Mcp Server Motherduck

io.github.motherduckdb/mcp-server-motherduck · v1.1.1

SQL analytics and data engineering for AI Assistants and IDEs

Source code Set it up

Connect Runs on your machine

Terminal

claude mcp add mcp-server-motherduck -e motherduck_token=<motherduck_token> -e MOTHERDUCK_TOKEN=<MOTHERDUCK_TOKEN> -e HOME=<HOME> -e AWS_ACCESS_KEY_ID=<AWS_ACCESS_KEY_ID> -e AWS_SECRET_ACCESS_KEY=<AWS_SECRET_ACCESS_KEY> -e AWS_SESSION_TOKEN=<AWS_SESSION_TOKEN> -e AWS_DEFAULT_REGION=<AWS_DEFAULT_REGION> -e AWS_ENDPOINT=<AWS_ENDPOINT> -- uvx mcp-server-motherduck==1.1.1

claude_desktop_config.json

{
  "mcpServers": {
    "mcp-server-motherduck": {
      "command": "uvx",
      "args": [
        "mcp-server-motherduck==1.1.1"
      ],
      "env": {
        "motherduck_token": "<motherduck_token>",
        "MOTHERDUCK_TOKEN": "<MOTHERDUCK_TOKEN>",
        "HOME": "<HOME>",
        "AWS_ACCESS_KEY_ID": "<AWS_ACCESS_KEY_ID>",
        "AWS_SECRET_ACCESS_KEY": "<AWS_SECRET_ACCESS_KEY>",
        "AWS_SESSION_TOKEN": "<AWS_SESSION_TOKEN>",
        "AWS_DEFAULT_REGION": "<AWS_DEFAULT_REGION>",
        "AWS_ENDPOINT": "<AWS_ENDPOINT>"
      }
    }
  }
}

~/.cursor/mcp.json

{
  "mcpServers": {
    "mcp-server-motherduck": {
      "command": "uvx",
      "args": [
        "mcp-server-motherduck==1.1.1"
      ],
      "env": {
        "motherduck_token": "<motherduck_token>",
        "MOTHERDUCK_TOKEN": "<MOTHERDUCK_TOKEN>",
        "HOME": "<HOME>",
        "AWS_ACCESS_KEY_ID": "<AWS_ACCESS_KEY_ID>",
        "AWS_SECRET_ACCESS_KEY": "<AWS_SECRET_ACCESS_KEY>",
        "AWS_SESSION_TOKEN": "<AWS_SESSION_TOKEN>",
        "AWS_DEFAULT_REGION": "<AWS_DEFAULT_REGION>",
        "AWS_ENDPOINT": "<AWS_ENDPOINT>"
      }
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "mcp-server-motherduck": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "mcp-server-motherduck==1.1.1"
      ],
      "env": {
        "motherduck_token": "<motherduck_token>",
        "MOTHERDUCK_TOKEN": "<MOTHERDUCK_TOKEN>",
        "HOME": "<HOME>",
        "AWS_ACCESS_KEY_ID": "<AWS_ACCESS_KEY_ID>",
        "AWS_SECRET_ACCESS_KEY": "<AWS_SECRET_ACCESS_KEY>",
        "AWS_SESSION_TOKEN": "<AWS_SESSION_TOKEN>",
        "AWS_DEFAULT_REGION": "<AWS_DEFAULT_REGION>",
        "AWS_ENDPOINT": "<AWS_ENDPOINT>"
      }
    }
  }
}

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

Name	Description
`motherduck_token` Optional, secret	Access token for MotherDuck connections (alternative to --motherduck-token)
`MOTHERDUCK_TOKEN` Optional, secret	Access token for MotherDuck connections (alternative to --motherduck-token)
`HOME` Optional	Used by DuckDB for extensions and config. Override with --home-dir if not set.
`AWS_ACCESS_KEY_ID` Optional, secret	AWS access key for S3 database connections
`AWS_SECRET_ACCESS_KEY` Optional, secret	AWS secret access key for S3 database connections
`AWS_SESSION_TOKEN` Optional, secret	AWS session token for temporary credentials
`AWS_DEFAULT_REGION` Optional	AWS region for S3 database connections
`AWS_ENDPOINT` Optional	AWS endpoint for S3 database connections

Details

Package	`[email protected]` (PYPI, stdio)
First published	11 Nov 2026
Last updated	11 Nov 2026
Registry name	`io.github.motherduckdb/mcp-server-motherduck`

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Live status

Local install

Installed and run on your own machine, so there is no public endpoint to check.

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