# pgvector-elixir

> pgvector-elixir is the Elixir client for pgvector, allowing vector similarity search and operations from Elixir/Phoenix apps connected to Postgres. Supports Ecto integration for seamless queries with HNSW/IVF indexes and distance metrics. Ideal for functional web apps with semantic search; extends pgvector ecosystem to Elixir BEAM VM, offering concurrent high-throughput vs. single-threaded clients.

- **URL:** https://github.com/pgvector/pgvector-elixir
- **Category:** Postgres Vector Extensions
- **Tags:** Sdk, Pgvector, Vector Store, Elixir Client, Ecto Integration, Phoenix, Functional Programming, Concurrent
- **Updated:** 2026-04-24 07:22
- **Canonical page:** https://vectordb.ever.works/vi/items/pgvector-elixir

## Details

# pgvector-elixir

Elixir wrapper for the pgvector PostgreSQL extension, providing vector types and similarity search support for Elixir applications using Ecto and Postgrex.

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## Overview
- **Type**: SDK / Library
- **Ecosystem**: Elixir, PostgreSQL (pgvector)
- **Category**: sdks-libraries
- **License**: MIT
- **Source**: https://github.com/pgvector/pgvector-elixir

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## Features

### Core Functionality
- Elixir support for the [pgvector](https://github.com/pgvector/pgvector) PostgreSQL extension
- Integration with:
  - [Ecto](https://github.com/elixir-ecto/ecto)
  - [Postgrex](https://github.com/elixir-ecto/postrex)
- Provides vector column support for PostgreSQL-backed Elixir applications
- Enables similarity / vector search workflows via pgvector from Elixir code

### Usage & Integration
- Distributed as a Hex dependency for Elixir projects
- Simple dependency declaration in `mix.exs`:
  ```elixir
  {:pgvector, "~> 0.3.0"}
  ```
- Separate setup instructions for:
  - Ecto-based applications
  - Postgrex-based usage without Ecto
- Includes an `examples` directory demonstrating practical usage patterns

### Development & Maintenance
- Changelog (`CHANGELOG.md`) documenting releases and changes
- Automated workflows under `.github/workflows` (e.g., CI) for testing/quality
- Test suite under `test/` for reliability

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## Pricing
- Open-source library available under the **MIT License**
- No paid plans mentioned; free to use under the terms of the MIT license.

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