MCP Toolbox for Databases (BigQuery) vs MotherDuck / DuckDB MCP Server

A side-by-side comparison of two Databases servers — tools, transport, auth, maintenance, and copy-paste config for each.

	MCP Toolbox for Databases (BigQuery) Google's official MCP server with prebuilt BigQuery tools, querying datasets via Application Default Credentials. Verified stdio (local) OAuth Go	MotherDuck / DuckDB MCP Server Query local DuckDB files, in-memory DBs, S3, or MotherDuck cloud with read/write SQL. Verified stdio (local) API key Python
Category	Databases	Databases
Language	Go	Python
Transport	stdio (local)	stdio (local)
Auth	OAuth	API key
GitHub stars	16k	800
Last commit	1 month ago	2 months ago
Verified
Actively maintained
Install	`brew install mcp-toolbox && toolbox --prebuilt bigquery --stdio`	`uvx mcp-server-motherduck --db-path md: --read-write`
Repo	Open	Open

Verdict

Pick MCP Toolbox for Databases (BigQuery) if you prefer the more popular, battle-tested option, and you need the broadest set of tools.

Pick MotherDuck / DuckDB MCP Server if you prefer its approach (query local duckdb files, in-memory dbs, s3, or motherduck cloud with read/write sql).

Add MCP Toolbox for Databases (BigQuery)

Install / run

brew install mcp-toolbox && toolbox --prebuilt bigquery --stdio

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "mcp-toolbox-for-databases-bigquery": {
      "command": "/absolute/path/to/toolbox",
      "args": [
        "--prebuilt",
        "bigquery",
        "--stdio"
      ],
      "env": {
        "BIGQUERY_PROJECT": "<your-gcp-project-id>"
      }
    }
  }
}

Add MotherDuck / DuckDB MCP Server

Install / run

uvx mcp-server-motherduck --db-path md: --read-write

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "motherduck-duckdb-mcp-server": {
      "command": "uvx",
      "args": [
        "mcp-server-motherduck",
        "--db-path",
        "md:"
      ],
      "env": {
        "motherduck_token": "<your-motherduck-token>"
      }
    }
  }
}

Requires `uv` (the Python package runner). Install it from https://docs.astral.sh/uv/ if `uvx` is not found.

FAQ

MCP Toolbox for Databases (BigQuery) or MotherDuck / DuckDB MCP Server — which is better?

Pick MCP Toolbox for Databases (BigQuery) if you prefer the more popular, battle-tested option, and you need the broadest set of tools. Pick MotherDuck / DuckDB MCP Server if you prefer its approach (query local duckdb files, in-memory dbs, s3, or motherduck cloud with read/write sql).

Can I use both MCP Toolbox for Databases (BigQuery) and MotherDuck / DuckDB MCP Server?

Yes — MCP clients let you enable multiple servers at once. Add both configs to your client's mcpServers and use whichever tool fits the task.

Do MCP Toolbox for Databases (BigQuery) and MotherDuck / DuckDB MCP Server work with Claude, Cursor and Windsurf?

Both do. Copy the per-client config below into Claude Desktop, Cursor, or Windsurf.

View MCP Toolbox for Databases (BigQuery) →View MotherDuck / DuckDB MCP Server →More comparisons →