The full version of Patronus Protect is about to launch.
We are preparing the release and have paused the downloads until then.
1 month free
for everyone on the waitlist, applied automatically at launch
One email at launch with your free month, product updates in between. Unsubscribe any time with one click.
- 100% on-device
- Works offline & air-gapped
- GDPR by architecture
- OpenAI
- Claude
- Gemini
- Copilot
- Mistral
- Ollama
- Perplexity
- Meta AI
- + every other provider
Patronus Protect
This is what launches.
Patronus Protect is the full version: the on-device AI firewall with real-time enforcement. The table shows what it adds over the free Monitor edition, and your first month of it is free if you are on the waitlist.
| Patronus MonitorFree | Patronus ProtectPaid · first month free | |
|---|---|---|
| AI inventory & shadow AI discovery | ||
| Live visibility into AI traffic (apps, browsers, agents) | ||
| Tray status & local activity view | ||
| Runs fully on-device, works offline | ||
| Blocking & redaction (allow, flag, redact, block) | ||
| Policies per provider, tool and capability | ||
| Prompt injection & PII protection | ||
| Control for autonomous agents & MCP servers |
Downloads paused until launch
The full release is almost ready. Join the waitlist and you get one month of Patronus Protect free at launch.
Join the waitlistInstallation
Up and running in three steps
Install
Open the .dmg and drag Patronus into Applications, or run the Windows installer.
Grant permissions
Approve the network extension on first launch so Patronus can see AI traffic. The app guides you through it.
Done, full visibility
The tray icon shows live AI activity on the device. When you want enforcement on top, request a Protect trial.
Detailed setup, permissions and rollout guidance: Open the docs
Patronus Protect in detail
Your Rules. Your Traffic. Your Policies.
This is what the full version looks like: policies, AI blocker and governance run 100% on-device, no external resources needed to detect, protect and govern your AI infrastructure.

Patronus Tray
Endpoint tray status for quick visibility into active protection, monitoring state, and local controls.

Policies
Policy controls for provider rules, capabilities, and governance decisions across supported AI tools. Protect only.

AI Inventory
AI inventory for discovered tools, provider usage, and endpoint-level activity across the organization.

AI Capabilities
Capability mapping for understanding what AI tools can access and how each capability is categorized.
Product Video
See Patronus Protect in Action!
See how Patronus works across apps and how to configure policies with immediate effect.