MCPs › Security › SINT Protocol
Security-enforcing MCP proxy that sits between an AI agent and any number of downstream MCP servers, intercepting every tool call through a capability-token policy gateway that can allow, deny, or escalate to human approval before the call reaches any real tool. It also exposes built-in operator tools for approval workflows, audit trail queries, token management, voice/HUD output, and hierarchical
Not monetized yet
Turn SINT Protocol’s tool calls into revenue: one disclosed sponsored slot, 70% revenue share, fail-open by design.
Install SINT Protocol
For anyone using SINT Protocol — no Lulu account needed# stdio server — install per the repository README: https://github.com/sint-ai/sint-protocol
Real-time weather for any city, built on the lulu-ads widget gallery. First-party, free forever.
View server →FAQ
SINT Protocol 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 SINT Protocol — 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/sint-protocol)