pystac-ext-sar
SAR extension for PySTAC
Decision gist · record as of 2026-08-14
Yes. The package is production-stable, actively maintained (release 4 days old), has no known vulnerabilities, low install friction, and permissive licensing. Install it if you are working with SAR data in a PySTAC-based system and need standardized metadata fields for radar imagery. Skip it if you don't use SAR data or don't work with STAC catalogs.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.10 or later; pystac-core must be installed as a runtime dependency.
- Low friction: pure Python wheel, single runtime dependency (pystac-core), and actively maintained with a release just 4 days old.
- Repository shows recent activity and is not archived.
License · maintenance · safety
Apache-2.0 (permissive) — Apache-2.0 permissive license allows commercial and private use with minimal restrictions; suitable for most projects that can comply with attribution and derivative work disclosure requirements.
last release 2026-08-10 (4 days) · last repo commit 2026-08-10 · 454 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 3,981,755 downloads/mo, #2,420 on PyPI
Alternatives
Verify before relying
pip install pystac-ext-sar
import pystac
from pystac.extensions.sar import SarExtension
# Access SAR extension on an item
item = pystac.Item.from_dict({...})
sar = SarExtension.ext(item, add_if_missing=True)- Whether the extension fully implements v1.0.0 schema or if there are known gaps in field coverage.
- Performance characteristics when working with large STAC catalogs containing many SAR items.
- Integration patterns with common SAR data sources or processing workflows.
What it is and what it does
pystac-ext-sar is a PySTAC extension package that adds SAR-specific metadata fields to STAC items and collections. It implements the SAR Extension v1.0.0 specification, allowing you to describe Synthetic-Aperture Radar imagery with structured fields for instrument mode, frequency band, polarizations, product type, and observation direction. The package builds on pystac-core and provides validation and helper methods to work with SAR data in STAC catalogs.
This is a specialized extension for projects that catalog or process radar imagery. It's most useful when you're building STAC-based systems that need to organize, search, or analyze SAR data alongside other geospatial information. The package is production-stable, actively maintained, and supports modern Python versions.
Use it for
- Catalog SAR satellite imagery in a STAC collection with standardized radar-specific metadata fields.
- Validate SAR item metadata against the v1.0.0 extension schema before ingesting into a STAC repository.
- Query and filter SAR data by polarization, frequency band, or instrument mode in a STAC API.
- Build a geospatial data pipeline that processes radar imagery and needs to attach SAR-specific provenance.
- Integrate SAR data with other imagery types in a multi-sensor STAC catalog.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes.
The package is production-stable, actively maintained (release 4 days old), has no known vulnerabilities, low install friction, and permissive licensing. Install it if you are working with SAR data in a PySTAC-based system and need standardized metadata fields for radar imagery. Skip it if you don't use SAR data or don't work with STAC catalogs.
Install
pystac-ext-sar on PyPI
Before you install
Low friction: pure Python wheel, single runtime dependency (pystac-core), and actively maintained with a release just 4 days old. Repository shows recent activity and is not archived.
Requires Python 3.10 or later; pystac-core must be installed as a runtime dependency.
License in practice
Apache-2.0 permissive license allows commercial and private use with minimal restrictions; suitable for most projects that can comply with attribution and derivative work disclosure requirements.
Quickstart
pip install pystac-ext-sar
import pystac
from pystac.extensions.sar import SarExtension
# Access SAR extension on an item
item = pystac.Item.from_dict({...})
sar = SarExtension.ext(item, add_if_missing=True)Verify before relying
- Whether the extension fully implements v1.0.0 schema or if there are known gaps in field coverage.
- Performance characteristics when working with large STAC catalogs containing many SAR items.
- Integration patterns with common SAR data sources or processing workflows.
Package facts
| License | Apache-2.0 permissive |
| Python support | Supports the current Python release >=3.10 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 1 packagepystac-core |
| Maintenance | Actively maintained 4 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 3,981,755 / month, #2,420 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 5 - Production/StableIntended Audience :: DevelopersLicense :: OSI Approved :: Apache Software LicenseNatural Language :: EnglishProgramming Language :: Python :: 3Programming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13 |
Evidence: pystac_ext_sar-1.0.1-py3-none-any.whl
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See also pystac-ext-eo · pystac-ext-raster · pystac-ext-view · pystac-ext-mgrs · pystac-ext-pointcloud · pystac-ext-xarray-assets · pystac-ext-sat · pystac-ext-scientific · pystac-ext-classification · open-radar-data