MCP server · Databases

MotherDuck / DuckDB MCP

Name: MotherDuck / DuckDB MCP
Author: motherduckdb

Local MCP server for querying DuckDB files, in-memory databases and MotherDuck cloud with SQL.

Checked 2026-10-30

Install

Cursor / Claude Desktop (mcpServers JSON)

{
  "mcpServers": {
    "DuckDB (in-memory, r/w)": {
      "command": "uvx",
      "args": ["mcp-server-motherduck", "--db-path", ":memory:", "--read-write", "--allow-switch-databases"]
    }
  }
}

Claude Code

claude mcp add --scope user duckdb --transport stdio -- uvx mcp-server-motherduck --db-path :memory: --read-write --allow-switch-databases

Replace placeholder paths and keys with your own. Never paste real secrets into shared configs.

Verification note

Config snippet copied verbatim from the official README on 2026-10-30. Not run by Stack Registry.

Official README ↗

Repo: motherduckdb/mcp-server-motherduck
Maintainer: motherduckdb
Stars: ★ 536
Commit: 2026-10-26
License: MIT
Auth: Key optional
Tags: duckdb motherduck sql

Install

Verification note

Same drawer: Databases