I think I'm authenticating with the MCP server endpoint successfully using a bearer token but I can't successfully initialize an MCP session.  I'm using the official MCP Python sdk (https://github.com/modelcontextprotocol/python-sdk).

I get as far as here but I don't get much more than the callstack from the raised exception:

Maybe this is a scopes issue?

What scopes should I use during the Zoho OAuth process to access the Zoho MCP server?