MCPs โบ Travel โบ retrieval-lens
A black-box flight recorder for RAG retrieval inside MCP agents. Logs what chunks the model saw, scores, sources, and rankings - so you can audit, replay, and diff retrieval runs after the fact.
Not monetized yet
Turn retrieval-lensโs tool calls into revenue: one disclosed sponsored slot, 70% revenue share, fail-open by design.
Install retrieval-lens
For anyone using retrieval-lens โ no Lulu account needed# stdio server โ install per the repository README: https://github.com/vbj1808/retrieval-lens
Real-time weather for any city, built on the lulu-ads widget gallery. First-party, free forever.
View server โFAQ
retrieval-lens installs from source โ follow the repository README.
Unrated out of 100, computed from cross-registry traction signals (installs, stars, registry presence) โ never influenced by sponsorship.
Similar servers
Works well together
Your server?
This is for the person who owns retrieval-lens โ 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 โ no claim needed for that.
Managed hosting with monetization built in โ waitlist.
[](https://getlulu.dev/mcps/retrieval-lens)