Now in Public Beta

Protect Every AI
Conversation

Real-time jailbreak detection in your browser. Tamper-proof compliance certificates for your AI agents. One platform, two ways to stay safe.

7
AI Platforms
Real-time
Detection
100%
Tamper-Proof
Zero
Data Exposed

Works with every major AI platform

A
Claude
O
ChatGPT
G
Gemini
X
Grok
D
DeepSeek
M
Meta AI
C
OpenClaw

Chrome Extension for instant browser protection · MCP for Claude · REST API for any AI agent

Two Ways to Stay Safe

Whether you're chatting with AI in your browser or building AI-powered products, SENTINEL has you covered.

🛡

Chrome Extension

Install once, protect everywhere. SENTINEL monitors your conversations on ChatGPT, Claude, Gemini, Grok, DeepSeek, and Meta AI — detecting jailbreak attempts and prompt injection in real time.

  • No code required
  • Scans both your input and AI responses
  • Real-time alerts for suspicious activity
  • Works on 6 AI platforms
Get Started Free →
🔐

Compliance API

Build tamper-proof compliance into your AI products. SENTINEL's API generates cryptographic certificates that prove your agents behave within the boundaries you set — without exposing your data.

  • MCP-native for Claude, REST for everything else
  • Tamper-proof STARK certificates
  • Unbroken proof chains & public verification
  • Privacy-preserving by design
Developer Docs →

Chrome Extension

Real-time protection while you use AI. Install, paste your API key, and every conversation is monitored automatically.

Dual Scanning

SENTINEL scores both what you type and what the AI responds. Catches jailbreak attempts in your input and detects compromised outputs from the AI.

Instant Alerts

Chrome notifications fire the moment suspicious activity is detected. Different alert levels for input threats (caution) and output threats (critical).

Live Shield

A color-coded shield icon shows your safety status at a glance. Green means clear, yellow means caution, red means a threat was detected.

6 Platforms

Works on ChatGPT, Claude, Gemini, Grok, DeepSeek, and Meta AI. Each platform has a purpose-built content monitor for maximum accuracy.

Per-Tab Tracking

Each browser tab is tracked independently. Switch between AI platforms and each conversation has its own security status and scan history.

Export History

Download your complete scan history as JSON for auditing or compliance records. Every scan includes timestamp, platform, score, and source.

1

Get Your API Key

Sign up for a free SENTINEL account. You'll receive your API key by email — it takes less than a minute.

2

Install the Extension

Download the Chrome Extension, unzip it, and load it via chrome://extensions with Developer Mode enabled.

3

Activate & Go

Paste your API key into the extension popup. Every AI conversation is now monitored in real time across all 6 platforms.

Get a Free API Key → Download Extension (54 KB)
How to install in Chrome
  1. Sign up and get your free API key by email
  2. Download and unzip sentinel-extension.zip
  3. Open Chrome and go to chrome://extensions
  4. Enable Developer mode (toggle in the top right)
  5. Click Load unpacked and select the unzipped folder
  6. Click the SENTINEL shield icon in your toolbar and paste your API key
  7. Visit any supported AI platform — you're protected

Who It's For

From individual users to enterprise teams — if you use AI, SENTINEL keeps you safe.

Anyone Using AI Daily

Install the Chrome Extension and get real-time protection on ChatGPT, Claude, Gemini, Grok, DeepSeek, and Meta AI. No technical knowledge needed.

Security-Conscious Teams

Equip your team with browser-level jailbreak detection. Know immediately when someone attempts prompt injection on any AI platform.

AI Product Builders

Integrate SENTINEL's API to generate tamper-proof compliance certificates for your AI agents. Prove to regulators and customers that your AI behaves.

Regulated Industries

Healthcare, finance, legal — any industry where AI decisions affect people. Continuous compliance certification without exposing sensitive data.

See all use cases →

See It in Action

Generate a real compliance certificate right now.

Start Protecting Your AI Conversations

Get a free API key, install the Chrome Extension, and every AI conversation is monitored in real time.

Get Started Free → See How It Works