Building hub-and-spoke topology

[kornicameister]

Hey,

I am playing around with the idea of having a proxy mcp server (later referenced as proxy_ over another mcp server ( referenced as business ). My idea is getting my proxy augmenting tools from business server by adding argument to each tool called client_id. Proxy, knowing client id, must perform credentials resolution that business server expects. I can add client_id just fine with the help of middleware but having heated discussion with myself how to push credentials into business server so that:

• it has access them via env variables (cant modify business mcp server, it just uses those creds via environ)

• but it is written in python, same as my code, so I can import FastMCP instance from their code and push it into FastMcp.as_proxy

• there's a code that loads the client in business mcp server, tried patching, but I think we're too late to the party to patch the client instance and even if I figure that one out I will still be having problems with the fact that I should actually have business mcp server per client ID and have proxy mcp server route to appropriate business mcp server based on said clientId + do the credentials resolution and push-em into environ !!!

Has anyone done something like that yet??