MotherDuck / DuckDB MCP Server vs Supabase MCP Server

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	Supabase MCP Server Official Supabase server: manage tables, run SQL, branches, configs and edge functions from your AI client. Verified HTTP (remote) OAuth TypeScript
Category	Databases	Databases
Language	Python	TypeScript
Transport	stdio (local)	HTTP (remote)
Auth	API key	OAuth
GitHub stars	800	2.7k
Last commit	1 month ago	1 month ago
Verified
Actively maintained
Install	`uvx mcp-server-motherduck --db-path md: --read-write`	`Add remote URL https://mcp.supabase.com/mcp to your MCP client (OAuth login)`
Repo	Open	Open

Verdict

Pick MotherDuck / DuckDB MCP Server if you want a local (stdio) server that keeps data on your machine.

Pick Supabase MCP Server if you prefer the more popular, battle-tested option, and you want a hosted/remote server with nothing to install.

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 Supabase MCP Server

Install / run

Add remote URL https://mcp.supabase.com/mcp to your MCP client (OAuth login)

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

{
  "mcpServers": {
    "supabase-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://mcp.supabase.com/mcp?read_only=true&project_ref=<your-project-ref>"
      ]
    }
  }
}

Claude Desktop connects to remote servers through the `mcp-remote` proxy (installed on first run via npx). Restart Claude Desktop after saving.

FAQ

MotherDuck / DuckDB MCP Server or Supabase MCP Server — which is better?

Pick MotherDuck / DuckDB MCP Server if you want a local (stdio) server that keeps data on your machine. Pick Supabase MCP Server if you prefer the more popular, battle-tested option, and you want a hosted/remote server with nothing to install.

Can I use both MotherDuck / DuckDB MCP Server and Supabase 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 MotherDuck / DuckDB MCP Server and Supabase MCP Server 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 Supabase MCP Server →More comparisons →