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

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

	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	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
Category	Databases	Databases
Language	Python	Go
Transport	stdio (local)	stdio (local)
Auth	API key	OAuth
GitHub stars	800	16k
Last commit	1 month ago	13 days ago
Verified
Actively maintained
Install	`uvx mcp-server-motherduck --db-path md: --read-write`	`brew install mcp-toolbox && toolbox --prebuilt bigquery --stdio`
Repo	Open	Open

Verdict

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).

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

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.

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>"
      }
    }
  }
}

FAQ

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

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

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

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

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

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