Need help with asyncpg?
Click the “chat” button below for chat support from the developer who created it, or find similar developers for support.

About the developer

5.1K Stars 304 Forks Apache License 2.0 727 Commits 149 Opened issues


A fast PostgreSQL Database Client Library for Python/asyncio.

Services available


Need anything else?

Contributors list

asyncpg -- A fast PostgreSQL Database Client Library for Python/asyncio

.. image:: :target: :alt: GitHub Actions status .. image:: :target:

asyncpg is a database interface library designed specifically for PostgreSQL and Python/asyncio. asyncpg is an efficient, clean implementation of PostgreSQL server binary protocol for use with Python's

framework. You can read more about asyncpg in an introductory
blog post 

asyncpg requires Python 3.6 or later and is supported for PostgreSQL versions 9.5 to 13. Older PostgreSQL versions or other databases implementing the PostgreSQL protocol may work, but are not being actively tested.


The project documentation can be found



In our testing asyncpg is, on average, 3x faster than psycopg2 (and its asyncio variant -- aiopg).

.. image:: :target:

The above results are a geometric mean of benchmarks obtained with PostgreSQL

client driver benchmarking toolbench 
_ in November 2020 (click on the chart to see full details).


asyncpg implements PostgreSQL server protocol natively and exposes its features directly, as opposed to hiding them behind a generic facade like DB-API.

This enables asyncpg to have easy-to-use support for:

  • prepared statements
  • scrollable cursors
  • partial iteration on query results
  • automatic encoding and decoding of composite types, arrays, and any combination of those
  • straightforward support for custom data types


asyncpg is available on PyPI and has no dependencies. Use pip to install::

$ pip install asyncpg

Basic Usage

.. code-block:: python

import asyncio
import asyncpg

async def run(): conn = await asyncpg.connect(user='user', password='password', database='database', host='') values = await conn.fetch( 'SELECT * FROM mytable WHERE id = $1', 10, ) await conn.close()

loop = asyncio.get_event_loop() loop.run_until_complete(run())


asyncpg is developed and distributed under the Apache 2.0 license.

We use cookies. If you continue to browse the site, you agree to the use of cookies. For more information on our use of cookies please see our Privacy Policy.