Let your team use AI.
Without leaking secrets.
Gateman adds lightweight guardrails to tools like ChatGPT and Claude—so employees don’t accidentally paste credentials, source code, or customer data into AI tools.
No prompt storage by default · On-device checks · Built for startups
AI Assistant
Sure, I can help you analyze that customer data. Please provide the CSV content.
input.csv
id,name,email,cc_number
101,John Doe,john@example.com,4532-xxxx...
102,Jane Smith,jane@corp.com,5543-xxxx...
Content Warning
Your message violates company policy regarding sensitive data sharing with AI tools.
We never store your prompt text
Securing AI adoption at
Gateman is a seatbelt for AI usage.
Gateman sits quietly in the browser and watches for high-risk mistakes before they happen, ensuring your data stays yours.
How it works
Set your AI rules
Define exactly what is off-limits for your organization:
Secrets & credentials
- Customer personal data
No YAML. No policy docs.
Lightweight enforcement
When a user tries to send risky content to an AI:
Gateman warns them
Or blocks it outright (critical cases)
Checks run locally, on-device.
Get signal, not noise
See high-level insights without invading privacy:
Rule violations
What was blocked vs warned
Your prompts are never stored.
Your team already uses AI. Protect it.
Gateman enforces AI usage rules where mistakes actually happen: in the browser.
On-device checks. No raw prompts stored.