Prevent Data Leaks to ChatGPT

Your developers use ChatGPT every day. Make sure they don't accidentally share your secrets.

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The Problem

ChatGPT is the most popular AI tool among developers. They paste code snippets, error logs, database queries, and configuration files to get help debugging. These often contain API keys, connection strings, customer email addresses, and other sensitive data. Even with OpenAI's data retention policies, the data still crosses your network boundary.

The Solution

The AxSentinel Chrome extension scans every message in the ChatGPT interface before it's sent. If PII or secrets are detected, the message is blocked with a clear warning. Regex scanning works instantly in the browser. For ML-powered detection, the extension connects to a local proxy.

Get Started in Minutes

1

Install the Chrome extension

Install from the Chrome Web Store. The extension activates automatically on chatgpt.com, claude.ai, gemini.google.com, and other AI chat sites.

2

Optional: Start the local proxy for ML scanning

For deeper detection beyond regex patterns, run the scanner binary as a local proxy. The extension auto-connects.

~/.axsentinel/sentinel --proxy --port 18900
3

Test it

Open ChatGPT and type a message containing a fake SSN (123-45-6789). The extension should block the message with a warning overlay.

Key Features

Instant browser-side scanning

Regex patterns are checked in the browser — no proxy needed for common patterns like SSNs, credit cards, and AWS keys.

Works on chatgpt.com

Scans the message input field in real time. Also works on Claude.ai, Gemini, DeepSeek, Mistral, and Perplexity.

Non-disruptive UX

Clean messages send normally. Only messages with detected PII/secrets show a warning overlay.

ML-powered upgrade path

Connect the local proxy for ML scanning that catches custom tokens and non-standard secret formats.

Frequently Asked Questions

Does the extension read my ChatGPT conversations?
No. The extension only scans outbound messages (what you type). It never reads AI responses or conversation history.
Does it work with ChatGPT Plus and GPT-4?
Yes. The extension scans the message input regardless of which ChatGPT plan or model you use.
Does it send my data anywhere?
No. All scanning happens locally in your browser (regex) or on your machine (ML proxy). The extension never sends page content to our servers.
What about ChatGPT's API?
For the API, use the proxy mode with your API base URL pointed at AxSentinel. The Chrome extension is for the web interface.

Ready to secure your AI workflow?

Free tier includes regex scanning for unlimited developers. Pro adds ML-powered detection and the compliance dashboard.

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Also available for

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