Keep your code private
while using Cursor or Claude Code
Self-host our privacy layer that masks sensitive data before AI tools send it to OpenAI/Anthropic. Use Cursor, Claude Code & Cline safely.
5-minute setup
Docker deploy, point Cursor to localhost, keep coding
Self-hosted control
Runs entirely on your premises. Zero data leaves your network
Regex + classifier model
Regex patterns + lightweight LLM running locally to index your code and detect sensitive data
const config = {
apiKey: 'sk-proj-abc123xyz',
dbUrl: 'postgres://user:pass@db.internal',
jwtSecret: 'eyJhbGciOiJIUzI1NiIs...'
}
const config = {
apiKey: '[API_KEY_1]',
dbUrl: '[DATABASE_URL_1]',
jwtSecret: '[JWT_TOKEN_1]'
}The problem with AI coding tools
They're amazing for productivity. But they send your code to OpenAI and Anthropic by default.
What gets exposed
- API keys (OpenAI, Stripe, AWS, Google Cloud)
- Database credentials and connection strings
- Server hostnames and IP addresses
- Proprietary algorithms and business logic
- Client project code and sensitive data
Not a problem with Sheathe
- All sensitive data masked automatically
- Keep using your favorite AI tools unchanged
- Self-hosted on your machine or server
- $400 lifetime vs $240+/year subscriptions
- Full audit trail of what data was protected
Works with every AI coding tool
Transparent proxy that adds privacy without changing your workflow
5-minute setup
Docker deploy, point your AI tools to localhost:8866, keep coding. No learning curve.
Universal compatibility
Works with Cursor, Claude Code, Cline, and any future AI coding tools.
Regex + local LLM
Combines regex patterns with a local LLM classifier to detect API keys, credentials, IPs, and sensitive data while preserving code functionality.
Self-hosted control
Runs entirely on your machine. Your code never touches third-party servers.
Lifetime license
$400 one-time purchase vs $20+/month subscriptions. Pay once, use forever.
Privacy logs
See exactly what data was masked and when. Full transparency into your privacy protection.
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
Then change the endpoint in your favorite assistant
More integrations are coming soon