Start MCP Server Without User Authentication via OAuth

[HaithamOumerzoug]

I’d like to understand how to start the MCP server using MCPO without requiring the user to authenticate on the OAuth server manually.

Currently, when starting the mcp servers, MCPO handles the authentication flow itself. However, the desired setup is to have the MCP client (e.g., ChatGPT, Claude, etc.) be responsible for authenticating the user and handling OAuth redirects when attempting to use MCP tools.

[TF88641]

I’d like to understand how to start the MCP server using MCPO without requiring the user to authenticate on the OAuth server manually.

Currently, when starting the mcp servers, MCPO handles the authentication flow itself. However, the desired setup is to have the MCP client (e.g., ChatGPT, Claude, etc.) be responsible for authenticating the user and handling OAuth redirects when attempting to use MCP tools.

I'm after the same answer, the e2e solution doesn't seem to stack up. I'm using 0.0.20 with the config below. On tool creation in openwebui the OAuth process triggers but there's nobody waiting so the OAuth fails and the tool list openapi is empty. Is there some way in the chat to indicate 'please re-register' ? The remote MCP isn't getting any hits from the mcpo instance after failed initial setup.

I'm trying to build with OAuth DCR to handle multiple individuals using same remote MCP each with their tokens separately handled.
I tried openwebiui -> direct to the remote MCP - it sort of works but the tokens don't seem to be handled correctly (no proper refreshes) which MCPO claims it sorts out.

{
      "type": "streamable-http",
      "url": "http://xxxx-d00.svc.cluster.local:8000/mcp",
      "oauth": {
        "server_url": "http://xxxx-d00.svc.cluster.local:8000",
        "storage_type": "memory",
        "use_loopback": true,
        "callback_port": 8001
      }