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.

	DuckDB MCP Server Query and manage a local DuckDB database from your LLM via the Model Context Protocol. Unverified stdio (local) No auth Stale 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	None	OAuth
GitHub stars	177	2.7k
Last commit	1 year ago	1 month ago
Verified
Actively maintained
Install	`npx -y @smithery/cli install mcp-server-duckdb --client claude`	`Add remote URL https://mcp.supabase.com/mcp to your MCP client (OAuth login)`
Repo	Open	Open

Verdict

Pick DuckDB MCP Server if you want a local (stdio) server that keeps data on your machine, and you want zero-setup with no API key.

Pick Supabase MCP Server if you want the official, vendor-maintained server, and you prefer the more popular, battle-tested option.

Add DuckDB MCP Server

Install / run

npx -y @smithery/cli install mcp-server-duckdb --client claude

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

{
  "mcpServers": {
    "duckdb-mcp-server": {
      "command": "uvx",
      "args": [
        "mcp-server-duckdb",
        "--db-path",
        "~/mcp-server-duckdb/data/data.db"
      ]
    }
  }
}

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

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

Pick DuckDB MCP Server if you want a local (stdio) server that keeps data on your machine, and you want zero-setup with no API key. Pick Supabase MCP Server if you want the official, vendor-maintained server, and you prefer the more popular, battle-tested option.

Can I use both 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 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 DuckDB MCP Server →View Supabase MCP Server →More comparisons →