diff --git a/api/app.py b/api/app.py
index 3314930..28fe3e9 100644
--- a/api/app.py
+++ b/api/app.py
@@ -1,3 +1,9 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
+
 from app import create_app
 
 # Create an application instance that web servers can use.
diff --git a/api/app/__init__.py b/api/app/__init__.py
index 8040125..30822d3 100644
--- a/api/app/__init__.py
+++ b/api/app/__init__.py
@@ -1,3 +1,9 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
+
 from flask import current_app
 from apiflask import APIFlask
 
diff --git a/api/app/auth.py b/api/app/auth.py
index 513a889..e96d28a 100644
--- a/api/app/auth.py
+++ b/api/app/auth.py
@@ -1,3 +1,9 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
+
 from flask import current_app
 
 import jwt
diff --git a/api/app/blueprints/__init__.py b/api/app/blueprints/__init__.py
index e69de29..dfaac6b 100644
--- a/api/app/blueprints/__init__.py
+++ b/api/app/blueprints/__init__.py
@@ -0,0 +1,5 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
diff --git a/api/app/blueprints/keyword.py b/api/app/blueprints/keyword.py
index cd00c53..4412621 100644
--- a/api/app/blueprints/keyword.py
+++ b/api/app/blueprints/keyword.py
@@ -1,3 +1,9 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
+
 import os
 
 from apiflask import APIBlueprint, abort
diff --git a/api/app/blueprints/portfolio.py b/api/app/blueprints/portfolio.py
index e5eb5fb..2b6ab02 100644
--- a/api/app/blueprints/portfolio.py
+++ b/api/app/blueprints/portfolio.py
@@ -1,3 +1,9 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
+
 import os
 
 from apiflask import APIBlueprint
diff --git a/api/app/blueprints/share_price.py b/api/app/blueprints/share_price.py
index c313cda..aa2a302 100644
--- a/api/app/blueprints/share_price.py
+++ b/api/app/blueprints/share_price.py
@@ -1,3 +1,9 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
+
 import datetime
 import os
 
diff --git a/api/app/blueprints/shares.py b/api/app/blueprints/shares.py
index 24656a1..56dad69 100644
--- a/api/app/blueprints/shares.py
+++ b/api/app/blueprints/shares.py
@@ -1,3 +1,9 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
+
 import os
 
 from apiflask import APIBlueprint, abort
diff --git a/api/app/blueprints/telegram.py b/api/app/blueprints/telegram.py
index c96e923..10aad9f 100644
--- a/api/app/blueprints/telegram.py
+++ b/api/app/blueprints/telegram.py
@@ -1,3 +1,9 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
+
 import os
 
 from apiflask import APIBlueprint, abort
diff --git a/api/app/blueprints/transactions.py b/api/app/blueprints/transactions.py
index 71c856a..da3b7bf 100644
--- a/api/app/blueprints/transactions.py
+++ b/api/app/blueprints/transactions.py
@@ -1,3 +1,9 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
+
 import datetime
 import os
 
diff --git a/api/app/blueprints/user.py b/api/app/blueprints/user.py
index a570883..196af26 100644
--- a/api/app/blueprints/user.py
+++ b/api/app/blueprints/user.py
@@ -1,3 +1,9 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
+
 import datetime
 import os
 
diff --git a/api/app/config/flask.cfg b/api/app/config/flask.cfg
index 25babd4..2fec222 100644
--- a/api/app/config/flask.cfg
+++ b/api/app/config/flask.cfg
@@ -1,3 +1,9 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
+
 import os
 from app.schema import BaseResponseSchema
 
diff --git a/api/app/config/flask_test.cfg b/api/app/config/flask_test.cfg
index 2cc085b..fc8ac7f 100644
--- a/api/app/config/flask_test.cfg
+++ b/api/app/config/flask_test.cfg
@@ -1,3 +1,9 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
+
 import os
 from app.schema import BaseResponseSchema
 
diff --git a/api/app/db.py b/api/app/db.py
index d09ee30..22b1d85 100644
--- a/api/app/db.py
+++ b/api/app/db.py
@@ -1,3 +1,9 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
+
 from flask_sqlalchemy import SQLAlchemy
 
 # database object
diff --git a/api/app/helper_functions.py b/api/app/helper_functions.py
index ee90298..d3edea3 100644
--- a/api/app/helper_functions.py
+++ b/api/app/helper_functions.py
@@ -1,3 +1,9 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
+
 import bcrypt
 import jwt
 from apiflask import abort
diff --git a/api/app/models.py b/api/app/models.py
index 7889271..864ce32 100644
--- a/api/app/models.py
+++ b/api/app/models.py
@@ -1,3 +1,9 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
+
 from app.db import database as db
 
 
diff --git a/api/app/schema.py b/api/app/schema.py
index 7caad63..f48f232 100644
--- a/api/app/schema.py
+++ b/api/app/schema.py
@@ -1,3 +1,9 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
+
 from apiflask import Schema
 from apiflask.fields import Integer, String, Boolean, Field, Float
 from marshmallow import validate
diff --git a/api/generate_sample_transactions.py b/api/generate_sample_transactions.py
index 8ef4542..3c28db4 100644
--- a/api/generate_sample_transactions.py
+++ b/api/generate_sample_transactions.py
@@ -1,3 +1,9 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
+
 import os
 import random
 
diff --git a/api/load_share_price.py b/api/load_share_price.py
index e0e9ea7..bd77ee4 100644
--- a/api/load_share_price.py
+++ b/api/load_share_price.py
@@ -1,3 +1,9 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
+
 import datetime
 import os
 import threading
diff --git a/api/tests/conftest.py b/api/tests/conftest.py
index e1f32fc..be4933c 100644
--- a/api/tests/conftest.py
+++ b/api/tests/conftest.py
@@ -1,3 +1,9 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
+
 import pytest
 from app import create_app, db
 from app.models import User, Transaction, Keyword, Share
diff --git a/api/tests/functional/__init__.py b/api/tests/functional/__init__.py
index e69de29..dfaac6b 100644
--- a/api/tests/functional/__init__.py
+++ b/api/tests/functional/__init__.py
@@ -0,0 +1,5 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
diff --git a/api/tests/functional/helper_functions.py b/api/tests/functional/helper_functions.py
index 2b88442..8c93f71 100644
--- a/api/tests/functional/helper_functions.py
+++ b/api/tests/functional/helper_functions.py
@@ -1,3 +1,9 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
+
 import json
 
 
diff --git a/api/tests/functional/test_keyword.py b/api/tests/functional/test_keyword.py
index 3517c18..3ce610d 100644
--- a/api/tests/functional/test_keyword.py
+++ b/api/tests/functional/test_keyword.py
@@ -1,3 +1,9 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
+
 """
 This file (test_keyword.py) contains the functional tests for the `keyword` blueprint.
 """
diff --git a/api/tests/functional/test_portfolio.py b/api/tests/functional/test_portfolio.py
index f240c93..b2278ba 100644
--- a/api/tests/functional/test_portfolio.py
+++ b/api/tests/functional/test_portfolio.py
@@ -1,3 +1,9 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
+
 """
 This file (test_portfolio.py) contains the functional tests for the `portfolio` blueprint.
 """
diff --git a/api/tests/functional/test_share.py b/api/tests/functional/test_share.py
index 8df2ced..875bc0b 100644
--- a/api/tests/functional/test_share.py
+++ b/api/tests/functional/test_share.py
@@ -1,3 +1,9 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
+
 """
 This file (test_share.py) contains the functional tests for the `share` blueprint.
 """
diff --git a/api/tests/functional/test_telegram.py b/api/tests/functional/test_telegram.py
index 34acee7..17679df 100644
--- a/api/tests/functional/test_telegram.py
+++ b/api/tests/functional/test_telegram.py
@@ -1,3 +1,9 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
+
 """
 This file (test_telegram.py) contains the functional tests for the `telegram` blueprint.
 """
diff --git a/api/tests/functional/test_transaction.py b/api/tests/functional/test_transaction.py
index cb7b9ad..2f1917d 100644
--- a/api/tests/functional/test_transaction.py
+++ b/api/tests/functional/test_transaction.py
@@ -1,3 +1,9 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
+
 """
 This file (test_transaction.py) contains the functional tests for the `transaction` blueprint.
 """
diff --git a/api/tests/functional/test_user.py b/api/tests/functional/test_user.py
index 80fdaec..8b4c1eb 100644
--- a/api/tests/functional/test_user.py
+++ b/api/tests/functional/test_user.py
@@ -1,3 +1,9 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
+
 """
 This file (test_user.py) contains the functional tests for the `users` blueprint.
 """
diff --git a/api/tests/unit/__init__.py b/api/tests/unit/__init__.py
index e69de29..dfaac6b 100644
--- a/api/tests/unit/__init__.py
+++ b/api/tests/unit/__init__.py
@@ -0,0 +1,5 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
diff --git a/api/tests/unit/test_auth.py b/api/tests/unit/test_auth.py
index cf35577..110e7ae 100644
--- a/api/tests/unit/test_auth.py
+++ b/api/tests/unit/test_auth.py
@@ -1,3 +1,9 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
+
 """
 This file (test_helper_functions.py) contains the unit tests for the helper_functions.py file.
 """
diff --git a/api/tests/unit/test_helper_functions.py b/api/tests/unit/test_helper_functions.py
index ef84fc4..0c61bcf 100644
--- a/api/tests/unit/test_helper_functions.py
+++ b/api/tests/unit/test_helper_functions.py
@@ -1,3 +1,9 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
+
 """
 This file (test_helper_functions.py) contains the unit tests for the helper_functions.py file.
 """
diff --git a/api/tests/unit/test_models.py b/api/tests/unit/test_models.py
index 690b58a..57618a9 100644
--- a/api/tests/unit/test_models.py
+++ b/api/tests/unit/test_models.py
@@ -1,3 +1,9 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
+
 """
 This file (test_models.py) contains the unit tests for the models.py file.
 """
diff --git a/api/tests/unit/test_transaction.py b/api/tests/unit/test_transaction.py
index 66f51ae..91f8e25 100644
--- a/api/tests/unit/test_transaction.py
+++ b/api/tests/unit/test_transaction.py
@@ -1,3 +1,9 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
+
 """
 This file (test_transaction.py) contains the unit tests for the blueprints/transaction.py file.
 """
diff --git a/api/tests/unit/test_user.py b/api/tests/unit/test_user.py
index eb5706d..2846fe7 100644
--- a/api/tests/unit/test_user.py
+++ b/api/tests/unit/test_user.py
@@ -1,3 +1,9 @@
+__author__ = "Florian Kaiser"
+__copyright__ = "Copyright 2022, Project Aktienbot"
+__credits__ = ["Florian Kaiser", "Florian Kellermann", "Linus Eickhof", "Kevin Pauer"]
+__license__ = "GPL 3.0"
+__version__ = "1.0.0"
+
 """
 This file (test_helper_functions.py) contains the unit tests for the helper_functions.py file.
 """