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Claude Desktop ATTRACTOR Verification, State & Evidence diff_json

How to: Claude Desktop ATTRACTOR Verification, State & Evidence diff_json

client:Claude Desktop transport:streamable-http tool:diff_json

Add ATTRACTOR Verification, State & Evidence to Claude Desktop

  1. 01

    Open ~/Library/Application Support/Claude/claude_desktop_config.json and merge this in. Keep any servers already there.

{
  "mcpServers": {
    "attractor-machine-commons": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://attractor-observatory-demo.vercel.app/mcp"
      ]
    }
  }
}
  1. 02

    Save the file and restart Claude Desktop.

  2. 03

    Ask for something diff_json does. Claude Desktop lists the server's tools on connect and calls diff_json itself — you do not invoke it by name.

  3. 04

    If nothing happens, check the server is running and that ATTRACTOR Verification, State & Evidence's identifier in your config matches the one above exactly.

Claude Desktop has no remote transport in its config file, so this bridges through mcp-remote. Restart the app after saving. Claude Desktop docs

Same tool, other clients

This list was read from the server itself, by connecting to it and calling tools/list on 24 September 2026. It is what the server actually exposes, not what its listing claims.

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.