diff --git a/tests/integration_tests/test_graph.py b/tests/integration_tests/test_graph.py
index a84adc3a..2ca999f5 100644
--- a/tests/integration_tests/test_graph.py
+++ b/tests/integration_tests/test_graph.py
@@ -1,3 +1,5 @@
+import os
+
 import pytest
 
 from react_agent import graph
@@ -6,6 +8,10 @@
 pytestmark = pytest.mark.anyio
 
 
+@pytest.mark.skipif(
+    not os.getenv("ANTHROPIC_API_KEY"),
+    reason="requires ANTHROPIC_API_KEY for live Anthropic integration",
+)
 async def test_react_agent_simple_passthrough() -> None:
     res = await graph.ainvoke(
         {"messages": [("user", "Who is the founder of LangChain?")]},  # type: ignore