diff --git a/token-scanner-api/.env.example b/token-scanner-api/.env.example
index 5a043c5..b5de4d6 100644
--- a/token-scanner-api/.env.example
+++ b/token-scanner-api/.env.example
@@ -27,7 +27,10 @@ OUTPUT_DIR = ./output
 #########################
 ##### mongodb settings
 #########################
-MONGDB_URI = mongodb://localhost:27017
+
+## locally: mongodb://localhost:27017
+## production: mongodb://user:password@host:port
+MONGODB_URI = mongodb://localhost:27017
 MONGODB_DB_NAME = balances
 MONGODB_COLLECTION_NAME = balances
 
@@ -35,5 +38,8 @@ MONGODB_COLLECTION_NAME = balances
 #########################
 ##### api settings
 #########################
+
+## locally: http://localhost:80
+## production: http://host:port
 API_HOST_URL = http://localhost
 API_HOST_URL_PORT = 80