diff --git a/TopSpace/Login.js b/TopSpace/Login.js
index 39013d97f..e39f74229 100644
--- a/TopSpace/Login.js
+++ b/TopSpace/Login.js
@@ -21,8 +21,6 @@ function newLogin() {
     container.isDraggeable = false;
     container.isClickeable = true;
 
-    const MASTER_APP_API = 'https://app-api.advancedalgos.net/graphql';
-
     let currentLabel;
 
     let userAuthorization;
@@ -52,7 +50,7 @@ function newLogin() {
 
         const apolloClient = new Apollo.lib.ApolloClient({
             networkInterface: Apollo.lib.createNetworkInterface({
-                uri: MASTER_APP_API,
+                uri: window.canvasApp.graphQL.masterAppApiUrl,
                 transportBatching: true,
             }),
             connectToDevTools: true,
@@ -104,7 +102,7 @@ function newLogin() {
             }   
 
             const networkInterfaceTeams = Apollo.lib.createNetworkInterface({
-                uri: MASTER_APP_API
+                uri: window.canvasApp.graphQL.masterAppApiUrl
             });
 
             networkInterfaceTeams.use([{
diff --git a/index.html b/index.html
index 0c711fc40..3fcfe9890 100644
--- a/index.html
+++ b/index.html
@@ -16,7 +16,10 @@
         executingAt: 'Master App',
         visible: true,
         topMargin: 85,
-        urlPrefix: 'http://localhost:1337/'   /* 'http://localhost:1337/'   */   /*  'https://develop.advancedalgos.net/'  */
+        urlPrefix: 'http://localhost:1337/',   /* 'http://localhost:1337/'   */   /*  'https://develop.advancedalgos.net/'  */
+        graphQL: {
+            masterAppApiUrl: 'https://app-api.advancedalgos.net/graphql'
+        }
     };
 
     loadAdvancedAlgosPlatform();