diff --git a/CONTRIBUTORS.md b/CONTRIBUTORS.md
index 357e8105d..eebbf335d 100644
--- a/CONTRIBUTORS.md
+++ b/CONTRIBUTORS.md
@@ -125,6 +125,7 @@ All definitions files include a header with the author and editors, so at some p
 * [highlight.js](https://github.com/isagalaev/highlight.js) (by [Niklas Mollenhauer](https://github.com/nikeee))
 * [History.js](https://github.com/browserstate/history.js) (by [Boris Yankov](https://github.com/borisyankov))
 * [Html2Canvas.js](https://github.com/niklasvh/html2canvas/) (by [Richard Hepburn](https://github.com/rwhepburn))
+* [http-string-parser](https://github.com/apiaryio/http-string-parser) (by [MIZUNE Pine](https://github.com/pine613))
 * [Humane.js](http://wavded.github.com/humane-js/) (by [John Vrbanac](https://github.com/jmvrbanac))
 * [i18next](http://i18next.com/) (by [Maarten Docter](https://github.com/mdocter))
 * [iCheck](http://damirfoy.com/iCheck/) (by [Dániel Tar](https://github.com/qcz))
diff --git a/http-string-parser/http-string-parser-test.ts b/http-string-parser/http-string-parser-test.ts
new file mode 100644
index 000000000..9c4116e5d
--- /dev/null
+++ b/http-string-parser/http-string-parser-test.ts
@@ -0,0 +1,42 @@
+/// <reference path="http-string-parser.d.ts" />
+
+import parser = require("http-string-parser");
+
+function test_request(): void {
+    var result = parser.parseRequest("HTTP/1.1 GET /\r\nHost: www.example.com\r\n\r\n");
+
+    var body: string = result.body;
+    var headers: { [key: string]: string } = result.headers;
+    var method: string = result.method;
+    var uri: string = result.uri;
+}
+
+function test_response(): void {
+    var response = parser.parseResponse("HTTP/1.1 200 OK\r\n\r\n");
+
+    var body: string = response.body;
+    var headers: { [key: string]: string } = response.headers;
+    var statusCode: string = response.statusCode;
+    var statusMessage: string = response.statusMessage;
+}
+
+function test_requestLine(): void {
+    var result = parser.parseRequestLine("HTTP/1.1 GET /");
+
+    var method: string = result.method;
+    var protocol: string = result.protocol;
+    var uri: string = result.uri;
+}
+
+function test_statusLine(): void {
+    var result = parser.parseStatusLine("HTTP/1.1 200 OK");
+
+    var protocol: string = result.protocol;
+    var statusCode: string = result.statusCode;
+    var statusMessage: string = result.statusMessage;
+}
+
+function test_headers(): void {
+    var result: { [key: string]: string } =
+        parser.parseHeaders("Content-Type: text/html; charset=utf-8\r\nContent-Length: 256\r\n");
+}
\ No newline at end of file
diff --git a/http-string-parser/http-string-parser.d.ts b/http-string-parser/http-string-parser.d.ts
new file mode 100644
index 000000000..4239cd9df
--- /dev/null
+++ b/http-string-parser/http-string-parser.d.ts
@@ -0,0 +1,38 @@
+// Type definitions for http-string-parser
+// Project: https://github.com/apiaryio/http-string-parser
+// Definitions by: MIZUNE Pine <https://github.com/pine613>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+declare module "http-string-parser" {
+    interface ParseRequestResult {
+        method: string;
+        uri: string;
+        headers: { [key: string]: string };
+        body: string;
+    }
+
+    interface ParseResponseResult {
+        statusCode: string;
+        statusMessage: string;
+        headers: { [key: string]: string };
+        body: string;
+    }
+
+    interface ParseRequestLineResult {
+        method: string;
+        uri: string;
+        protocol: string;
+    }
+
+    interface ParseStatusLineResult {
+        protocol: string;
+        statusCode: string;
+        statusMessage: string;
+    }
+
+    export function parseRequest(requestString: string): ParseRequestResult;
+    export function parseResponse(responseString: string): ParseResponseResult;
+    export function parseRequestLine(requestLineString: string): ParseRequestLineResult;
+    export function parseStatusLine(statusLine: string): ParseStatusLineResult;
+    export function parseHeaders(headerLines: string): { [key: string]: string };
+}