ static MAX_INT: number;
+ static MIN_INT: number;
+
+ constructor(buffer:Buffer, offset?:number);
+ constructor(array:Uint8Array, offset?:number);
+ constructor(str:string);
+ constructor(hi:number, lo:number);
+
+
+ _2scomp(): void;
+
+ setValue(str:string): void;
+ toNumber(allowImprecise?:boolean): number;
+ valueOf(): number;
+ toString(radix?:number): string;
+ toOctetString(separator?:string): string;
+ toBuffer(rawBuffer?:boolean): Buffer;
+ copy(targetBuffer: Buffer, targetOffset?:number): void;
+ compare(other: Int64): number;
+ equals(other: Int64): boolean;
+ inspect(): string;
+
+ }
+
+ export = Int64;
+
+}
+
+