MCP Psycopg2

Name: MCP Psycopg2
Author: daedalus

by daedalusversion 0.1.0i★ –iRuns on your computer

Registry nameio.github.daedalus/mcp-psycopg2

Install

Overview

Description from the maker (original English)

MCP server exposing psycopg2 PostgreSQL database adapter functionality

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Databases & datasets

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
The registry lists no key to fill in.

You need

PyPIPython’s uv installed (for the uvx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "psycopg2": {
      "command": "uvx",
      "args": [
        "mcp-psycopg2"
      ]
    }
  }
}

Run this in your terminal

claude mcp add psycopg2 -- uvx mcp-psycopg2

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "psycopg2": {
      "command": "uvx",
      "args": [
        "mcp-psycopg2"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "psycopg2": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "mcp-psycopg2"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account daedalus, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Databases & datasetsi

More stars than 0% of the other 953 servers in this category
Published to the registry more recently than 8% of the other 953 servers in this category
Basic checks equal to or better than 100% of the other 953 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is MCP Psycopg2 safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.1.0) reached the registry 7 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Python (uv) on your computer.

What can I use instead?

In the same category: Supabase, MongoDB MCP Server, Elasticsearch MCP Server

Alternatives

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Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

mcp-psycopg2

MCP server exposing psycopg2 PostgreSQL database adapter functionality.

mcp-name: io.github.daedalus/mcp-psycopg2

Install

pip install mcp-psycopg2

Usage

from mcp_psycopg2 import mcp

Run the MCP server

mcp.run()

MCP Tools

The server exposes the following tools for interacting with PostgreSQL databases:

Connection Management

connect - Create a new database connection
close_connection - Close an existing connection
get_connection_info - Get connection details

Transaction Management

begin_transaction - Start a new transaction
commit_transaction - Commit the current transaction
rollback_transaction - Rollback the current transaction
set_isolation_level - Set transaction isolation level

Cursor Operations

create_cursor - Create a new cursor
close_cursor - Close a cursor
execute_query - Execute a SQL query
execute_many - Execute a query with multiple parameter sets
fetch_one - Fetch one row
fetch_many - Fetch multiple rows
fetch_all - Fetch all remaining rows

SQL Composition

quote_identifier - Quote an SQL identifier
mogrify - Return query string after parameter binding

Type Registration

register_json - Register JSON type adapter
register_hstore - Register hstore type adapter
register_composite - Register composite type adapter

COPY Operations

copy_from - Copy data from file to table
copy_to - Copy data from table to file
copy_expert - Execute custom COPY statement

Server-Side Cursors

create_named_cursor - Create a server-side named cursor
scroll_cursor - Scroll through cursor results

Large Objects

create_large_object - Create or open a large object
read_large_object - Read from a large object
write_large_object - Write to a large object

Information

get_server_version - Get PostgreSQL server version
get_backend_pid - Get backend process ID
get_dsn_parameters - Get connection parameters
get_notices - Get database notices
parse_dsn - Parse a connection string
make_dsn - Create a connection string

Utility

cancel_query - Cancel the current database operation
set_session - Set session parameters
list_connections - List all active connections
list_cursors - List all active cursors

Development

git clone https://github.com/daedalus/mcp-psycopg2.git

cd mcp-psycopg2 pip install -e ".[test]"

run tests

pytest

format

ruff format src/ tests/

lint

ruff check src/ tests/

type check

mypy src/

MCP Psycopg2

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Databases & datasetsi

Common questions

Alternatives

Supabase

MongoDB MCP Server

Elasticsearch MCP Server

README from the maker

mcp-psycopg2

Install

Usage

Run the MCP server

MCP Tools

Connection Management

Transaction Management

Cursor Operations

SQL Composition

Type Registration

COPY Operations

Server-Side Cursors

Large Objects

Information

Utility

Development

run tests

format

lint

type check