Open Source · MIT License

Your AI connected to your world,
fully under your control.

Your cloud AI

OSMOzzz

OSMOzzz acts as a customs officer
between your sensitive data and cloud AIs.

OSMOzzz replaces [OSMOzzz] → Z8xJNaS7f82

Response from your AI

Z8xJNaS7f82 acts as a customs officer
between your sensitive data and cloud AIs.

Connect your AI to everything around you — while staying in control of what it sees and does.

Download for macOSmacOS 12+ · Free · Open Source

What is OSMOzzz?

OSMOzzz is a local MCP server that acts as an indispensable security layer between your AI and your sensitive data.

Without it, every query your AI makes — searching your emails, reading your files, browsing your messages — sends your raw data directly to external servers with no filter, no trace, and no control. OSMOzzz intercepts every request: it indexes your data locally, applies automatic redaction of credit card numbers, IBANs, API keys and personal details, and replaces real identities with aliases before your AI ever sees them.

In a world where AI models are increasingly connected to everything, OSMOzzz is the only barrier standing between your most sensitive data and the cloud. Nothing leaves your machine unfiltered. Nothing happens without your explicit approval.

AI alone VS AI + OSMOzzz

Connecting a tool directly to your AI via MCP works — but at a cost.

AI + MCP
AI + OSMOzzz + MCP
✕Your API tokens are stored in your AI client config — the provider has access to them
✕Raw data (emails, files, messages) is sent unfiltered to the AI provider servers
✕No control over what sensitive data is transmitted — credit cards, IBANs, passwords go through as-is
✕No intermediate layer between your AI and your tools — actions go through directly
✕No trace of what your AI accessed or did on your behalf
✓Your tokens stay in ~/.osmozzz on your machine — never transmitted to the AI provider
✓You control exactly what data is transmitted to your AI — not your raw files
✓Configure which sensitive data to redact — credit cards, IBANs, API keys, phone numbers
✓Configure identity aliases — your AI can work with pseudonyms instead of your real contacts
✓Configure an approval layer for actions — and verify any result via cryptographic signature (HMAC-SHA256)

OSMOzzz is the firewall between your AI and your data.

Everything your AI can access

You choose what your AI can access. Everything is configurable.

Local
Gmail
Chrome
Safari
iMessage
Apple Notes
Calendar
Terminal
Files
Cloud
Notion
GitHub
Linear
Jira
Supabase

Give your AI access to your world.

Open source. You decide what your AI sees.

Download for macOS
View on GitHub →