diff --git a/auth.php b/auth.php
new file mode 100644
index 0000000..29d243a
--- /dev/null
+++ b/auth.php
@@ -0,0 +1,41 @@
+<?php
+require_once 'config.php';
+require_once 'vendor/autoload.php';
+
+use Firebase\JWT\JWT;
+
+header('Content-Type: application/json');
+header('Access-Control-Allow-Origin: *');
+header('Access-Control-Allow-Methods: POST');
+header('Access-Control-Allow-Headers: Content-Type');
+
+if ($_SERVER['REQUEST_METHOD'] === 'POST') {
+    $body = json_decode(file_get_contents('php://input'), true);
+    $username = $body['username'] ?? '';
+    $password = $body['password'] ?? '';
+
+    $db = get_db();
+    $stmt = $db->prepare("SELECT * FROM users WHERE username = ? AND password = ?");
+    $stmt->bind_param("ss", $username, $password);
+    $stmt->execute();
+    $result = $stmt->get_result();
+    $user = $result->fetch_assoc();
+    $db->close();
+
+    if ($user) {
+        $payload = [
+            'sub' => $username,
+            'iat' => time(),
+            'exp' => time() + 900
+        ];
+        $token = JWT::encode($payload, JWT_SECRET, 'HS256');
+        echo json_encode(['token' => $token]);
+    } else {
+        http_response_code(401);
+        echo json_encode(['message' => 'Identifiants incorrects']);
+    }
+} else {
+    http_response_code(405);
+    echo json_encode(['message' => 'Méthode non autorisée']);
+}
+?>
\ No newline at end of file
diff --git a/composer.json b/composer.json
new file mode 100644
index 0000000..cbf9f33
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,7 @@
+{
+    "name": "smarthome/api",
+    "require": {
+        "php-mqtt/client": "^2.3",
+        "firebase/php-jwt": "^7.0"
+    }
+}
diff --git a/config.php b/config.php
new file mode 100644
index 0000000..2c244a2
--- /dev/null
+++ b/config.php
@@ -0,0 +1,22 @@
+<?php
+
+define('DB_HOST', 'localhost');
+define('DB_USER', 'smarthome_user');
+define('DB_PASSWORD', 'motdepasse123');
+define('DB_NAME', 'smarthome');
+
+define('JWT_SECRET', 'smarthome_secret_key_2024_smart_home_project_very_long_key');
+
+define('MQTT_BROKER', 'localhost');
+define('MQTT_PORT', 1883);
+define('MQTT_TOPIC_CLIMATE', 'smarthome/climate');
+define('MQTT_TOPIC_SECURITY', 'smarthome/security');
+
+function get_db() {
+    $conn = new mysqli(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME);
+    if ($conn->connect_error) {
+        die(json_encode(['error' => 'Connexion échouée : ' . $conn->connect_error]));
+    }
+    return $conn;
+}
+?>
\ No newline at end of file
diff --git a/mqtt_client.php b/mqtt_client.php
new file mode 100644
index 0000000..d6a8ca2
--- /dev/null
+++ b/mqtt_client.php
@@ -0,0 +1,47 @@
+<?php
+require_once 'config.php';
+require_once 'vendor/autoload.php';
+
+use PhpMqtt\Client\MqttClient;
+use PhpMqtt\Client\ConnectionSettings;
+
+function insert_climate($data) {
+    $db = get_db();
+    $stmt = $db->prepare("INSERT INTO climate_data (temperature, humidity, pressure, luminosity) VALUES (?, ?, ?, ?)");
+    $stmt->bind_param("dddd",
+        $data['temperature'],
+        $data['humidity'],
+        $data['pressure'],
+        $data['luminosity']
+    );
+    $stmt->execute();
+    $db->close();
+    echo "Donnée climatique insérée : " . json_encode($data) . "\n";
+}
+
+function insert_security($data) {
+    $db = get_db();
+    $stmt = $db->prepare("INSERT INTO security_events (event_type, location) VALUES (?, ?)");
+    $stmt->bind_param("ss", $data['event_type'], $data['location']);
+    $stmt->execute();
+    $db->close();
+    echo "Événement sécurité inséré : " . json_encode($data) . "\n";
+}
+
+$mqtt = new MqttClient(MQTT_BROKER, MQTT_PORT);
+$settings = (new ConnectionSettings())->setKeepAliveInterval(60);
+$mqtt->connect($settings);
+echo "Connecté au broker MQTT\n";
+
+$mqtt->subscribe(MQTT_TOPIC_CLIMATE, function($topic, $message) {
+    $data = json_decode($message, true);
+    insert_climate($data);
+}, 0);
+
+$mqtt->subscribe(MQTT_TOPIC_SECURITY, function($topic, $message) {
+    $data = json_decode($message, true);
+    insert_security($data);
+}, 0);
+
+$mqtt->loop(true);
+?>
\ No newline at end of file