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[Stable] The Unit Service provides dimension/measurement and unit definitions. Given two unit definitions, the service also offers conversion parameters in two different parameterizations.

[Stable] The Search Service supports full-text search on string fields, range queries on date, numeric or string fields, along with geo-spatial search.

[Stable] The CRS Catalog Service enables end-users to make CRS selections, search for CRSs given a number of constraints, download of the entire catalog for local caching, and access to various sub-sets of the catalog.

[Stable] The CRS Conversion Service provides spatial reference conversions for coordinates. Coordinates are represented by an array of 3D points.

[Stable] The Indexer Service indexes the metadata store to support the Search Service.

[Stable] The Schema Service enables schema management in the OSDU and offers an implementation of the schema standard.

[Stable] The Storage Service handles metadata ingestion in OSDU.

[Stable] The Indexer Queue Service provides a set of APIs that help in forwarding the messages to and from the Storage Service and Indexer Service.

Legal service is to help ensure data compliance with legal data governance when dealing with data in the Data Ecosystem by managing legal tags

[Stable] The File Service provides internal and external APIs to request for file location data, such as a signed URL per file upload. Using the signed URL, OSDU users will be able to upload their files for ingestion into the system.

Wellbore Domain Data Management Services including type-safe entity access and optimized accessors for bulk data such as logs, trajectories, checkshots.

[Stable] The Dataset Service provides internal and external APIs to allow fetching storage/retrieval instructions for various types of datasets.

[Stable] The Notification service allows interested consumers to subscribe to data and metadata changes using a publish/subscriber pattern.

[Stable] The Workflow service provides a wrapper functionality around the Apache Airflow functions and is designed to carry out preliminary work with files before running the Airflow Directed Acyclic Graphs (DAGs) that will perform actual ingestion of OSDU data.

[Stable] SDK encapsulates calls to the Core Storage and Search services. In future releases, the SDK might provide additional interfaces.

[Stable] The Register Service manages subscriptions, action and DDMS registrations in the OSDU.

[Sandbox] Legacy contribution from Energistics - only supports WITSML v2.0

[Stable] The Partition Service dynamically pulls the correct connection information at runtime to connect to the correct partition.