diff --git a/index.d.ts b/index.d.ts
index 9158719..a49a55c 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -454,10 +454,16 @@ declare namespace Connex {
 
     interface Vendor {
         /**
-         *  Acquire the signing service
+         * Acquire the signing service
          * @param kind kind of target to be signed
          */
         sign<T extends 'tx' | 'cert'>(kind: T): Vendor.SigningService<T>
+
+        /**
+         * Returns whether an address is owned by user
+         * @param addr account address
+         */
+        owned(addr: string): boolean
     }
 
     namespace Vendor {
diff --git a/package.json b/package.json
index 9139b86..d975475 100644
--- a/package.json
+++ b/package.json
@@ -1,10 +1,9 @@
 {
   "name": "@vechain/connex",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "description": "Standard interface to connect DApp with VeChain and user",
   "main": "",
-  "scripts": {
-  },
+  "scripts": {},
   "repository": {
     "type": "git",
     "url": "git+https://github.com/vechain/connex.git"