diff --git a/js/src/api/rpc/ethcore/ethcore.js b/js/src/api/rpc/ethcore/ethcore.js
index 1ccc95bba..b9dec3b69 100644
--- a/js/src/api/rpc/ethcore/ethcore.js
+++ b/js/src/api/rpc/ethcore/ethcore.js
@@ -32,6 +32,12 @@ export default class Ethcore {
       .execute('ethcore_addReservedPeer', encode);
   }
 
+  dappsPort () {
+    return this._transport
+      .execute('ethcore_dappsPort')
+      .then(outNumber);
+  }
+
   defaultExtraData () {
     return this._transport
       .execute('ethcore_defaultExtraData');
@@ -154,6 +160,12 @@ export default class Ethcore {
       .execute('ethcore_setTransactionsLimit', inNumber16(quantity));
   }
 
+  signerPort () {
+    return this._transport
+      .execute('ethcore_signerPort')
+      .then(outNumber);
+  }
+
   transactionsLimit () {
     return this._transport
       .execute('ethcore_transactionsLimit')
diff --git a/js/src/jsonrpc/interfaces/ethcore.js b/js/src/jsonrpc/interfaces/ethcore.js
index 5b2910618..4ebff1952 100644
--- a/js/src/jsonrpc/interfaces/ethcore.js
+++ b/js/src/jsonrpc/interfaces/ethcore.js
@@ -40,6 +40,15 @@ export default {
     }
   },
 
+  dappsPort: {
+    desc: 'Returns the port the dapps are running on, error if not enabled',
+    params: [],
+    returns: {
+      type: Quantity,
+      desc: 'The port number'
+    }
+  },
+
   defaultExtraData: {
     desc: 'Returns the default extra data',
     params: [],
@@ -294,6 +303,15 @@ export default {
     }
   },
 
+  signerPort: {
+    desc: 'Returns the port the signer is running on, error if not enabled',
+    params: [],
+    returns: {
+      type: Quantity,
+      desc: 'The port number'
+    }
+  },
+
   transactionsLimit: {
     desc: 'Changes limit for transactions in queue.',
     params: [],