diff --git a/application/controllers/api/v1/Unavailabilities_api_v1.php b/application/controllers/api/v1/Unavailabilities_api_v1.php
index 016c196435..783a0a2cb7 100644
--- a/application/controllers/api/v1/Unavailabilities_api_v1.php
+++ b/application/controllers/api/v1/Unavailabilities_api_v1.php
@@ -50,8 +50,42 @@ public function index(): void
 
             $with = $this->api->request_with();
 
+            $where = null;
+
+            // Date query param.
+
+            $date = request('date');
+
+            if (!empty($date)) {
+                $where['DATE(start_datetime)'] = (new DateTime($date))->format('Y-m-d');
+            }
+
+            // From query param.
+
+            $from = request('from');
+
+            if (!empty($from)) {
+                $where['DATE(start_datetime) >='] = (new DateTime($from))->format('Y-m-d');
+            }
+
+            // Till query param.
+
+            $till = request('till');
+
+            if (!empty($till)) {
+                $where['DATE(end_datetime) <='] = (new DateTime($till))->format('Y-m-d');
+            }
+
+            // Provider ID query param.
+
+            $provider_id = request('providerId');
+
+            if (!empty($provider_id)) {
+                $where['id_users_provider'] = $provider_id;
+            }
+
             $unavailabilities = empty($keyword)
-                ? $this->unavailabilities_model->get(null, $limit, $offset, $order_by)
+                ? $this->unavailabilities_model->get($where, $limit, $offset, $order_by)
                 : $this->unavailabilities_model->search($keyword, $limit, $offset, $order_by);
 
             foreach ($unavailabilities as &$unavailability) {
diff --git a/application/models/Appointments_model.php b/application/models/Appointments_model.php
index 6c4644c14e..ef04e7f22d 100644
--- a/application/models/Appointments_model.php
+++ b/application/models/Appointments_model.php
@@ -616,6 +616,10 @@ public function api_decode(array &$appointment, array $base = null): void
             $decoded_request['id_services'] = $appointment['serviceId'];
         }
 
+        if (array_key_exists('color', $appointment)) {
+            $decoded_request['color'] = $appointment['color'];
+        }
+
         if (array_key_exists('googleCalendarId', $appointment)) {
             $decoded_request['id_google_calendar'] = $appointment['googleCalendarId'];
         }
diff --git a/application/models/Services_model.php b/application/models/Services_model.php
index e8191cf136..3662484387 100644
--- a/application/models/Services_model.php
+++ b/application/models/Services_model.php
@@ -413,6 +413,7 @@ public function api_encode(array &$service): void
             'duration' => (int) $service['duration'],
             'price' => (float) $service['price'],
             'currency' => $service['currency'],
+            'color' => $service['color'],
             'description' => $service['description'],
             'location' => $service['location'],
             'availabilitiesType' => $service['availabilities_type'],
@@ -455,6 +456,10 @@ public function api_decode(array &$service, array $base = null): void
             $decoded_resource['currency'] = $service['currency'];
         }
 
+        if (array_key_exists('color', $service)) {
+            $decoded_resource['color'] = $service['color'];
+        }
+
         if (array_key_exists('description', $service)) {
             $decoded_resource['description'] = $service['description'];
         }
diff --git a/application/models/Unavailabilities_model.php b/application/models/Unavailabilities_model.php
index 86ad425320..8c79b4396f 100644
--- a/application/models/Unavailabilities_model.php
+++ b/application/models/Unavailabilities_model.php
@@ -7,7 +7,7 @@
  * @author      A.Tselegidis <alextselegidis@gmail.com>
  * @copyright   Copyright (c) Alex Tselegidis
  * @license     https://opensource.org/licenses/GPL-3.0 - GPLv3
- * @link        http://easyunavailabilities.org
+ * @link        https://easyappointments.org
  * @since       v1.0.0
  * ---------------------------------------------------------------------------- */
 
diff --git a/openapi.yml b/openapi.yml
index d5916fba49..a39d81edce 100644
--- a/openapi.yml
+++ b/openapi.yml
@@ -2022,6 +2022,8 @@ components:
           format: float
         currency:
           type: string
+        color:
+          type: string
         location:
           type: string
         description:
@@ -2040,6 +2042,7 @@ components:
         duration: 30
         price: 10
         currency: USD
+        color: '#123456'
         location: Test Street 1A, 12345 Some State, Some Place
         description: This is a test service.
         availabilitiesType: flexible
@@ -2057,6 +2060,8 @@ components:
           type: number
         currency:
           type: string
+        color:
+          type: string
         location:
           type: string
         description:
@@ -2074,6 +2079,7 @@ components:
         duration: 30
         price: 10
         currency: USD
+        color: '#123456'
         location: Test Street 1A, 12345 Some State, Some Place
         description: This is a test service.
         availabilitiesType: flexible