LocalFree

Umbryn MCP server

Rinava/umbryn-mcp

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

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Install Umbryn in Claude Code

Claude Code
claude mcp add umbryn -- uvx umbryn-mcp
mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)
{
  "mcpServers": {
    "umbryn": {
      "command": "uvx",
      "args": [
        "umbryn-mcp"
      ]
    }
  }
}

Frequently asked questions

What does the Umbryn MCP server do?

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

Is the Umbryn MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does Umbryn run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add Umbryn to Claude Code?

Run: claude mcp add umbryn -- uvx umbryn-mcp

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