René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"401 Unauthorized","articleBody":"**Describe the bug**\n\nConnecting from OpenAI SDK gives `401 Unauthorized`, pretty sure https://github.com/modelcontextprotocol/python-sdk/pull/255 is related from 1.7.0 release. This worked with `1.6.0`\n\n**To Reproduce**\n\n- Ubuntu 24.10\n- Python 3.12.7\n\n```bash\npip install \\\n  mcp==1.7.0 \\\n  openai==1.76.2 \\\n  openai-agents==0.0.14\n```\n\n\n**openai_agent_mcp.py**\n\n```python\nimport asyncio\n\nimport agents.mcp as openai_agents_mcp\nfrom agents import Agent, Runner\n\n\nasync def main():\n    async with openai_agents_mcp.MCPServerSse(\n        name=\"files\",\n        params={\n            \"url\": f\"http://localhost:8000/sse\",\n        },\n    ) as mcp_server:\n\n        agent = Agent(\n            name=\"Assistant\",\n            instructions=\"Use the tools to read the filesystem and answer questions based on those files.\",\n            mcp_servers=[mcp_server],\n        )\n\n        # List the files it can read\n        message = \"Read the os-release file and tell us what OS we are on\"\n        print(f\"Running: {message}\")\n        result = await Runner.run(starting_agent=agent, input=message)\n        print(result.final_output)\n\nif __name__ == \"__main__\":\n    asyncio.run(main())\n\n```\n\n**mcp_server_files.py**\n\n```python\nimport sys\nimport click\nimport pathlib\n\nimport uvicorn\nfrom mcp.server.fastmcp import FastMCP\n\nimport logging\n\nlogging.basicConfig(level=logging.DEBUG)\n\n\nos_release_path = pathlib.Path(\"/usr/lib/os-release\")\nif not os_release_path.exists():\n    os_release_path = pathlib.Path(\"/etc/os-release\")\nif not os_release_path.exists():\n    os_release_path = pathlib.Path(__file__)\n\n\nSAMPLE_RESOURCES = {\n    \"/usr/lib/os-release\": os_release_path.read_text(),\n    \"/etc/os-release\": os_release_path.read_text(),\n}\n\n\n@click.command()\n@click.option(\"--port\", default=8000, help=\"Port to listen on for SSE\")\n@click.option(\n    \"--transport\",\n    type=click.Choice([\"stdio\", \"sse\"]),\n    default=\"stdio\",\n    help=\"Transport type\",\n)\ndef main(port: int, transport: str) -\u003e int:\n    # Create server\n    mcp = FastMCP(\"OS info sever\")\n\n\n    @mcp.tool()\n    def get_files() -\u003e list[str]:\n        print(\"[debug-server] get_files()\")\n        return list(SAMPLE_RESOURCES.keys())\n\n\n    @mcp.tool()\n    def get_file_content(file: str) -\u003e str:\n        print(\"[debug-server] get_file_content()\")\n        return SAMPLE_RESOURCES[file]\n\n\n    mcp.run(transport=\"sse\")\n\nif __name__ == \"__main__\":\n    sys.exit(main())\n```\n\n**Expected behavior**\n\n```\nDEBUG:mcp.server.sse:Setting up SSE connection\nDEBUG:mcp.server.sse:Created new session with ID: 4c94bb47-1858-45f1-8f07-9a2cc31ae840\nDEBUG:mcp.server.sse:Starting SSE response task\nDEBUG:mcp.server.sse:Yielding read and write streams\nINFO:     127.0.0.1:62467 - \"GET /sse HTTP/1.1\" 200 OK\n```\n\n**Screenshots**\n\n```\nDEBUG:mcp.server.lowlevel.server:Registering handler for ListToolsRequest\nDEBUG:mcp.server.lowlevel.server:Registering handler for CallToolRequest\nDEBUG:mcp.server.lowlevel.server:Registering handler for ListResourcesRequest\nDEBUG:mcp.server.lowlevel.server:Registering handler for ReadResourceRequest\nDEBUG:mcp.server.lowlevel.server:Registering handler for PromptListRequest\nDEBUG:mcp.server.lowlevel.server:Registering handler for GetPromptRequest\nDEBUG:mcp.server.lowlevel.server:Registering handler for ListResourceTemplatesRequest\nDEBUG:asyncio:Using selector: KqueueSelector\nDEBUG:mcp.server.sse:SseServerTransport initialized with endpoint: /messages/\nINFO:     Started server process [60590]\nINFO:     Waiting for application startup.\nINFO:     Application startup complete.\nINFO:     Uvicorn running on http://0.0.0.0:8000 (Press CTRL+C to quit)\nINFO:     127.0.0.1:62493 - \"GET /sse HTTP/1.1\" 401 Unauthorized\n```\n\n```\nError initializing MCP server: unhandled errors in a TaskGroup (1 sub-exception)\n  + Exception Group Traceback (most recent call last):\n  |   File \"/home/johnandersen777/sshai-client/openai_agent_mcp.py\", line 26, in \u003cmodule\u003e\n  |     asyncio.run(main())\n  |   File \"/usr/lib/python3.12/asyncio/runners.py\", line 194, in run\n  |     return runner.run(main)\n  |            ^^^^^^^^^^^^^^^^\n  |   File \"/usr/lib/python3.12/asyncio/runners.py\", line 118, in run\n  |     return self._loop.run_until_complete(task)\n  |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n  |   File \"/usr/lib/python3.12/asyncio/base_events.py\", line 687, in run_until_complete\n  |     return future.result()\n  |            ^^^^^^^^^^^^^^^\n  |   File \"/home/johnandersen777/sshai-client/openai_agent_mcp.py\", line 6, in main\n  |     async with openai_agents_mcp.MCPServerSse(\n  |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n  |   File \"/home/johnandersen777/.local/.venv/lib/python3.12/site-packages/agents/mcp/server.py\", line 94, in __aenter__\n  |     await self.connect()\n  |   File \"/home/johnandersen777/.local/.venv/lib/python3.12/site-packages/agents/mcp/server.py\", line 107, in connect\n  |     transport = await self.exit_stack.enter_async_context(self.create_streams())\n  |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n  |   File \"/usr/lib/python3.12/contextlib.py\", line 659, in enter_async_context\n  |     result = await _enter(cm)\n  |              ^^^^^^^^^^^^^^^^\n  |   File \"/usr/lib/python3.12/contextlib.py\", line 210, in __aenter__\n  |     return await anext(self.gen)\n  |            ^^^^^^^^^^^^^^^^^^^^^\n  |   File \"/home/johnandersen777/.local/.venv/lib/python3.12/site-packages/mcp/client/sse.py\", line 43, in sse_client\n  |     async with anyio.create_task_group() as tg:\n  |                ^^^^^^^^^^^^^^^^^^^^^^^^^\n  |   File \"/home/johnandersen777/.local/.venv/lib/python3.12/site-packages/anyio/_backends/_asyncio.py\", line 772, in __aexit__\n  |     raise BaseExceptionGroup(\n  | ExceptionGroup: unhandled errors in a TaskGroup (1 sub-exception)\n  +-+---------------- 1 ----------------\n    | Traceback (most recent call last):\n    |   File \"/home/johnandersen777/.local/.venv/lib/python3.12/site-packages/mcp/client/sse.py\", line 53, in sse_client\n    |     event_source.response.raise_for_status()\n    |   File \"/home/johnandersen777/.local/.venv/lib/python3.12/site-packages/httpx/_models.py\", line 829, in raise_for_status\n    |     raise HTTPStatusError(message, request=request, response=self)\n    | httpx.HTTPStatusError: Client error '401 Unauthorized' for url 'http://localhost:8000/sse'\nFor more information check: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/401\n```\n","author":{"url":"https://github.com/johnandersen777","@type":"Person","name":"johnandersen777"},"datePublished":"2025-05-01T20:24:15.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/611/python-sdk/issues/611"}