diff --git a/.gitignore b/.gitignore
index 6814dd4..b1f46ec 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,8 +1,9 @@
 .idea/
 .venv/
+.DS_Store
 __pycache__/
 dist/
 debug.*
 .env
 .env_private
-scripts/
\ No newline at end of file
+scripts/
diff --git a/cozepy/__init__.py b/cozepy/__init__.py
index acb39a3..9e4c2fa 100644
--- a/cozepy/__init__.py
+++ b/cozepy/__init__.py
@@ -43,7 +43,10 @@
 )
 from .workspaces import WorkspaceRoleType, WorkspaceType, Workspace
 
+from .version import VERSION
+
 __all__ = [
+    "VERSION",
     # auth
     "OAuthToken",
     "DeviceAuthCode",
diff --git a/cozepy/request.py b/cozepy/request.py
index 901e09f..5132dd7 100644
--- a/cozepy/request.py
+++ b/cozepy/request.py
@@ -4,6 +4,7 @@
 from httpx import Response
 from typing_extensions import get_args, get_origin  # compatibility with python 3.7
 
+from cozepy.version import user_agent
 from cozepy.exception import CozeAPIError
 
 if TYPE_CHECKING:
@@ -45,6 +46,7 @@ def request(
         """
         if headers is None:
             headers = {}
+        headers["User-Agent"] = user_agent()
         if self._auth:
             self._auth.authentication(headers)
         r = httpx.request(
diff --git a/cozepy/version.py b/cozepy/version.py
new file mode 100644
index 0000000..900abdb
--- /dev/null
+++ b/cozepy/version.py
@@ -0,0 +1,31 @@
+import platform
+import sys
+from functools import lru_cache
+
+VERSION = "0.1.1"
+
+
+@lru_cache(maxsize=1)
+def user_agent():
+    print("调用了")
+    python_version = ".".join(map(str, sys.version_info[:2]))
+
+    os_name = platform.system().lower()
+    if os_name == "darwin":
+        os_name = "macos"
+
+    if os_name == "macos":
+        os_version = platform.mac_ver()[0]
+    elif os_name == "windows":
+        os_version = platform.win32_ver()[0]
+    elif os_name == "linux":
+        try:
+            import distro
+
+            os_version = distro.version(pretty=False, best=True)
+        except ImportError:
+            os_version = platform.release()
+    else:
+        os_version = platform.release()
+
+    return f"cozepy/{VERSION} python/{python_version} {os_name}/{os_version}".lower()
diff --git a/poetry.lock b/poetry.lock
index 919953e..14a31c3 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -294,6 +294,17 @@ files = [
     {file = "distlib-0.3.8.tar.gz", hash = "sha256:1530ea13e350031b6312d8580ddb6b27a104275a31106523b8f123787f494f64"},
 ]
 
+[[package]]
+name = "distro"
+version = "1.9.0"
+description = "Distro - an OS platform information API"
+optional = false
+python-versions = ">=3.6"
+files = [
+    {file = "distro-1.9.0-py3-none-any.whl", hash = "sha256:7bffd925d65168f85027d8da9af6bddab658135b840670a223589bc0c8ef02b2"},
+    {file = "distro-1.9.0.tar.gz", hash = "sha256:2fa77c6fd8940f116ee1d6b94a2f90b13b5ea8d019b98bc8bafdcabcdd9bdbed"},
+]
+
 [[package]]
 name = "exceptiongroup"
 version = "1.2.2"
@@ -864,4 +875,4 @@ testing = ["big-O", "flake8 (<5)", "jaraco.functools", "jaraco.itertools", "more
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.7"
-content-hash = "3df18b5d96d7a2cd2ab45659cd2c4c88e655029751bff10dd68c882d9e6fa5e6"
+content-hash = "283554b3607f952128188b9daae2baa70f52ee55ca2073bcf81de8866f9bf173"
diff --git a/pyproject.toml b/pyproject.toml
index 62ba8d1..2695549 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,6 +11,7 @@ pydantic = "^2.5.0"
 authlib = "^1.2.0"
 httpx = "^0.24.0"
 typing-extensions = "^4.3.0"
+distro = "^1.9.0"
 
 [tool.poetry.group.dev.dependencies]
 pytest = "^7.0.0"
diff --git a/tests/test_version.py b/tests/test_version.py
new file mode 100644
index 0000000..be2b774
--- /dev/null
+++ b/tests/test_version.py
@@ -0,0 +1,8 @@
+from cozepy import VERSION
+from cozepy.version import user_agent
+
+
+def test_user_agent():
+    res = user_agent()
+    assert f"cozepy/{VERSION}" in res
+    assert "python" in res