mcp-rag

Connecting a RAG application to open-webui by means of MCP

1. Bare bones MCP PoC / Hello World

pip install mcp[cli]

look up documentation on sse snippets
run server using uvicorn
doesnt work -> look up documentation in SseServerTranpsort class which differs from MCP website
change Route -> Mount for starlette_app, then it works
starlette gives 307 temporary redirect, testing it with curl shows that it is due to a missing trailing slash
looked up on github repo, there the routes end with trailing slash for server code, especially the sse = SseServerTransport("/messages/") part which I guess tells the client what to call
add some prompts and check on client side

I want to try out the model context protocol because I have been experimenting with RAG prototypes for use with open-webui. MCP looks similar to LSP. Since server and client won't be on the same machine, we have to use the SSE transport.
MCP comes with some snippets on the official documentation, I had to adapt them a bit following the docstrings provided by the mcp python library. Took me a while to get things working, initially dealt with 307 Temporary Redirect errors since the server was sending the wrong endpoint.
Test it! Build a small REPL that can interact with the server

I want to build a simple KnowledgeBase that we can stick into the MCP server and call through the client to retrieve some context.

Connecting a RAG application to open-webui by means of MCP

pip install mcp[cli]

look up documentation on sse snippets
run server using uvicorn
doesnt work -> look up documentation in SseServerTranpsort class which differs from MCP website
change Route -> Mount for starlette_app, then it works
starlette gives 307 temporary redirect, testing it with curl shows that it is due to a missing trailing slash
looked up on github repo, there the routes end with trailing slash for server code, especially the sse = SseServerTransport("/messages/") part which I guess tells the client what to call
add some prompts and check on client side

I want to try out the model context protocol because I have been experimenting with RAG prototypes for use with open-webui. MCP looks similar to LSP. Since server and client won't be on the same machine, we have to use the SSE transport.
MCP comes with some snippets on the official documentation, I had to adapt them a bit following the docstrings provided by the mcp python library. Took me a while to get things working, initially dealt with 307 Temporary Redirect errors since the server was sending the wrong endpoint.
Test it! Build a small REPL that can interact with the server

I want to build a simple KnowledgeBase that we can stick into the MCP server and call through the client to retrieve some context.