diff --git a/server/web3admin/be/metadata/Contract.js b/server/web3admin/be/metadata/Contract.js
new file mode 100644
index 0000000..a347a12
--- /dev/null
+++ b/server/web3admin/be/metadata/Contract.js
@@ -0,0 +1,8 @@
+const utils = require('j7/utils');
+const basewrap = require('./basewrap');
+
+class Contract extends basewrap.BaseWrap {
+
+}
+
+module.exports = Contract;
diff --git a/server/web3admin/be/metadata/Web3.js b/server/web3admin/be/metadata/Web3.js
new file mode 100644
index 0000000..c2193ad
--- /dev/null
+++ b/server/web3admin/be/metadata/Web3.js
@@ -0,0 +1,8 @@
+const utils = require('j7/utils');
+const basewrap = require('./basewrap');
+
+class Web3 extends basewrap.BaseWrap {
+
+}
+
+module.exports = Web3;
diff --git a/server/web3admin/be/metadata/factory.js b/server/web3admin/be/metadata/factory.js
index 6b7f285..894692c 100644
--- a/server/web3admin/be/metadata/factory.js
+++ b/server/web3admin/be/metadata/factory.js
@@ -83,14 +83,23 @@ function init() {
   }
   resDir = '/data/conf/webadmin2006/';
 
-  registerMetaClass(configDir + 'marketdb_mysql.json',
-                    '',
-                    'MarketDb'
-                   );
   registerMetaClass(configDir + 'config.json',
                     '',
                     'Config'
                    );
+  registerMetaClass(configDir + 'web3.json',
+                    '',
+                    'Web3'
+                   );
+  registerMetaClass(configDir + 'contract.json',
+                    '',
+                    'Contract'
+                   );
+
+  registerMetaClass(configDir + 'marketdb_mysql.json',
+                    '',
+                    'MarketDb'
+                   );
   load();
  }