InstantDB MCP vs Postgres MCP Pro

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	Postgres MCP Pro Read/write Postgres access plus index tuning, EXPLAIN plans, and database health analysis for AI agents. Verified stdio (local) API key Python
Category	Databases	Databases
Language	TypeScript	Python
Transport	HTTP (remote)	stdio (local)
Auth	OAuth	API key
GitHub stars	10k	2.9k
Last commit	1 day ago	3 months ago
Verified
Actively maintained
Install	`npx -y @instantdb/mcp --token <token>`	`uvx postgres-mcp --access-mode=restricted`
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 Postgres MCP Pro if you want a local (stdio) server that keeps data on your machine, and you want a verified, documented setup.

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 Postgres MCP Pro

Install / run

uvx postgres-mcp --access-mode=restricted

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

{
  "mcpServers": {
    "postgres-mcp-pro": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "DATABASE_URI",
        "crystaldba/postgres-mcp",
        "--access-mode=restricted"
      ],
      "env": {
        "DATABASE_URI": "postgresql://<user>:<password>@<host>:5432/<dbname>"
      }
    }
  }
}

Requires Docker to be installed and running.

FAQ

InstantDB MCP or Postgres MCP Pro — 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 Postgres MCP Pro if you want a local (stdio) server that keeps data on your machine, and you want a verified, documented setup.

Can I use both InstantDB MCP and Postgres MCP Pro?

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 Postgres MCP Pro work with Claude, Cursor and Windsurf?

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

View InstantDB MCP →View Postgres MCP Pro →More comparisons →