---
id: pgvector
version: "0.5.0"
license: MIT
license_treatment: permissive
maintenance: active
---

# pgvector — pgvector support for Python

License: permissive · Maintenance: active · Popularity: top 1,000 on PyPI

## Install

pip install pgvector
uv add pgvector
poetry add pgvector

## Description

# pgvector-python

[pgvector](https://github.com/pgvector/pgvector) support for Python

Supports [Django](https://github.com/django/django), [SQLAlchemy](https://github.com/sqlalchemy/sqlalchemy), [SQLModel](https://github.com/tiangolo/sqlmodel), [Psycopg 3](https://github.com/psycopg/psycopg), [Psycopg 2](https://github.com/psycopg/psycopg2), [asyncpg](https://github.com/MagicStack/asyncpg), [pg8000](https://codeberg.org/tlocke/pg8000), and [Peewee](https://github.com/coleifer/peewee)

[![Build Status](https://github.com/pgvector/pgvector-python/actions/workflows/build.yml/badge.svg)](https://github.com/pgvector/pgvector-python/actions)

## Installation

Run:

```sh
pip install pgvector
```

And follow the instructions for your database library:

- [Django](#django)
- [SQLAlchemy](#sqlalchemy)
- [SQLModel](#sqlmodel)
- [Psycopg 3](#psycopg-3)
- [Psycopg 2](#psycopg-2)
- [asyncpg](#asyncpg)
- [pg8000](#pg8000)
- [Peewee](#peewee)

Or check out some examples:

- [Retrieval-augmented generation](https://github.com/pgvector/pgvector-python/blob/master/examples/rag/example.py) with Ollama
-...

## AI interpretation — verify before relying

Provides Python bindings for pgvector, enabling vector storage and similarity search in PostgreSQL through multiple database libraries and ORMs.

Verdict: A well-maintained, actively developed library for vector operations in PostgreSQL with broad ORM support. Zero known vulnerabilities, MIT-licensed, and no external Python dependencies make it a low-friction choice for embedding-based applications.

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