Cursor
Privacy
Use Cursor with
additional privacy protection
Keep using the Cursor IDE you love while protecting sensitive code.
Our privacy layer masks API keys, .env files, and proprietary data
// production.js
const API_KEY = 'sk-live-abc123'
const DB_HOST = '10.0.1.42'
const ADMIN_PWD = 'P@ssw0rd!'
fetch('https://api.internal.com')// production.js
const API_KEY = '[API_KEY_1]'
const DB_HOST = '[IP_ADDR_1]'
const ADMIN_PWD = '[PASSWORD_1]'
fetch('[INTERNAL_URL_1]')Why Cursor needs
more privacy protection
Cursor is amazing for AI-powered coding. But it sends your code to OpenAI or Anthropic by default.
Without Sheathe
- API keys sent to OpenAI servers
- .env files and secrets exposed
- Proprietary code visible to AI
- IP addresses and hostnames leaked
- No control over data usage
With Sheathe
- API keys masked automatically
- .env files protected completely
- Sensitive code stays private
- IPs and hostnames anonymized
- Full control over your data
Host our privacy layer on your premises
Deploy via a Bash one-liner
Configure your sensitive data types
Let it index your codebase, docs and tickets
Done - Sheathe is ready to process requests
Perfect integration with Cursor
Built specifically to work seamlessly with Cursor's workflow
Minimal latency added
Adds only ~90ms to each request. Cursor stays fast and responsive with AI suggestions.
All Cursor features
Chat, autocomplete, codebase analysis - everything works exactly as before, just privately.
Smart data detection
Uses both regex patterns and our LLM classifier that runs on your infrastructure to intelligently detect and mask API keys, IPs, hostnames, DB names, tables, columns, and other sensitive patterns.
Custom configuration
Choose what data gets masked. Custom rules for your specific codebase and workflow.
Privacy audit logs
See exactly what data was masked and when. Full transparency into privacy protection.
Unlimited seats for teams
Deploy across your entire team. Centralized configuration and monitoring for all Cursor users.
Pricing
Install Sheathe in any environment, whether that's AWS or a workstation in your home
Ready to use Cursor safely?
Join developers who use Cursor with complete privacy protection