Umbryn MCP

Official

by Rinava · Python

Redacts PII/PHI from text before it reaches an LLM. Fail-closed, self-hosted, no egress.

Topics

anonymizationde-identificationhealthcarehipaallmmcpmcp-servermodel-context-protocolnlpphipiipii-redactionprivacypythonredaction

Install

Configuration

Environment variables

UMBRYN_ENGINE

Detection engine: auto (default), regex, or presidio

UMBRYN_MIN_CONFIDENCE

Trust threshold (0-1); detections below it fail closed. Default 0.5

UMBRYN_DETECTION_FLOOR

Sensitivity floor (0-1); below this a signal is noise. Default 0.35

Add to VS Code Add to Cursor

claude_desktop_config.json

json

{
  "mcpServers": {
    "umbryn-mcp": {
      "command": "uvx",
      "args": [
        "umbryn-mcp"
      ],
      "env": {
        "UMBRYN_ENGINE": "<YOUR_UMBRYN_ENGINE>",
        "UMBRYN_MIN_CONFIDENCE": "<YOUR_UMBRYN_MIN_CONFIDENCE>",
        "UMBRYN_DETECTION_FLOOR": "<YOUR_UMBRYN_DETECTION_FLOOR>"
      }
    }
  }
}