diff --git a/fampay/utils.py b/fampay/utils.py
new file mode 100644
index 0000000..cf1bb58
--- /dev/null
+++ b/fampay/utils.py
@@ -0,0 +1,17 @@
+from fampay.constants import FamAppConstants
+from fampay.phone import AndroidPhone
+
+
+def common_headers(phone: AndroidPhone) -> dict[str, str]:
+    ua = phone.fampay_user_agent
+    return {
+        "X-APP-VERSION": FamAppConstants.APP_VERSION_CODE,
+        "X-PLATFORM": FamAppConstants.PLATFORM,
+        "X-DEVICE-OS-VERSION": phone.os_release,
+        "X-DEVICE-MODEL": phone.model,
+        "DEVICE-ID": phone.fampay_device_id,
+        "User-Agent": ua,
+        "X-DEVICE-DETAILS": ua,
+        "Accept": "application/json",
+        "Content-Type": "application/json",
+    }