Claude Code 1.0.77 - MCP: [DEBUG] MCP server "windmill": No token data found
Even though the MCP is configured with the token, and the token is valid and can be used otherwise,windmill mcp reports errors in claude code.
[DEBUG] MCP server "windmill": Using redirect port: 61290
[DEBUG] MCP server "windmill": Generated new OAuth state
[DEBUG] MCP server "windmill": Starting SDK auth
[DEBUG] MCP server "windmill": Server URL: http://localhost/api/mcp/w/<workspace_redacted>/sse?token=<token_redacted>
[DEBUG] MCP server "windmill": SDK auth error: SyntaxError: Failed to parse JSON
[DEBUG] MCP server "windmill": MCP OAuth server cleaned up
Backend Version: CE v1.523.0-2-g0893ce103
1.0.77 (Claude Code)
3 Replies
the error in the title is in the regular debug output when asking claude to do something with the mcp, the other logs are when using /mcp and going to windmill and triggering authentication manually
the mcp is throwing json errors and token issues even though it has everything it needs, for those that come after, you can have claude.md instructions on how to use the windmill cli to do things instead, it's working fine. (also if you use the github mcp, i find custom instructions for the github cli to work a lot better and faster than the mcp, i dont know if this is the case with windmill since i cant get it to work at all)
@centdix974
Hi ! Can you confirm you are adding the mcp server like this ?
claude mcp add --transport http windmill https://app.windmill.dev/api/mcp/w/<workspace>/sse?token=<token>