diff --git a/src/mcp/cli/claude.py b/src/mcp/cli/claude.py
index 1df71c1ae..fe3f3380a 100644
--- a/src/mcp/cli/claude.py
+++ b/src/mcp/cli/claude.py
@@ -1,6 +1,7 @@
 """Claude app integration utilities."""
 
 import json
+import os
 import sys
 from pathlib import Path
 
@@ -17,6 +18,10 @@ def get_claude_config_path() -> Path | None:
         path = Path(Path.home(), "AppData", "Roaming", "Claude")
     elif sys.platform == "darwin":
         path = Path(Path.home(), "Library", "Application Support", "Claude")
+    elif sys.platform.startswith("linux"):
+        path = Path(
+            os.environ.get("XDG_CONFIG_HOME", Path.home() / ".config"), "Claude"
+        )
     else:
         return None
 
diff --git a/src/mcp/client/websocket.py b/src/mcp/client/websocket.py
index b807370a5..3e73b0204 100644
--- a/src/mcp/client/websocket.py
+++ b/src/mcp/client/websocket.py
@@ -15,7 +15,9 @@
 
 
 @asynccontextmanager
-async def websocket_client(url: str) -> AsyncGenerator[
+async def websocket_client(
+    url: str,
+) -> AsyncGenerator[
     tuple[
         MemoryObjectReceiveStream[types.JSONRPCMessage | Exception],
         MemoryObjectSendStream[types.JSONRPCMessage],
@@ -59,7 +61,7 @@ async def ws_reader():
 
         async def ws_writer():
             """
-            Reads JSON-RPC messages from write_stream_reader and 
+            Reads JSON-RPC messages from write_stream_reader and
             sends them to the server.
             """
             async with write_stream_reader: