diff --git a/mcp_server/src/config/schema.py b/mcp_server/src/config/schema.py
index ff7609bd1..ce57ba9a6 100644
--- a/mcp_server/src/config/schema.py
+++ b/mcp_server/src/config/schema.py
@@ -265,6 +265,10 @@ def apply_cli_overrides(self, args) -> None:
         # Override server settings
         if hasattr(args, 'transport') and args.transport:
             self.server.transport = args.transport
+        if hasattr(args, 'host') and args.host:
+            self.server.host = args.host
+        if hasattr(args, 'port') and args.port is not None:
+            self.server.port = args.port
 
         # Override LLM settings
         if hasattr(args, 'llm_provider') and args.llm_provider:
diff --git a/mcp_server/tests/test_configuration.py b/mcp_server/tests/test_configuration.py
index 5876c1ed4..e424bce47 100644
--- a/mcp_server/tests/test_configuration.py
+++ b/mcp_server/tests/test_configuration.py
@@ -153,6 +153,8 @@ def test_cli_override():
     class Args:
         config = Path('config.yaml')
         transport = 'stdio'
+        host = '127.0.0.1'
+        port = 9999
         llm_provider = 'anthropic'
         model = 'claude-3-sonnet'
         temperature = 0.5
@@ -165,8 +167,13 @@ class Args:
     config = GraphitiConfig()
     config.apply_cli_overrides(Args())
 
+    assert config.server.host == '127.0.0.1', f'Expected host 127.0.0.1, got {config.server.host}'
+    assert config.server.port == 9999, f'Expected port 9999, got {config.server.port}'
+
     print('✓ CLI overrides applied successfully')
     print(f'  - Transport: {config.server.transport}')
+    print(f'  - Host: {config.server.host}')
+    print(f'  - Port: {config.server.port}')
     print(f'  - LLM provider: {config.llm.provider}')
     print(f'  - LLM model: {config.llm.model}')
     print(f'  - Temperature: {config.llm.temperature}')
@@ -175,6 +182,28 @@ class Args:
     print(f'  - Group ID: {config.graphiti.group_id}')
     print(f'  - User ID: {config.graphiti.user_id}')
 
+    # Test that defaults are preserved when CLI flags are omitted
+    class MinimalArgs:
+        config = Path('config.yaml')
+        transport = None
+        host = None
+        port = None
+        llm_provider = None
+        model = None
+        temperature = None
+        embedder_provider = None
+        embedder_model = None
+        database_provider = None
+        group_id = None
+        user_id = None
+
+    default_config = GraphitiConfig()
+    default_config.apply_cli_overrides(MinimalArgs())
+
+    assert default_config.server.host == '0.0.0.0', 'Default host should be preserved'
+    assert default_config.server.port == 8000, 'Default port should be preserved'
+    print('✓ Defaults preserved when CLI flags are omitted')
+
 
 async def main():
     """Run all tests."""