diff --git a/src/Tribe.ts b/src/Tribe.ts
new file mode 100644
index 0000000..8e296e1
--- /dev/null
+++ b/src/Tribe.ts
@@ -0,0 +1,30 @@
+import Web3Helper from "./keeper/Web3Helper";
+
+export default class Tribe {
+
+    public static getInstance(web3Helper: Web3Helper) {
+
+        return new Tribe(web3Helper);
+    }
+
+    private web3Helper: Web3Helper;
+
+    private constructor(web3Helper: Web3Helper) {
+
+        this.web3Helper = web3Helper;
+    }
+
+    // did ddo for tribes/marketplaces
+    public registerTribe() {
+        return "";
+    }
+
+    public tribessList() {
+        return "";
+    }
+
+    public resolveTribeDID() {
+        // verify DDO
+        return "DDO";
+    }
+}
diff --git a/src/tribe.js b/src/tribe.js
deleted file mode 100644
index 995609b..0000000
--- a/src/tribe.js
+++ /dev/null
@@ -1,25 +0,0 @@
-import KeeperBase from './keeper/keeper-base'
-
-export default class Tribe extends KeeperBase {
-    constructor(web3Helper) {
-        super(web3Helper)
-
-        return (async () => {
-            return this
-        })()
-    }
-
-    // did ddo for tribes/marketplaces
-    registerTribe() {
-        return ''
-    }
-
-    tribessList() {
-        return ''
-    }
-
-    resolveTribeDID() {
-        // verify DDO
-        return 'DDO'
-    }
-}