---
id: stac-fastapi-extensions
version: "6.5.0"
license: MIT
license_treatment: permissive
maintenance: active
---

# stac-fastapi-extensions — Extensions for stac-fastapi apis.

License: permissive · Maintenance: active · Downloads: 94.3K/mo

## What it is and what it does

stac-fastapi-extensions is a FastAPI-based implementation of the STAC API specification. It provides extension modules that build on top of stac-fastapi-api and stac-fastapi-types to enable developers to construct APIs for cataloging and serving geospatial data with temporal dimensions.

The package targets developers, researchers, and IT professionals working with geospatial data. It requires Python 3.11 or later and has low installation friction, depending only on two core runtime dependencies. The project is actively maintained with recent updates and is part of the stac-utils ecosystem.

Use it for:

- Build a geospatial data catalog API that exposes satellite imagery or spatiotemporal assets with STAC compliance
- Extend a FastAPI application to serve STAC-compliant search and discovery endpoints for scientific data
- Implement custom STAC API extensions for domain-specific metadata or query requirements

## Worth the install?

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

Provides FastAPI extensions for the STAC API specification, enabling you to build spatiotemporal asset catalog APIs.

Yes, if you are building a STAC API with FastAPI. The package has low install friction, active maintenance, no known vulnerabilities, and permissive MIT licensing. Install only if you need STAC API extensions; if you need only the base STAC API, stac-fastapi-api may suffice.

## Install

pip install stac-fastapi-extensions
uv add stac-fastapi-extensions
poetry add stac-fastapi-extensions

## Installing stac-fastapi-extensions

Before you install: Low install friction with only two runtime dependencies. Active maintenance with a release 11 days ago and recent commits; supports Python 3.11, 3.12, 3.13, and 3.14.

License in practice: MIT license permits commercial and private use with minimal restrictions, suitable for most projects.

Quickstart:

pip install stac-fastapi-extensions

from stac_fastapi_extensions import ...
# See documentation at https://stac-utils.github.io/stac-fastapi/

Requires Python 3.11 or later

Verify before relying:

- What specific STAC API extensions are included in this package versus the base stac-fastapi-api
- Whether this package is meant to be used directly or primarily as a dependency for other packages
- Concrete usage examples beyond the summary 'Extensions for stac-fastapi apis'

## Package facts

- License: MIT (permissive)
- Python support: supports_current
- Install friction: low
- Maintenance: active
- Downloads: 94.3K/month (top 15,000 on PyPI)
- Known vulnerabilities: none known

## Tags

stac api fastapi, spatiotemporal asset catalog, stac extensions, geospatial catalog api, stac-fastapi, geospatial, stac-catalog

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