pgext catalogs the PostgreSQL extension universe: 1,600+ extensions with metadata, dependencies, categories, and exact package availability across PostgreSQL versions, operating systems, and repositories (PGDG / Pigsty, APT / YUM).

It is a single static binary that does two things:

• Build the catalog: fetch repository metadata, parse APT/RPM packages, and maintain the curated extension knowledge base — all stored in PostgreSQL.
• Serve the catalog: a self-contained web app + JSON API, the same software that powers pgext.cloud.

All you need is a PostgreSQL database to hold the catalog:

export PGURL="postgres:///data"   # where the catalog lives (default: postgres:///data)

pgext init     # one-time setup: create the pgext schema and load catalog data
pgext serve    # web UI + JSON API at http://localhost:8432

That's it. Point your browser at http://localhost:8432.

pgext serve --db meta --listen :8080   # database name shorthand, custom port
curl 'localhost:8432/api/v1/ext?q=vector'   # query the JSON API

Download a single-binary release for Linux / macOS (amd64 / arm64) from the release page, or deb / rpm packages if you prefer a package manager.

Build from source (Go 1.26+, no CGO required):

git clone https://github.com/pgsty/pgext.git
cd pgext && go build -o pgext .

pgext init                    # setup everything (schema + reload)
pgext serve                   # serve web UI + JSON API (:8432)
pgext status                  # show metadata status

pgext reload                  # reload data: fetch + complete parse
pgext fetch                   # get repo metadata from upstream
pgext scan                    # scan local Pigsty repo metadata
pgext parse                   # atomically populate apt, dnf, bin, pkg
pgext recap                   # rebuild pkg from current catalog data

pgext ext <name>              # show extension information
pgext pkg <name>              # show package availability matrix
pgext bin <name> -p 17 -o el9 # show binary packages with URLs

pgext gen all                 # run every content generator
pgext pgxn                    # crawl PGXN dist metadata
pgext purge                   # drop the pgext schema

Run pgext help <command> for details on any command.

• Catalog website: pgext.cloud
• Documentation: doc.pgext.cloud
• Pigsty — battery-included PostgreSQL distribution: pigsty.io
• pig — the PostgreSQL extension package manager: github.com/pgsty/pig

Apache License 2.0 © Ruohang Feng