diff --git a/composer.json b/composer.json
new file mode 100644
index 0000000..4e6004a
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,10 @@
+{
+    "name": "acumbamail/acumbamail-php",
+    "description": "PHP API implementing all methods from Acumbamail API",
+    "require": {},
+    "autoload": {
+        "psr-4": {
+            "Acumbamail\\AcumbamailPHP\\": "src/"
+        }
+    }
+}
diff --git a/acumbamail.class.php b/src/AcumbamailAPI.php
similarity index 99%
rename from acumbamail.class.php
rename to src/AcumbamailAPI.php
index bad3736..4a8e050 100644
--- a/acumbamail.class.php
+++ b/src/AcumbamailAPI.php
@@ -1,4 +1,6 @@
 <?php
+namespace Acumbamail\AcumbamailPHP;
+
 /* PHP Class for Acumbamail API */
 
 class AcumbamailAPI {