mcp-error-401-unauthorized-fix

Traceback (most recent call last):
  File "./openai-agents-python/.venv/lib/python3.13/site-packages/mcp/client/streamable_http.py", line 405, in handle_request_async
    await self._handle_post_request(ctx)
  File "./openai-agents-python/.venv/lib/python3.13/site-packages/mcp/client/streamable_http.py", line 277, in _handle_post_request
    response.raise_for_status()
    ~~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "./openai-agents-python/.venv/lib/python3.13/site-packages/httpx/_models.py", line 829, in raise_for_status
    raise HTTPStatusError(message, request=request, response=self)
httpx.HTTPStatusError: Client error '401 Unauthorized' for url 'http://localhost:8000/mcp'
For more information check: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/401

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "./openai-agents-python/test.py", line 39, in <module>
    asyncio.run(main())
    ~~~~~~~~~~~^^^^^^^^
  File "./.local/share/uv/python/cpython-3.13.9-macos-aarch64-none/lib/python3.13/asyncio/runners.py", line 195, in run
    return runner.run(main)
           ~~~~~~~~~~^^^^^^
  File "./.local/share/uv/python/cpython-3.13.9-macos-aarch64-none/lib/python3.13/asyncio/runners.py", line 118, in run
    return self._loop.run_until_complete(task)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^
  File "./.local/share/uv/python/cpython-3.13.9-macos-aarch64-none/lib/python3.13/asyncio/base_events.py", line 725, in run_until_complete
    return future.result()
           ~~~~~~~~~~~~~^^
  File "./openai-agents-python/test.py", line 28, in main
    async with MCPServerStreamableHttp(
               ~~~~~~~~~~~~~~~~~~~~~~~^
        name="Streamable HTTP Python Server",
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    ...<3 lines>...
        },
        ^^
    ) as server:
    ^
  File "./openai-agents-python/src/agents/mcp/server.py", line 278, in __aenter__
    await self.connect()
  File "./openai-agents-python/src/agents/mcp/server.py", line 405, in connect
    await self.cleanup()
  File "./openai-agents-python/src/agents/mcp/server.py", line 528, in cleanup
    raise UserError(
    ...<3 lines>...
    ) from http_error
agents.exceptions.UserError: Failed to connect to MCP server 'Streamable HTTP Python Server': Authentication failed (401 Unauthorized). Please check your credentials.