diff --git a/radius/radius-tests.ts b/radius/radius-tests.ts
new file mode 100644
index 000000000..5d06d2fcb
--- /dev/null
+++ b/radius/radius-tests.ts
@@ -0,0 +1,43 @@
+/// <reference path="radius.d.ts" />
+
+import radius = require('radius');
+
+var radius_secret: string = "shhhh"
+
+radius.add_dictionary("./");
+var encodedPacket: NodeBuffer = radius.encode({
+    code: "Access-Request",
+    secret: radius_secret,
+    attributes: {
+        "NAS-IP-Address": "10.5.5.5",
+        "User-Name": "me",
+        "User-Password": "its-a-secret"
+    }
+});
+
+var radiusPacket: radius.RadiusPacket = radius.decode({
+    packet: encodedPacket,
+    secret: radius_secret
+});
+
+var response: NodeBuffer;
+
+if (radiusPacket.attributes["User-Name"] == "me" && radiusPacket.attributes["User-Password"] == "its-a-secret") {
+    response = radius.encode_response({
+        packet: radiusPacket,
+        code: "Access-Accept",
+        secret: radius_secret
+    });
+} else {
+    response = radius.encode_response({
+        packet: radiusPacket,
+        code: "Access-Reject",
+        secret: radius_secret
+    });
+}
+
+console.log(radius.verify_response({
+    request: encodedPacket,
+    response: response,
+    secret: radius_secret
+}));
\ No newline at end of file
diff --git a/radius/radius.d.ts b/radius/radius.d.ts
new file mode 100644
index 000000000..b1079fafd
--- /dev/null
+++ b/radius/radius.d.ts
@@ -0,0 +1,106 @@
+// Type definitions for node-radius
+// Project: https://github.com/retailnext/node-radius
+// Definitions by: Peter Harris <https://github.com/codeanimal>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+interface NodeBuffer { }
+
+declare module "radius" {
+    /**
+     * {@link https://github.com/retailnext/node-radius#radiusdecodeargs} for more info.
+     **/
+    export function decode(args: DecodeArgsWithSecret): RadiusPacket;
+
+    /**
+     * {@link https://github.com/retailnext/node-radius#radiusdecode_without_secretargs} for more info.
+     **/
+    export function decode_without_secret(args: DecodeArgs): RadiusPacket;
+
+    /**
+     * {@link https://github.com/retailnext/node-radius#radiusencodeargs} for more info.
+     **/
+    export function encode(args: EncodeArgs): NodeBuffer;
+
+    /**
+     * {@link https://github.com/retailnext/node-radius#radiusencode_responseargs} for more info.
+     **/
+    export function encode_response(args: EncodeResponseArgs): NodeBuffer;
+
+    /**
+     * {@link https://github.com/retailnext/node-radius#radiusverify_responseargs} for more info.
+     **/
+    export function verify_response(args: VerifyResponseArgs):boolean;
+
+    /**
+     * {@link https://github.com/retailnext/node-radius#radiusadd_dictionarypath} for more info.
+     * 
+     * @param path Can be either a path to a file or a directory.
+     **/
+    export function add_dictionary(path:string): void;
+
+    export function unload_dictionaries(): void;
+
+
+
+
+
+
+    /**
+     * {@link https://github.com/retailnext/node-radius#radiusdecode_without_secretargs} for more info.
+     **/
+    interface DecodeArgs {
+        packet: NodeBuffer;
+    }
+
+    /**
+     * {@link https://github.com/retailnext/node-radius#radiusdecodeargs} for more info.
+     **/
+    interface DecodeArgsWithSecret extends DecodeArgs {
+        secret: string;
+    }
+
+    /**
+     * {@link https://github.com/retailnext/node-radius#radiusencodeargs} for more info.
+     **/
+    interface EncodeArgs {
+        code: string;
+        secret: string;
+        identifier?: number;
+        /**
+         * This can be an object: { attribute_name: attribute_value, ... }, 
+         * an array within an array: [ [ attribute_name, attribute_value ], ... ],
+         * or if you haven't loaded a dictionary for the attributes: [ [ attribute_id, Buffer ], ... ].
+         * 
+         * Tag field-attributes can be specified like so: [ [ attribute_name, tag_number, attribute_value ] ... ]
+         **/
+        attributes?: any;
+        add_message_authenticator?: boolean;
+    }
+
+    /**
+     * {@link https://github.com/retailnext/node-radius#radiusencode_responseargs} for more info.
+     **/
+    interface EncodeResponseArgs {
+        packet: RadiusPacket;
+        code: string;
+        secret: string;
+        attributes?: any;
+    }
+
+    /**
+     * {@link https://github.com/retailnext/node-radius#radiusverify_responseargs} for more info.
+     **/
+    interface VerifyResponseArgs {
+        request: NodeBuffer;
+        response: NodeBuffer;
+        secret: string;
+    }
+
+    interface RadiusPacket {
+        code: string;
+        identifier: number;
+        length: number;
+        attributes: any;
+        raw_attributes: Array<Array<any>>
+    }
+}
\ No newline at end of file