diff --git a/index.d.ts b/index.d.ts
new file mode 100644
index 0000000..98518dd
--- /dev/null
+++ b/index.d.ts
@@ -0,0 +1,19 @@
+export = Credstash;
+
+declare class Credstash {
+  list(options: Credstash.IOptions, callback: Credstash.Callback<string[]>): void;
+  list(callback: Credstash.Callback<string[]>): void;
+
+  get(value: string, options: Credstash.IOptions, callback: Credstash.Callback<string>): void;
+  get(value: string, callback: Credstash.Callback<string>): void;
+}
+
+declare namespace Credstash {
+  type Callback<T> = (err: Error | null, response: T) => void;
+
+  interface IOptions {
+    limit?: number,
+    region?: string,
+    table?: string
+  }
+}
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index e601063..bdc3274 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "@pizza-hut/credstash",
-  "version": "1.3.0",
+  "version": "1.3.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 613a9aa..6238838 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@pizza-hut/credstash",
-  "version": "1.3.0",
+  "version": "1.3.1",
   "description": "Module for reading credstash secrets",
   "main": "index.js",
   "scripts": {