diff --git a/lib/plugins.json b/lib/plugins.json
index e3e72c90a71..e8e9cddf445 100644
--- a/lib/plugins.json
+++ b/lib/plugins.json
@@ -446,7 +446,8 @@
             "solr"
         ],
         "smsgateway": [
-            "aws"
+            "aws",
+            "modica"
         ],
         "theme": [
             "boost",
diff --git a/sms/gateway/modica/classes/gateway.php b/sms/gateway/modica/classes/gateway.php
new file mode 100644
index 00000000000..247e6835aa4
--- /dev/null
+++ b/sms/gateway/modica/classes/gateway.php
@@ -0,0 +1,88 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+namespace smsgateway_modica;
+
+use core\http_client;
+use core_sms\manager;
+use core_sms\message;
+use GuzzleHttp\Exception\GuzzleException;
+
+/**
+ * Modica SMS gateway.
+ *
+ * @see https://confluence.modicagroup.com/display/DC/Mobile+Gateway+REST+API#MobileGatewayRESTAPI-Sendingtoasingledestination
+ * @package    smsgateway_modica
+ * @copyright  2025 Safat Shahin <safat.shahin@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class gateway extends \core_sms\gateway {
+
+    /**
+     * @var string MODICA_DEFAULT_API The default api gateway for modica.
+     */
+    public const MODICA_DEFAULT_API = 'https://api.modicagroup.com/rest/gateway/messages';
+
+    #[\Override]
+    public function send(
+        message $message,
+    ): message {
+        $recipientnumber = manager::format_number(
+            phonenumber: $message->recipientnumber,
+            countrycode: $this->config->countrycode ?? null,
+        );
+        $json = json_encode(
+            [
+                'destination' => $recipientnumber,
+                'content' => $message->content,
+            ],
+            JSON_THROW_ON_ERROR,
+        );
+
+        $client = \core\di::get(http_client::class);
+        try {
+            $response = $client->post(
+                uri: $config->modica_url ?? self::MODICA_DEFAULT_API,
+                options:
+                [
+                    'auth' => [
+                        $this->config->modica_application_name,
+                        $this->config->modica_application_password,
+                    ],
+                    'headers' => ['Content-Type' => 'application/json'],
+                    'body' => $json,
+                ],
+            );
+
+            if ($response->getStatusCode() === 201) {
+                $status = \core_sms\message_status::GATEWAY_SENT;
+            } else {
+                $status = \core_sms\message_status::GATEWAY_FAILED;
+            }
+        } catch (GuzzleException $e) {
+            $status = \core_sms\message_status::GATEWAY_FAILED;
+        }
+
+        return $message->with(
+            status: $status,
+        );
+    }
+
+    #[\Override]
+    public function get_send_priority(message $message): int {
+        return 50;
+    }
+}
diff --git a/sms/gateway/modica/classes/hook_listener.php b/sms/gateway/modica/classes/hook_listener.php
new file mode 100644
index 00000000000..7ab21ead8f1
--- /dev/null
+++ b/sms/gateway/modica/classes/hook_listener.php
@@ -0,0 +1,86 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+namespace smsgateway_modica;
+
+use core_sms\hook\after_sms_gateway_form_hook;
+
+/**
+ * Hook listener for Modica sms gateway.
+ *
+ * @package    smsgateway_modica
+ * @copyright  2025 Safat Shahin <safat.shahin@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class hook_listener {
+
+    /**
+     * Hook listener for the sms gateway setup form.
+     *
+     * @param after_sms_gateway_form_hook $hook The hook to add to sms gateway setup.
+     */
+    public static function set_form_definition_for_modica_sms_gateway(after_sms_gateway_form_hook $hook): void {
+        if ($hook->plugin !== 'smsgateway_modica') {
+            return;
+        }
+
+        $mform = $hook->mform;
+
+        $mform->addElement('static', 'information', get_string('modica_information', 'smsgateway_modica'));
+
+        $mform->addElement(
+            'text',
+            'modica_url',
+            get_string('modica_url', 'smsgateway_modica'),
+            'maxlength="255" size="20"',
+        );
+        $mform->setType('modica_url', PARAM_URL);
+        $mform->addRule('modica_url', get_string('maximumchars', '', 255), 'maxlength', 255);
+        $mform->addRule('modica_url', null, 'required');
+        $mform->setDefault(
+            elementName: 'modica_url',
+            defaultValue: gateway::MODICA_DEFAULT_API,
+        );
+
+        $mform->addElement(
+            'text',
+            'modica_application_name',
+            get_string('modica_application_name', 'smsgateway_modica'),
+            'maxlength="255" size="20"',
+        );
+        $mform->setType('modica_application_name', PARAM_TEXT);
+        $mform->addRule('modica_application_name', get_string('maximumchars', '', 255), 'maxlength', 255);
+        $mform->addRule('modica_application_name', null, 'required');
+        $mform->setDefault(
+            elementName: 'modica_application_name',
+            defaultValue: '',
+        );
+
+        $mform->addElement(
+            'passwordunmask',
+            'modica_application_password',
+            get_string('modica_application_password', 'smsgateway_modica'),
+            'maxlength="255" size="20"',
+        );
+        $mform->setType('modica_application_password', PARAM_TEXT);
+        $mform->addRule('modica_application_password', get_string('maximumchars', '', 255), 'maxlength', 255);
+        $mform->addRule('modica_application_password', null, 'required');
+        $mform->setDefault(
+            elementName: 'modica_application_password',
+            defaultValue: '',
+        );
+    }
+}
diff --git a/sms/gateway/modica/classes/privacy/provider.php b/sms/gateway/modica/classes/privacy/provider.php
new file mode 100644
index 00000000000..25e883fbe30
--- /dev/null
+++ b/sms/gateway/modica/classes/privacy/provider.php
@@ -0,0 +1,35 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+namespace smsgateway_modica\privacy;
+
+use core_privacy\local\metadata\null_provider;
+
+/**
+ * Privacy Subsystem for smsgateway_modica implementing null_provider.
+ *
+ * @package    smsgateway_modica
+ * @copyright  2025 Safat Shahin <safat.shahin@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @codeCoverageIgnore
+ */
+class provider implements null_provider {
+
+    #[\Override]
+    public static function get_reason(): string {
+        return 'privacy:metadata';
+    }
+}
diff --git a/sms/gateway/modica/db/hooks.php b/sms/gateway/modica/db/hooks.php
new file mode 100644
index 00000000000..fd97630d336
--- /dev/null
+++ b/sms/gateway/modica/db/hooks.php
@@ -0,0 +1,32 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Hook listener callbacks for Modica sms gateway.
+ *
+ * @package    smsgateway_modica
+ * @copyright  2025 Safat Shahin <safat.shahin@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+$callbacks = [
+    [
+        'hook' => \core_sms\hook\after_sms_gateway_form_hook::class,
+        'callback' => \smsgateway_modica\hook_listener::class . '::set_form_definition_for_modica_sms_gateway',
+    ],
+];
diff --git a/sms/gateway/modica/lang/en/smsgateway_modica.php b/sms/gateway/modica/lang/en/smsgateway_modica.php
new file mode 100644
index 00000000000..c58d3379819
--- /dev/null
+++ b/sms/gateway/modica/lang/en/smsgateway_modica.php
@@ -0,0 +1,30 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Strings for component smsgateway_modica, language 'en'.
+ *
+ * @package    smsgateway_modica
+ * @copyright  2025 Safat Shahin <safat.shahin@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+$string['modica_application_name'] = 'Modica application name';
+$string['modica_application_password'] = 'Modica application password';
+$string['modica_information'] = 'Complete the following fields using the information provided by Modica';
+$string['modica_url'] = 'Modica API URL';
+$string['pluginname'] = 'Modica';
+$string['privacy:metadata'] = 'The Modica SMS gateway plugin does not store any personal data.';
diff --git a/sms/gateway/modica/tests/gateway_test.php b/sms/gateway/modica/tests/gateway_test.php
new file mode 100644
index 00000000000..af85d65d192
--- /dev/null
+++ b/sms/gateway/modica/tests/gateway_test.php
@@ -0,0 +1,93 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+namespace smsgateway_modica;
+
+use core_sms\message;
+use core_sms\message_status;
+use GuzzleHttp\Psr7\Response;
+
+/**
+ * Modica SMS gateway tests.
+ *
+ * @package    smsgateway_modica
+ * @category   test
+ * @copyright  2025 Safat Shahin <safat.shahin@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @covers     \smsgateway_modica\gateway
+ */
+final class gateway_test extends \advanced_testcase {
+
+    public function test_send(): void {
+        $this->resetAfterTest();
+
+        $config = new \stdClass();
+        $config->modica_url = gateway::MODICA_DEFAULT_API;
+        $config->modica_application_name = 'test_application';
+        $config->modica_application_password = 'test_password';
+
+        $manager = \core\di::get(\core_sms\manager::class);
+        $gw = $manager->create_gateway_instance(
+            classname: gateway::class,
+            name: 'modica',
+            enabled: true,
+            config: $config,
+        );
+
+        // Mock the http client to return a successful response.
+        ['mock' => $mock] = $this->get_mocked_http_client();
+
+        // Append the response status.
+        $mock->append(new Response(
+            status: 201,
+        ));
+
+        $message = $manager->send(
+            recipientnumber: '+447123456789',
+            content: 'Hello, world!',
+            component: 'core',
+            messagetype: 'test',
+            recipientuserid: null,
+            async: false,
+        );
+
+        $this->assertInstanceOf(message::class, $message);
+        $this->assertIsInt($message->id);
+        $this->assertEquals(message_status::GATEWAY_SENT, $message->status);
+        $this->assertEquals($gw->id, $message->gatewayid);
+        $this->assertEquals('Hello, world!', $message->content);
+
+        $storedmessage = $manager->get_message(['id' => $message->id]);
+        $this->assertEquals($message, $storedmessage);
+
+        // Now let's try with failed status.
+        $mock->append(new Response(
+            status: 200,
+        ));
+
+        $message = $manager->send(
+            recipientnumber: '+447123456789',
+            content: 'Hello, world!',
+            component: 'core',
+            messagetype: 'test',
+            recipientuserid: null,
+            async: false,
+        );
+
+        $this->assertEquals(message_status::GATEWAY_FAILED, $message->status);
+        $this->assertEquals($gw->id, $message->gatewayid);
+    }
+}
diff --git a/sms/gateway/modica/version.php b/sms/gateway/modica/version.php
new file mode 100644
index 00000000000..cf7ba5e20db
--- /dev/null
+++ b/sms/gateway/modica/version.php
@@ -0,0 +1,30 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Version information for smsgateway_modica.
+ *
+ * @package    smsgateway_modica
+ * @copyright  2025 Safat Shahin <safat.shahin@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+$plugin->component = 'smsgateway_modica';
+$plugin->version = 2025022500;
+$plugin->requires = 2024100100;
+$plugin->maturity = MATURITY_STABLE;