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mcp/harbor
Claude Desktop

three.ws Provenance for Claude Desktop

io.github.nirholas/provenance-mcp

Append-only, signed, on-chain-verifiable agent action log — record and audit what agents did.

client:Claude Desktop transport:stdio runtime:npm

Install three.ws Provenance in Claude Desktop

~/Library/Application Support/Claude/claude_desktop_config.json · windows: %APPDATA%\Claude\claude_desktop_config.json

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "provenance-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@three-ws/provenance-mcp"
      ],
      "env": {
        "THREE_WS_BASE": "<THREE_WS_BASE>",
        "THREE_WS_TIMEOUT_MS": "<THREE_WS_TIMEOUT_MS>",
        "THREE_WS_TOKEN": "<THREE_WS_TOKEN>",
        "THREE_WS_SIGNER_KEY": "<THREE_WS_SIGNER_KEY>"
      }
    }
  }
}

Settings → Developer → Edit Config opens this file. Restart the app after saving. Claude Desktop docs

three.ws Provenance in other clients

three.ws Provenance MCP server