diff --git a/src/flareio/api_client.py b/src/flareio/api_client.py
index de108e0..869bc90 100644
--- a/src/flareio/api_client.py
+++ b/src/flareio/api_client.py
@@ -37,6 +37,7 @@ def __init__(
         tenant_id: t.Optional[int] = None,
         session: t.Optional[requests.Session] = None,
         api_domain: t.Optional[str] = None,
+        proxies: t.Optional[t.Dict[str, str]] = None,
         _auth: AuthBase | None = None,
         _enable_beta_features: bool = False,
     ) -> None:
@@ -59,6 +60,8 @@ def __init__(
         self._api_token: t.Optional[str] = None
         self._api_token_exp: t.Optional[datetime] = None
         self._session = session or self._create_session()
+        if proxies is not None:
+            self._session.proxies.update(proxies)
 
     @classmethod
     def from_env(cls) -> "FlareApiClient":
diff --git a/tests/test_api_client_creation.py b/tests/test_api_client_creation.py
index 2717fc8..0a567d0 100644
--- a/tests/test_api_client_creation.py
+++ b/tests/test_api_client_creation.py
@@ -1,6 +1,7 @@
 from datetime import datetime
 
 import pytest
+import requests
 import requests_mock
 
 from packaging.version import Version
@@ -86,3 +87,31 @@ def test_backoff_max() -> None:
         retry = FlareApiClient._create_retry()
         assert hasattr(retry, "backoff_max")
         assert retry.backoff_max == 15
+
+
+def test_proxies_applied_to_session() -> None:
+    client = FlareApiClient(
+        api_key="test",
+        proxies={"https": "http://proxy.corp.local:8080"},
+    )
+    assert client._session.proxies["https"] == "http://proxy.corp.local:8080"
+
+
+def test_proxies_default_no_proxy() -> None:
+    client = FlareApiClient(api_key="test")
+    assert client._session.proxies == {}
+
+
+def test_proxies_merge_with_user_session() -> None:
+    session = requests.Session()
+    session.proxies["http"] = "http://existing-proxy:3128"
+
+    client = FlareApiClient(
+        api_key="test",
+        session=session,
+        proxies={"https": "http://new-proxy:8080"},
+    )
+
+    assert client._session is session
+    assert client._session.proxies["http"] == "http://existing-proxy:3128"
+    assert client._session.proxies["https"] == "http://new-proxy:8080"