diff --git a/barte/__init__.py b/barte/__init__.py
index e7f61d4..ca2bfe7 100644
--- a/barte/__init__.py
+++ b/barte/__init__.py
@@ -1,14 +1,13 @@
 from .client import BarteClient
 from .models import (
-    Charge,
     CardToken,
-    Refund,
-    PixCharge,
+    Charge,
     Customer,
+    PixCharge,
     PixQRCode,
+    Refund,
 )
 
-__version__ = "0.1.0"
 
 __all__ = [
     "BarteClient",
diff --git a/barte/__version__.py b/barte/__version__.py
new file mode 100644
index 0000000..a7e2ff5
--- /dev/null
+++ b/barte/__version__.py
@@ -0,0 +1,7 @@
+from importlib.metadata import PackageNotFoundError, version
+
+
+try:
+    __version__ = version("barte-python-sdk")
+except PackageNotFoundError:
+    __version__ = "0.0.0-dev"
diff --git a/barte/client.py b/barte/client.py
index f4a38ec..f8e6cc0 100644
--- a/barte/client.py
+++ b/barte/client.py
@@ -1,20 +1,24 @@
-from decimal import Decimal
-from typing import Dict, Any, Optional, Union, List
 from dataclasses import asdict
+from decimal import Decimal
+from typing import Any, Dict, List, Optional, Union
+
 import requests
 from dacite import from_dict
+
+from barte.__version__ import __version__
+
 from .models import (
-    Charge,
-    CardToken,
-    Refund,
-    PixCharge,
     DACITE_CONFIG,
     Buyer,
     BuyerList,
-    Order,
+    CardToken,
+    Charge,
     ChargeList,
-    OrderPayload,
     InstallmentOption,
+    Order,
+    OrderPayload,
+    PixCharge,
+    Refund,
 )
 
 
@@ -44,9 +48,14 @@ def __init__(self, api_key: str, environment: str = "production"):
             if environment == "production"
             else "https://sandbox-api.barte.com"
         )
-        self.headers = {"X-Token-Api": api_key, "Content-Type": "application/json"}
         self.session = requests.Session()
-        self.session.headers.update(self.headers)
+        self.session.headers.update(
+            {
+                "X-Token-Api": api_key,
+                "Content-Type": "application/json",
+                "User-Agent": f"barte-client/python version={__version__}",
+            }
+        )
         BarteClient._instance = self
 
     @classmethod