Trestle
Local secret scanner with an MCP server so coding agents check their own output
About Trestle
Trestle is a local secret scanner built specifically for AI-assisted development, on the premise that code an agent writes reaches more places than you intend — public commits scraped within seconds, client bundles shipped to every visitor, and today's commits training tomorrow's models. It scans every file and every commit before anything leaves your machine, recognising hundreds of real credential patterns (OpenAI, Anthropic, Stripe, GitHub, AWS, Google, Slack, Sentry and more), private keys and certificates in PEM, OpenSSH, PuTTY, PKCS, DER, x509 and PGP form, plus JKS, KeePass, BIP39, URLs and headers — and it can still flag an unfamiliar key by weighing entropy, variable naming and surrounding context. The integration surface is the interesting part: an MCP server means Claude Code, Cursor, Copilot and Codex can call the scanner themselves and verify their own output before writing it, alongside a native VS Code extension and a language server for Neovim, Helix, Zed and JetBrains. The Pro tier adds remediation guidance — how to lift the secret out of source, what to put in .env locally, and per-platform rotation playbooks for AWS Secrets Manager, GitHub Actions, Vercel, Netlify, Kubernetes Secrets and Doppler, chosen from the deployment targets it finds in your repository.
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Key Features
Trestle Pros & Cons
✅ Pros
- +Runs locally — nothing about your code leaves the machine
- +The agent can verify its own diff instead of you catching it later
- +Editor coverage well beyond VS Code via LSP
⚠️ Cons
- −Pricing is not readable without loading the page in a browser
- −Entropy-based detection will produce some false positives
- −Overlaps with free scanners like gitleaks for basic use
Who Is Trestle Best For?
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Complete Your Security Stack
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