diff --git a/README.md b/README.md
index 38d8079..ed3bfa2 100644
--- a/README.md
+++ b/README.md
@@ -19,6 +19,9 @@ For example by browsing http://localhost:8080/ after starting `pydoc -p 8080`.
 * args.py:  
 Extends argparse by new input argument data types on demand.
 
+* avelon.py:  
+This library interacts with the Avelon Cloud API.
+
 * base.py:  
 Provides very common every-day functions.
 
diff --git a/avelon.py b/avelon.py
new file mode 100644
index 0000000..086b630
--- /dev/null
+++ b/avelon.py
@@ -0,0 +1,187 @@
+#! /usr/bin/env python3
+# -*- coding: utf-8; py-indent-offset: 4 -*-
+#
+# Author:  Linuxfabrik GmbH, Zurich, Switzerland
+# Contact: info (at) linuxfabrik (dot) ch
+#          https://www.linuxfabrik.ch/
+# License: The Unlicense, see LICENSE file.
+
+# https://github.com/Linuxfabrik/monitoring-plugins/blob/main/CONTRIBUTING.rst
+
+"""Provides functions using the Avelon Cloud REST-API.
+"""
+
+__author__ = 'Linuxfabrik GmbH, Zurich/Switzerland'
+__version__ = '2024072401'
+
+import concurrent.futures
+import json
+import lib.url
+
+BASE_URL = 'https://avelon.cloud'
+
+
+def get_token(client_id, client_secret, username, password, insecure=False, no_proxy=False, timeout=8):
+    uri = '{}/oauth/token'.format(
+        BASE_URL
+        )
+    header = {
+        "Content-Type": "application/x-www-form-urlencoded"
+    }
+    data = {
+        "client_id": client_id,
+        "client_secret": client_secret,
+        "grant_type": "password",
+        "username": username,
+        "password": password
+    }
+    success, token = lib.url.fetch_json(
+        uri,
+        header=header,
+        data=data,
+        extended=True,
+        insecure=insecure,
+        no_proxy=no_proxy,
+        timeout=timeout,
+    )
+
+    if not success:
+        return (success, token)
+    return (True, token['response_json'])
+
+
+def get_tickets(access_token, insecure=False, no_proxy=False, timeout=8):
+    success, devices = _get_devices(access_token, insecure, no_proxy, timeout)
+    if not success:
+        return (success, devices)
+    
+    tickets_response = []
+
+    for device in devices:
+        tickets_response.extend(_get_ticket_info(access_token, device['clientId'], insecure, no_proxy, timeout))
+    
+    return tickets_response
+
+
+def get_data_points(access_token, data_point_id=None, data_point_name=None, insecure=False, no_proxy=False, timeout=8):
+    success, devices = _get_devices(access_token, insecure, no_proxy, timeout)
+    if not success:
+        return (success, devices)
+    
+    data_points_info = []
+    data_points_value = []
+    data_points_response = []
+
+    for device in devices:
+        success, data_point_info = _get_data_point_info(access_token, device['id'], insecure, no_proxy, timeout)
+        data_points_info.extend(data_point_info)
+
+    with concurrent.futures.ThreadPoolExecutor() as executor:
+        future_to_data_point = {
+            executor.submit(_get_data_point_value, access_token, data_point['id'], insecure, no_proxy, timeout): data_point
+            for data_point in data_points_info
+            if (not data_point_id and not data_point_name) or 
+               (data_point_id and data_point['id'] in data_point_id) or 
+               (data_point_name and data_point['systemName'] in data_point_name)
+        }
+
+        for future in concurrent.futures.as_completed(future_to_data_point):
+            data_point = future_to_data_point[future]
+            success, data_points_value = future.result()
+            if data_points_value and success == True:
+                data_points_response.append({**data_point, **data_points_value[0]})
+                
+    return (True, data_points_response)
+
+
+def _get_devices(access_token, insecure, no_proxy, timeout):
+    uri = '{}/public-api/v1/devices'.format(
+        BASE_URL
+        )
+    header = {
+        "Authorization": f"Bearer {access_token}",
+        "Content-Type": "application/json"
+    }
+    success, devices = lib.url.fetch_json(
+        uri,
+        header=header,
+        extended=True,
+        insecure=insecure,
+        no_proxy=no_proxy,
+        timeout=timeout,
+    )
+
+    if not devices['response_json']:
+        return (False, 'No devices found. Check if devices under this '
+                       'mandate are present in avelon.cloud.')
+    return (True, devices['response_json'])
+
+
+def _get_ticket_info(access_token, client_id, insecure, no_proxy, timeout):
+    uri = '{}/public-api/v1/tickets'.format(
+        BASE_URL
+        )
+    header = {
+        "Authorization": f"Bearer {access_token}",
+        "Content-Type": "application/json"
+    }
+    body = {
+        "filterScope": "CLIENT",
+        "id": client_id
+    }
+    success, tickets = lib.url.fetch_json(
+        uri,
+        header=header,
+        data = body,
+        extended=True,
+        insecure=insecure,
+        no_proxy=no_proxy,
+        timeout=timeout,
+        encoding = 'serialized-json',
+    )
+    
+    return (True, tickets['response_json'])
+
+
+def _get_data_point_info(access_token, device_id, insecure, no_proxy, timeout):
+    uri = '{}/public-api/v1/data-points?deviceIds={}'.format(
+        BASE_URL,
+        device_id
+        )
+    header ={
+        "Authorization": f"Bearer {access_token}",
+        "Content-Type": "application/json"
+    }
+    success, data_point_info = lib.url.fetch_json(
+        uri,
+        header=header,
+        extended=True,
+        insecure=insecure,
+        no_proxy=no_proxy,
+        timeout=timeout,
+    )
+
+    return (True, data_point_info['response_json'])
+
+
+def _get_data_point_value(access_token, data_point_id, insecure, no_proxy, timeout):
+    uri = '{}/public-api/v1/data-points/{}/records/latest?limit=1'.format(
+        BASE_URL,
+        data_point_id
+        )
+    header = {
+        "Authorization": f"Bearer {access_token}",
+        "Content-Type": "application/json"
+    }
+    success, data_point_value = lib.url.fetch_json(
+        uri,
+        header=header,
+        extended=True,
+        insecure=insecure,
+        no_proxy=no_proxy,
+        timeout=timeout,
+    )
+    
+    if not success:
+        return (success, data_point_value)
+    return (True, data_point_value['response_json'])
\ No newline at end of file