Sovereign Shield is no longer maintained (frozen September 2026). The extension keeps working as-is but will not be updated, not even for security fixes. Details in the README on GitHub.

The Sovereign Gateway

The same boundary as the browser extension, in front of your own app: watch a Swiss document get tokenized on the way out and restored on the way back, live in your browser.

1 · Pick a document
2 · Pick the model behind your app
5 Swiss identifiers tokenized · 0 cross the border
1Your document
real Swiss PII an employee pastes in
🛡 redactleaves 🇨🇭
2Sent to Gemini 3.5 Flash
Draft a short, warm reply in English confirming we'll investigate the double charge and refund it within five business days.
the only thing that crosses the border — 0 real values
🤖answers
3Gemini 3.5 Flash replies
the model only ever sees placeholders
🛡 restoreback 🇨🇭
4Delivered to your user
correct and personalised — and no PII ever left
✓ 0 personal-data elements crossed the borderGemini 3.5 Flash · sanitized in-browser, deterministically
Name ×1Swiss AHV / AVS ×1IBAN ×1Swiss phone ×1Email ×1
Kept in Switzerland
5
personal-data elements kept on-shore across 1 handoff

Shared across all visitors (Upstash Redis).