MCP servers not working with self-hosted model backend (works with OpenRouter)

[Byrdarov]

I’ve successfully deployed LibreChat and am using my own self-hosted machine instead of OpenRouter for model serving.

Setup:

LibreChat deployed

Custom self-hosted machine providing the LLM backend

Not using OpenRouter

What works:

Prompting the model directly works without issues.

What doesn’t work:

MCP servers that are known to work with OpenRouter do not work with my self-hosted backend.

Question:

Is there a compatibility or configuration issue that prevents MCP servers from working with a self-hosted backend?
Any guidance or troubleshooting steps would be appreciated.

Thanks in advance!