Mugatu Signal：面向 ChatGPT 和 Claude 的端侧提示词 DLP（零遥测）
Mugatu Signal – On-device prompt DLP for ChatGPT and Claude (0 telemetry)
Mugatu Signal 是一款本地优先的 Chrome 扩展，可在提交前拦截并遮蔽 ChatGPT、Claude、Gemini 和 Grok 提示词中的 API key、密钥、专有代码与客户数据，100% 端侧处理、零云端遥测。社区版永久免费、无需注册；专业版 $100/年，企业版每席位每年 $150 起，支持 Chrome/Edge 托管策略部署、SSO 与 SLA。
100% Free Forever Core • 1-Click Chrome Install • No Signup Required
Never leak an API key or client secret to ChatGPT again.
The local-first AI privacy shield that intercepts and masks proprietary code, credentials, and client data in ChatGPT, Claude, and Gemini before you hit submit. 100% on-device. Zero cloud telemetry.
Add to Chrome — It's FreeView Pro & Fleet Plans
Works with ChatGPT, Claude, Gemini & Grok • 0% cloud telemetry • Free forever
TEST THE SHIELD · LIVE SIMULATOR SIGNAL ACTIVE
YOUR PROMPT1 SECRET DETECTED
Masked on this device
1 masked · 0 bytes exposed
WHAT THE AI SEESSAFE TO SEND
Why does this fail? client = OpenAI(api_key="[REDACTED_API_KEY]")
01
The human is where policy becomes action. Signal protects that exact moment—without turning productive employees into the enemy.
PLANS
Start free in one click. Scale when your team does.
Community Edition
$0Free forever
Core local masking for individuals.
- Real-time masking in ChatGPT, Claude, Gemini & Grok
- API keys, secrets & credentials detection
- 100% on-device processing
- No signup required
Most popular
Professional Seat
$100per year
One human seat = all browsers on one device.
- Everything in Community
- Custom client & project term rules
- Priority detection updates
- Email support
Enterprise Fleet
From $150per seat / year
Managed rollout for security teams.
- Everything in Pro
- Chrome / Edge managed policy deploy
- Fleet visibility dashboard
- SSO, SLA & DPA
Compare every feature on the full pricing page.
来源：Hacker News · signal.mugatuai.com