InstantDB MCP vs Query | Supabase MCP Server

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

	InstantDB MCP Create, manage, and query your InstantDB apps, schemas, permissions, and data from your AI editor. Unverified HTTP (remote) OAuth TypeScript	Query \| Supabase MCP Server Safely run SQL, manage schema, call the Supabase Management API & Auth Admin from your IDE — with built-in safety controls. Unverified stdio (local) API key Python
Category	Databases	Databases
Language	TypeScript	Python
Transport	HTTP (remote)	stdio (local)
Auth	OAuth	API key
GitHub stars	10k	826
Last commit	1 month ago	2 months ago
Verified
Actively maintained
Install	`npx -y @instantdb/mcp --token <token>`	`pipx install supabase-mcp-server`
Repo	Open	Open

Verdict

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

Pick Query | Supabase MCP Server if you want a local (stdio) server that keeps data on your machine, and you need the broadest set of tools.

Add InstantDB MCP

Install / run

npx -y @instantdb/mcp --token <token>

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

{
  "mcpServers": {
    "instantdb-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://mcp.instantdb.com/mcp"
      ]
    }
  }
}

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

Add Query | Supabase MCP Server

Install / run

pipx install supabase-mcp-server

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

{
  "mcpServers": {
    "query-supabase-mcp-server": {
      "command": "/full/path/to/supabase-mcp-server",
      "args": [],
      "env": {
        "QUERY_API_KEY": "your-api-key",
        "SUPABASE_PROJECT_REF": "your-project-ref",
        "SUPABASE_DB_PASSWORD": "your-db-password",
        "SUPABASE_REGION": "us-east-1",
        "SUPABASE_ACCESS_TOKEN": "your-access-token",
        "SUPABASE_SERVICE_ROLE_KEY": "your-service-role-key"
      }
    }
  }
}

FAQ

InstantDB MCP or Query | Supabase MCP Server — which is better?

Pick InstantDB MCP if you prefer the more popular, battle-tested option, and you want a hosted/remote server with nothing to install. Pick Query | Supabase MCP Server if you want a local (stdio) server that keeps data on your machine, and you need the broadest set of tools.

Can I use both InstantDB MCP and Query | 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 InstantDB MCP and Query | Supabase MCP Server work with Claude, Cursor and Windsurf?

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

View InstantDB MCP →View Query | Supabase MCP Server →More comparisons →