MCPs › langchain-mcp-user-query-demo
A demonstrative MCP server that exposes a query-user tool for retrieving user info by ID, integrated with LangChain for agent-driven model reasoning and tool calls.
Not monetized yet
Turn langchain-mcp-user-query-demo’s tool calls into revenue: one disclosed sponsored slot, 70% revenue share, fail-open by design.
Install langchain-mcp-user-query-demo
For anyone using langchain-mcp-user-query-demo — no Lulu account needed# stdio server — install per the repository README: https://github.com/ciel-17/langchain-mcp-server
Real-time weather for any city, built on the lulu-ads widget gallery. First-party, free forever.
View server →FAQ
langchain-mcp-user-query-demo installs from source — follow the repository README.
Unrated out of 100, computed from cross-registry traction signals (installs, stars, registry presence) — never influenced by sponsorship.
Similar servers
Your server?
This is for the person who owns langchain-mcp-user-query-demo — adds Lulu Ads to your own code. Not the install steps above, those are for your users.
Copies a ready prompt: your coding agent installs the lulu-ads SDK, wires the slot, and applies the widget design guide.
or set up manually at getlulu.dev/publishers
Get verified so you can edit the page. Your badge is already live below — no claim needed for that.
Managed hosting with monetization built in — waitlist.
[](https://getlulu.dev/mcps/langchain-mcp-user-query-demo)