You could use Nango for the OAuth flow and then pass the user’s token to the MCP server: https://nango.dev/auth https://nango.dev/auth Free for OAuth with 400+

You could use Nango for the OAuth flow and then pass the user’s token to the MCP server: https://nango.dev/auth https://nango.dev/auth Free for OAuth with 400+ APIs & can be self-hosted (I am one of the founders)