diff --git a/docu/login_server.api.md b/docu/login_server.api.md
index 5cf44c422..025e04094 100644
--- a/docu/login_server.api.md
+++ b/docu/login_server.api.md
@@ -60,7 +60,7 @@ In case of success returns:
 		"public_hex": "131c7f68dd94b2be4c913400ff7ff4cdc03ac2bda99c2d29edcacb3b065c67e6",
 		"role": "none",
 		"username": ""
-	}
+	},
 	"session_id": -127182,
 	"clientIP":"123.123.123.123"
 }
@@ -235,6 +235,7 @@ with:
 		"user.last_name",
 		"user.disabled",
 		"user.email_checked",
+		"user.language"
   	]
 }
 ```
@@ -269,6 +270,7 @@ Return only the fields which are defined in request
 - `user.disabled`: User will be disabled if he wants a account delete but has transactions. Until transactions are saved in real blockchain, we need this data because the public key
 is in db only saved in state_users so if we delete this entry, validating all transactions is no longer possible. Disabled User cannot login and cannot receive transactions. 
 - `email_checked`: If user has clicked on link in verification email (register), can only transfer gradidos if email_checked is 1
+- `language`: Language Key for User, currently 'de' or 'en'
 - `errors`: array of strings if error occure 
 
 ## Login by Email Verification Code
@@ -302,7 +304,7 @@ In case of success returns:
 		"public_hex": "131c7f68dd94b2be4c913400ff7ff4cdc03ac2bda99c2d29edcacb3b065c67e6",
 		"role": "none",
 		"username": ""
-	}
+	},
 	"session_id":1853761475
 }
 ```
@@ -491,4 +493,4 @@ or:
 	"state":"not found",
 	"msg": "session not found"
 }
-```
\ No newline at end of file
+```
diff --git a/login_server/src/cpp/JSONInterface/JsonGetUserInfos.cpp b/login_server/src/cpp/JSONInterface/JsonGetUserInfos.cpp
index 7f13c7d29..2b1f229de 100644
--- a/login_server/src/cpp/JSONInterface/JsonGetUserInfos.cpp
+++ b/login_server/src/cpp/JSONInterface/JsonGetUserInfos.cpp
@@ -131,6 +131,9 @@ Poco::JSON::Object* JsonGetUserInfos::handle(Poco::Dynamic::Var params)
 				auto email = user_model->getEmail();
 				jsonUser.set("identHash", DRMakeStringHash(email.data(), email.size()));
 			}
+			else if (parameterString == "user.language") {
+				jsonUser.set("language", user_model->getLanguageKey());
+			}
 		}
 		catch (Poco::Exception& ex) {
 			jsonErrorsArray.add("ask parameter invalid");