# CloakLLM

> Open-source PII protection middleware for LLMs. Detect sensitive data, replace it with reversible tokens, and maintain tamper-evident audit logs — before prompts leave your infrastructure. Every artifact verifies independently with standard tools, so an auditor can check your evidence without CloakLLM's SDK and without trusting CloakLLM's code.

## What it is
- Open-source PII protection + verifiable audit evidence for LLM applications
- Language: Python & JavaScript SDKs, plus an MCP server and a standalone verifier
- License: MIT — runs entirely in your infrastructure; no data is sent to CloakLLM
- Focus: resolving the "Article 12 Paradox" — the EU AI Act requires logging every high-risk AI interaction, GDPR requires retaining no personal data. CloakLLM strips PII before it reaches any log, satisfying both.
- Detection: ~94% character-level scrub on a published hard-input benchmark; 13 locales
- Coverage: the record-keeping / evidence / PII-minimization slice of EU AI Act Articles 12, 19, 4a and 50 — every compliance report carries an honest per-article coverage matrix stating what CloakLLM provides and what remains the deployer's responsibility

## Key pages
- Product / how it works: https://cloakllm.dev/product
- For auditors (verify the evidence yourself): https://cloakllm.dev/for-auditors
- Documentation: https://cloakllm.dev/docs
- Usage guide: https://cloakllm.dev/docs/guide
- Essay — Why CloakLLM for the EU AI Act: https://cloakllm.dev/docs/why-cloakllm-for-eu
- Essay — Independent verifiability: https://cloakllm.dev/docs/independent-verifiability
- Whitepaper — The Article 12 Paradox: https://cloakllm.dev/whitepaper
- Essays index: https://cloakllm.dev/essays
- About: https://cloakllm.dev/about
- Contact: https://cloakllm.dev/contact

## Packages
- Python SDK: https://pypi.org/project/cloakllm/
- JavaScript SDK: https://www.npmjs.com/package/cloakllm
- MCP server: https://pypi.org/project/cloakllm-mcp/
- Standalone verifier: https://pypi.org/project/cloakllm-verifier/
- Source: https://github.com/cloakllm/CloakLLM

## Team
- Ziv Chen — Co-founder & CTO (https://www.linkedin.com/in/zivuch/)
- Adam Azani — Co-founder & CEO (https://www.linkedin.com/in/adam-azani-gotthilf/)
- Contact: team@cloakllm.dev