fix: do not normalize the user provided endpoint

aws_mcp_proxy/server.py

@@ -31,7 +31,6 @@
 from aws_mcp_proxy.utils import (
     create_transport_with_sigv4,
     determine_service_name,
-    normalize_endpoint_url,
 )
 from fastmcp.server.server import FastMCP
 from typing import Any
@@ -57,11 +56,8 @@ async def setup_mcp_mode(mcp: FastMCP, args) -> None:
     )
     logger.info('Running in MCP mode')
 
-    # Normalize endpoint URL
-    endpoint_url = normalize_endpoint_url(args.endpoint)
-
     # Create transport with SigV4 authentication
-    transport = create_transport_with_sigv4(endpoint_url, service, profile)
+    transport = create_transport_with_sigv4(args.endpoint, service, profile)
 
     # Create proxy with the transport
     proxy = FastMCP.as_proxy(transport)

aws_mcp_proxy/utils.py

@@ -51,22 +51,6 @@ def client_factory(
     )
 
 
-def normalize_endpoint_url(endpoint: str, path: str = '/mcp') -> str:
-    """Normalize endpoint URL by ensuring it has the correct path.
-
-    Args:
-        endpoint: The base endpoint URL
-        path: The path to append (defaults to '/mcp')
-
-    Returns:
-        Normalized endpoint URL
-    """
-    endpoint_url = endpoint.rstrip('/')
-    if not endpoint_url.endswith(path):
-        endpoint_url += path
-    return endpoint_url
-
-
 def determine_service_name(endpoint: str, service: Optional[str] = None) -> str:
     """Validate and determine the service name.
 

tests/test_utils.py

@@ -18,7 +18,6 @@
 from aws_mcp_proxy.utils import (
     create_transport_with_sigv4,
     determine_service_name,
-    normalize_endpoint_url,
 )
 from fastmcp.client.transports import StreamableHttpTransport
 from unittest.mock import MagicMock, patch
@@ -85,40 +84,6 @@ def test_create_transport_with_sigv4_no_profile(self, mock_create_sigv4_client):
             assert result is not None
 
 
-class TestNormalizeEndpointUrl:
-    """Test cases for normalize_endpoint_url function (lines 151-153)."""
-
-    def test_normalize_endpoint_url_default_path(self):
-        """Test normalizing endpoint URL with default /mcp path."""
-        endpoint = 'https://eks-mcp.us-west-2.api.aws'
-        result = normalize_endpoint_url(endpoint)
-        assert result == 'https://eks-mcp.us-west-2.api.aws/mcp'
-
-    def test_normalize_endpoint_url_custom_path(self):
-        """Test normalizing endpoint URL with custom path."""
-        endpoint = 'https://eks-mcp.us-west-2.api.aws'
-        result = normalize_endpoint_url(endpoint, '/api/v1')
-        assert result == 'https://eks-mcp.us-west-2.api.aws/api/v1'
-
-    def test_normalize_endpoint_url_trailing_slash(self):
-        """Test normalizing endpoint URL that already has trailing slash."""
-        endpoint = 'https://eks-mcp.us-west-2.api.aws/'
-        result = normalize_endpoint_url(endpoint)
-        assert result == 'https://eks-mcp.us-west-2.api.aws/mcp'
-
-    def test_normalize_endpoint_url_already_has_path(self):
-        """Test normalizing endpoint URL that already has the path."""
-        endpoint = 'https://eks-mcp.us-west-2.api.aws/mcp'
-        result = normalize_endpoint_url(endpoint)
-        assert result == 'https://eks-mcp.us-west-2.api.aws/mcp'
-
-    def test_normalize_endpoint_url_different_existing_path(self):
-        """Test normalizing endpoint URL that has a different existing path."""
-        endpoint = 'https://eks-mcp.us-west-2.api.aws/api'
-        result = normalize_endpoint_url(endpoint)
-        assert result == 'https://eks-mcp.us-west-2.api.aws/api/mcp'
-
-
 class TestValidateRequiredArgs:
     """Test cases for validate_service_name function."""