NestDaddy

Deus Witness

io.github.sipkigroup/witness · v0.2.70

MCP proxy: holds risky tool calls for passkey approval; signed receipts you can check offline.

Connect Runs on your machine

Terminal
claude mcp add witness -e DEUS_WITNESS_KEY=<DEUS_WITNESS_KEY> -e DEUS_WITNESS_URL=<DEUS_WITNESS_URL> -- uvx deus-witness==0.2.70
claude_desktop_config.json
{
  "mcpServers": {
    "witness": {
      "command": "uvx",
      "args": [
        "deus-witness==0.2.70"
      ],
      "env": {
        "DEUS_WITNESS_KEY": "<DEUS_WITNESS_KEY>",
        "DEUS_WITNESS_URL": "<DEUS_WITNESS_URL>"
      }
    }
  }
}
~/.cursor/mcp.json
{
  "mcpServers": {
    "witness": {
      "command": "uvx",
      "args": [
        "deus-witness==0.2.70"
      ],
      "env": {
        "DEUS_WITNESS_KEY": "<DEUS_WITNESS_KEY>",
        "DEUS_WITNESS_URL": "<DEUS_WITNESS_URL>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "witness": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "deus-witness==0.2.70"
      ],
      "env": {
        "DEUS_WITNESS_KEY": "<DEUS_WITNESS_KEY>",
        "DEUS_WITNESS_URL": "<DEUS_WITNESS_URL>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

NameDescription
DEUS_WITNESS_KEY
Required, secret
Agent key (dwk_...) created in your Deus Witness account.
DEUS_WITNESS_URL
Optional
Witness service URL.

Details

Package[email protected] (PYPI, stdio)
First published13 Nov 2026
Last updated13 Nov 2026
Registry nameio.github.sipkigroup/witness

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