MCPs › Data & APIs › Open Research KB
A local-first MCP server for building and querying PDF knowledge bases. It indexes PDFs into DuckDB and exposes evidence-grounded retrieval tools to separate corpus-backed answers from independent reasoning.
Not monetized yet
Turn Open Research KB’s tool calls into revenue: one disclosed sponsored slot, 70% revenue share, fail-open by design.
Install Open Research KB
For anyone using Open Research KB — no Lulu account needed# stdio server — install per the repository README: https://github.com/vecbase-labs/openshelf
Real-time weather for any city, built on the lulu-ads widget gallery. First-party, free forever.
View server →FAQ
Open Research KB 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
Works well together
Your server?
This is for the person who owns Open Research KB — 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/open-research-kb)