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datadiffer

io.github.gauthierpiarrette/datadiffer · v0.1.0

Read-only table diffs with segment attribution: which slice of your data changed.

Connect Runs on your machine

Terminal
claude mcp add datadiffer -e DATADIFFER_CONFIG=<DATADIFFER_CONFIG> -- uvx datadiffer==0.1.0
claude_desktop_config.json
{
  "mcpServers": {
    "datadiffer": {
      "command": "uvx",
      "args": [
        "datadiffer==0.1.0"
      ],
      "env": {
        "DATADIFFER_CONFIG": "<DATADIFFER_CONFIG>"
      }
    }
  }
}
~/.cursor/mcp.json
{
  "mcpServers": {
    "datadiffer": {
      "command": "uvx",
      "args": [
        "datadiffer==0.1.0"
      ],
      "env": {
        "DATADIFFER_CONFIG": "<DATADIFFER_CONFIG>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "datadiffer": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "datadiffer==0.1.0"
      ],
      "env": {
        "DATADIFFER_CONFIG": "<DATADIFFER_CONFIG>"
      }
    }
  }
}

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
DATADIFFER_CONFIG
Optional
Path to datadiffer.toml holding named connections (run `datadiffer init` to scaffold one). Credentials never pass through tool arguments.

Details

Package[email protected] (PYPI, stdio)
First published27 Jul 2026
Last updated27 Jul 2026
Registry nameio.github.gauthierpiarrette/datadiffer

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