diff --git a/src/graphql/schema.ts b/src/graphql/schema.ts
index b329b54..21e8eed 100644
--- a/src/graphql/schema.ts
+++ b/src/graphql/schema.ts
@@ -83,8 +83,16 @@ export const resolvers = {
   JSON: GraphQLJSONObject,
   Query: {
     health: () => 'ok',
-    places: () => listPlaces(),
-    voiceExperiences: () => listVoiceExperiences(),
+    places: async (_: unknown, __: unknown, context: unknown) => {
+      const graphqlContext = context as GraphqlContext;
+      await requireTelegramUser(graphqlContext.telegramInitData);
+      return listPlaces();
+    },
+    voiceExperiences: async (_: unknown, __: unknown, context: unknown) => {
+      const graphqlContext = context as GraphqlContext;
+      await requireTelegramUser(graphqlContext.telegramInitData);
+      return listVoiceExperiences();
+    },
   },
   Mutation: {
     authenticateTelegram: async (