[BUG] Cannot connect Remote GitHub MCP Server

The github mcp server doesn't support dynamic oauth client registration, meaning it doesn't support our normal oauth flow out of the box. Their docs touch on this a bit: https://github.com/github/github-mcp-server?tab=readme-ov-file#installation.

Instead you need to configure a PAT and set up the server config like:

"github": {
  "type": "http",
  "url": "https://api.githubcopilot.com/mcp",
  "headers": {
    "Authorization": "YOUR_PAT_HERE"
  }
}

I am still having this issue. Example of config:

    "github": {
      "type": "http",
      "url": "https://api.githubcopilot.com/mcp",
      "headers": {
        "Authorization": "Bearer github_pat_XXXXXXXXXXX"
      }
    }

I get the error:

[DEBUG] MCP server "github": No client info found


[DEBUG] MCP server "github": Connection failed: Error: Dynamic client registration failed: HTTP 404
[DEBUG] MCP server "github": Error message: Dynamic client registration failed: HTTP 404
[DEBUG] MCP server "github": Error stack: Error: Dynamic client registration failed: HTTP 404


[DEBUG] MCP server "github": No token data found
[DEBUG] MCP server "github": Using redirect port: 61749
[DEBUG] MCP server "github": Saving OAuth state
[DEBUG] MCP server "github": Starting SDK auth
[DEBUG] MCP server "github": Server URL: https://api.githubcopilot.com/mcp
[DEBUG] MCP server "github": No client info found
[DEBUG] MCP server "github": SDK auth error: Error: Dynamic client registration failed: HTTP 404

I'm seeing the same behaviour with a different OAuth implementation that does support dynamic registration. It is working when I use Inspector as the client rather than Claude Code.

Our /mcp endpoint replies with the resource_metadata option:

> GET /mcp HTTP/2
...
< HTTP/2 401 
...
< www-authenticate: Bearer resource_metadata="https://.../.well-known/oauth-protected-resource"
...

Claude Code never attempts to fetch the protected resource metadata. Instead we see it makes a request for /.well-known/oauth-authorization-server at the MCP server, rather than our authorization server, which fails. I think the issue might still be unresolved.

I'm still having the same issue when I try to initialise mcp serve with /mcp command after adding the mcp server with claude mcp add --transport http github https://api.githubcopilot.com/mcp/


Github MCP Server                                                                                                                                                                                                                     │
│                                                                                                                                                                                                                                       │
│ Status: ✘ failed                                                                                                                                                                                                                      │
│ URL: https://api.githubcopilot.com/mcp/                                                                                                                                                                                               │
│                                                                                                                                                                                                                                       │
│ Error: Dynamic client registration failed: HTTP 404   

I'm still having the same issue when I try to initialise mcp serve with /mcp command after adding the mcp server with claude mcp add --transport http github https://api.githubcopilot.com/mcp/ `` Github MCP Server │ │ │ │ Status: ✘ failed │ │ URL: https://api.githubcopilot.com/mcp/ │ │ │ │ Error: Dynamic client registration failed: HTTP 404 ``

Same error on WSL

@Archulan @malisancube are you adding a bearer token with a PAT as mentioned above?

@ashwin-ant I was able to configure the MCP via the json including the PAT as that was the final resort. But the original issue raised was related to dynamic OAuth not working.

I'm starting to really hate MCP all together. What a shit show maintaining mcp servers..

@Archulan that's an issue with the github server not offering dynamic OAuth, not actually a bug in Claude Code

@ashwin-ant 💯 . That's why I didn't reopen this issue.

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