---
id: pystac-ext-storage
version: "2.0.1"
license: Apache-2.0
license_treatment: permissive
maintenance: active
---

# pystac-ext-storage — Storage extension for PySTAC

License: permissive · Maintenance: active · Downloads: 4.0M/mo

## What it is and what it does

pystac-ext-storage is a PySTAC extension package that adds standardized cloud storage metadata fields to STAC (Spatiotemporal Asset Catalog) items and assets. It implements the Storage Extension specification, allowing you to annotate assets with platform (e.g., S3, GCS, Azure), region, storage tier, and requester-pays configuration. The package supports both v2.0.0 and v1.0.0 of the Storage Extension schema.

You use it by importing the Storage class, attaching it to PySTAC items, and setting storage-related attributes. It depends only on pystac-core and is actively maintained with support for Python 3.10 through 3.13. The package version tracks the extension specification version it targets, with post-releases for code updates that don't change the spec version.

Use it for:

- Annotate geospatial imagery catalogs with the cloud storage platform and region where assets are hosted.
- Mark assets stored in requester-pays buckets so downstream tools know to handle billing correctly.
- Document storage tier (hot, cold, archive) for assets to inform retrieval cost and latency decisions.
- Build STAC catalogs that expose storage infrastructure details for multi-cloud or hybrid deployments.
- Standardize storage metadata across teams using the STAC Storage Extension specification.

## Worth the install?

AI-flagged interpretation of the facts above — verify before relying.

Extends PySTAC to add cloud storage metadata fields (platform, region, tier, requester-pays) to STAC assets via the Storage Extension specification.

Yes. Active maintenance, no known vulnerabilities, low install friction, and permissive licensing make it a safe choice. Install it if you are building or extending STAC catalogs and need to document cloud storage attributes for your assets.

## Install

pip install pystac-ext-storage
uv add pystac-ext-storage
poetry add pystac-ext-storage

## Installing pystac-ext-storage

Before you install: Low friction; pure Python wheel with a single runtime dependency (pystac-core). Active maintenance with a release 4 days old and last commit on 2026-08-10.

License in practice: Apache-2.0 permissive license allows commercial use, modification, and distribution with minimal restrictions—suitable for most projects.

Quickstart:

pip install pystac-ext-storage

from pystac_ext_storage import Storage
from pystac import Item

item = Item(...)
storage_ext = Storage.from_item(item)
storage_ext.platform = 's3'
storage_ext.region = 'us-west-2'

Requires Python 3.10 or later.

Verify before relying:

- Whether the package provides helper methods beyond field assignment or primarily wraps the pystac-core extension mechanism.
- Compatibility guarantees between this package version and specific pystac-core versions.

## Package facts

- License: Apache-2.0 (permissive)
- Python support: supports_current
- Install friction: low
- Maintenance: active
- Downloads: 4.0M/month (top 5,000 on PyPI)
- Known vulnerabilities: none known

## Tags

pystac storage extension, stac cloud storage metadata, pystac asset storage attributes, stac storage extension python, cloud storage catalog metadata, pystac storage tier region, stac requester pays configuration, stac-extension, geospatial-metadata, cloud-storage

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