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    • Overview of STAC API Extensions, with advice on creating new extensions
      Python
      Apache License 2.0
      3420Updated May 1, 2026May 1, 2026
    • language

      Public
      Definitions and recommendations around making multi-lingual STAC APIs available
      Apache License 2.0
      1100Updated Feb 12, 2026Feb 12, 2026
    • children

      Public
      The purpose of this extension is to add an endpoint that presents a single resource from which clients can retrieve the immediate children of a Catalog.
      Apache License 2.0
      0210Updated Dec 11, 2025Dec 11, 2025
    • Collection Search for STAC APIs
      Apache License 2.0
      21330Updated Dec 8, 2025Dec 8, 2025
    • Browseable advertises all Items in a STAC API Catalog can be reached by traversing child and item links.
      Apache License 2.0
      0210Updated Dec 7, 2025Dec 7, 2025
    • sort

      Public
      The Sort Extension that allows the user to define the fields by which to sort results.
      Apache License 2.0
      0210Updated Nov 12, 2025Nov 12, 2025
    • filter

      Public
      The Filter extension provides an expressive mechanism for searching based on Item attributes.
      Apache License 2.0
      61273Updated Nov 12, 2025Nov 12, 2025
    • fields

      Public
      The Fields Extensions describes a mechanism to include or exclude certain fields from a response.
      Apache License 2.0
      1141Updated Nov 4, 2025Nov 4, 2025
    • This defines a new parameter, q that allows the user to perform free-text queries against the item properties.
      3450Updated Oct 22, 2025Oct 22, 2025
    • The Transaction Extension supports the creation, editing, and deleting of items through POST, PUT, PATCH, and DELETE requests.
      Apache License 2.0
      21102Updated Aug 19, 2024Aug 19, 2024
    • The Collection Transaction Extension supports the creation, editing, and deleting of Collections through POST, PUT, PATCH, and DELETE requests.
      Apache License 2.0
      1210Updated Jul 11, 2024Jul 11, 2024
    • STAC API - Distribution Specification
      Apache License 2.0
      0000Updated May 16, 2024May 16, 2024
    • query

      Public
      The Query Extension adds a query parameter that allows additional filtering based on the properties of Item objects.
      Apache License 2.0
      0310Updated Sep 29, 2023Sep 29, 2023
    • Aggregation Extension to provide aggregated data over a search, rather than individual Item results
      Apache License 2.0
      2410Updated Apr 17, 2023Apr 17, 2023
    • incubator

      Public
      Repo for Issues and documentation relating to proposed extensions
      0040Updated Feb 11, 2023Feb 11, 2023
    • A place to hold STAC API Best Practices documenation
      0040Updated Feb 11, 2023Feb 11, 2023
    • version

      Public archive
      Item and Collection Version Extension
      Apache License 2.0
      0010Updated Jan 27, 2023Jan 27, 2023
    • context

      Public archive
      Context Extension
      Apache License 2.0
      0000Updated Jan 27, 2023Jan 27, 2023
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