DarkMatter

io.github.darkmatter-hub/mcp-server

Tamper-evident records of AI agent decisions. Verify offline, or publish a proof link.

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Connect this server

Add this to your MCP client config — claude_desktop_config.json (Claude Desktop) or .cursor/mcp.json (Cursor).Suits: Claude Desktop · Cursor.

{
  "mcpServers": {
    "mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@darkmatterhub/mcp-server@0.3.1"
      ],
      "env": {
        "DARKMATTER_API_KEY": "<your DARKMATTER_API_KEY>",
        "DARKMATTER_SHARE": "false"
      }
    }
  }
}
Environment variables
  • DARKMATTER_API_KEYsecretOptional. Publishes each record to DarkMatter and returns a verification URL. Without it, records stay on local disk and verify offline.
  • DARKMATTER_SHAREOptional. Set to 'true' to make published records readable by anyone holding the link. Off by default.

A starting point — check the repository for exact arguments and setup. Restart your client after editing the config.

Category
Developer Tools
Version
0.3.1
Registry
deprecated
Published
8/20/2026

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Markdown — for your README

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Nice for visibility, but GitHub marks README links nofollow, so it doesn't pass authority. Use the HTML badge on your site as well.