diff --git a/bamboosdk/__init__.py b/bamboosdk/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/bamboosdk/api/__init__.py b/bamboosdk/api/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/bamboosdk/api/api_base.py b/bamboosdk/api/api_base.py
new file mode 100644
index 00000000..4b0adf55
--- /dev/null
+++ b/bamboosdk/api/api_base.py
@@ -0,0 +1,66 @@
+import requests
+import base64
+import json
+from bamboosdk.exceptions import *
+
+class ApiBase:
+    """
+    Base class for all API classes
+    """
+    API_BASE_URL = 'https://api.bamboohr.com/api/gateway.php/{}'
+
+    def __init__(self) -> None:
+        self.__api_token = None
+        self.__sub_domain = None
+    
+    def post_request(self, module_api_path):
+        """
+        HTTP post method to send data to BambooHR API URL
+
+        Parameters:
+            payload (dict): Data to be sent to Bamboo API
+            module_api_path (str): URL of BambooHR API
+        """
+
+        headers = {
+            "content-type": "application/json",
+            "authorization": f"Basic {self.__encode_username_password()}"
+        }   
+
+        payload = { "fields": ["displayName", "firstName", "lastName", "department", "workEmail", "supervisorEmail", "status"] }
+        
+        url= self.API_BASE_URL.format(self.__sub_domain) + module_api_path
+        response = requests.post(url=url, json=payload, headers=headers)
+        if response.status_code == 200:
+            result = json.loads(response.text)
+            return result
+
+        if response.status_code == 403:
+            error_msg = json.loads(response.text)
+            raise NoPrivilegeError('Forbidden, the user has insufficient privilege', error_msg)
+
+        if response.status_code == 404:
+            error_msg = json.loads(response.text)
+            raise NotFoundItemError('Not found item with ID', error_msg)
+
+        if response.status_code == 401:
+            error_msg = 'The api token is invalid'
+            raise InvalidTokenError('Invalid token, try to refresh it', error_msg)
+        
+    
+    def __encode_username_password(self):
+        """
+        Utility method to be used in the header for authorization
+        converts the api token and password to base64
+        """
+
+        payload = f'{self.__api_token}:a'
+        payload = payload.encode()
+
+        return base64.b64encode(payload).decode()
+
+    def set_api_token(self, api_token):
+        self.__api_token = api_token
+    
+    def set_sub_domain(self, sub_domain):
+        self.__sub_domain = sub_domain
diff --git a/bamboosdk/exceptions.py b/bamboosdk/exceptions.py
new file mode 100644
index 00000000..59a6a262
--- /dev/null
+++ b/bamboosdk/exceptions.py
@@ -0,0 +1,27 @@
+"""
+BambooHR SDK exceptions
+"""
+
+
+class BambooHrSDKError(Exception):
+    """
+    The base exception class for BambooHR SDK
+    """
+
+    def __init__(self, msg, response=None):
+        super(BambooHrSDKError, self).__init__(msg)
+        self.message = msg
+        self.response = response
+
+    def __str__(self):
+        return repr(self.message)
+
+
+class NoPrivilegeError(BambooHrSDKError):
+    """The user has insufficient privilege, 403 error."""
+
+class NotFoundItemError(BambooHrSDKError):
+    """Not found the item from URL, 404 error."""
+
+class InvalidTokenError(BambooHrSDKError):
+    """Invalid or non-existing access token, 401 error"""