unitycatalog-client
Official Python SDK for Unity Catalog
Decision gist · record as of 2026-08-14
Yes, if you are building against a Unity Catalog server. The package is actively maintained, has no known vulnerabilities, low install friction, and provides the official async Python interface to the catalog API. It is suitable for production use in data governance, pipeline automation, and metadata management workflows. Not applicable if you do not have a Unity Catalog deployment to connect to.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires a running Unity Catalog server to connect to; all API calls are async and must be awaited within an async context.
- Low friction install with a pure-Python wheel.
- Actively maintained with a recent release (27 days old) and 3487 repository stars.
License · maintenance · safety
Apache-2.0 (permissive) — Apache 2.0 permissive license allows commercial use, modification, and distribution with minimal restrictions—suitable for most commercial and open-source projects.
last release 2026-07-18 (27 days) · last repo commit 2026-08-14 · 3,487 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 1,743,634 downloads/mo, #3,598 on PyPI
Alternatives
Verify before relying
pip install unitycatalog-client
from unitycatalog.client import Configuration, ApiClient, CatalogsApi
config = Configuration()
config.host = "http://localhost:8080/api/2.1/unity-catalog"
client = ApiClient(configuration=config)
catalogs_api = CatalogsApi(api_client=client)
my_catalogs = await catalogs_api.list_catalogs()- Whether the generated OpenAPI client covers all Unity Catalog REST endpoints or if some are missing.
- Performance characteristics and rate-limiting behavior when handling large paginated responses.
- Compatibility with different Unity Catalog server versions and whether breaking changes are tracked.
What it is and what it does
The unitycatalog-client is an auto-generated async Python SDK that wraps the Unity Catalog REST API. Unity Catalog is an open-source, vendor-neutral metadata catalog designed to govern data and AI assets across multiple storage formats (Delta Lake, Apache Iceberg, Hudi, Parquet, JSON, CSV) and compute engines. The SDK lets you programmatically create and manage catalogs, schemas, tables, and other assets through a Python-native async interface.
The library is built on aiohttp for non-blocking HTTP requests and pydantic for data validation. It supports Python 3.9 and later. The SDK is generated from an OpenAPI specification, which means its API surface mirrors the REST endpoints directly. You configure a client with a server URL, then instantiate API classes (CatalogsApi, SchemasApi, etc.) to make requests. Pagination is supported through continuation tokens for list operations.
Use it for
- Automate catalog and schema creation and management in a data platform or data lake infrastructure.
- Build governance workflows that query and update asset metadata, permissions, and ownership across multiple catalogs.
- Integrate Unity Catalog metadata into data pipeline orchestration tools or custom data discovery applications.
- Programmatically register and manage AI models, functions, and other assets alongside tabular data in a unified catalog.
- Sync metadata between external systems and Unity Catalog via async batch operations.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you are building against a Unity Catalog server.
The package is actively maintained, has no known vulnerabilities, low install friction, and provides the official async Python interface to the catalog API. It is suitable for production use in data governance, pipeline automation, and metadata management workflows. Not applicable if you do not have a Unity Catalog deployment to connect to.
Install
unitycatalog-client on PyPI
Before you install
Low friction install with a pure-Python wheel. Actively maintained with a recent release (27 days old) and 3487 repository stars. Depends on standard async HTTP libraries (aiohttp, aiohttp-retry) and common utilities (pydantic, python-dateutil, urllib3, typing-extensions).
Requires a running Unity Catalog server to connect to; all API calls are async and must be awaited within an async context.
License in practice
Apache 2.0 permissive license allows commercial use, modification, and distribution with minimal restrictions—suitable for most commercial and open-source projects.
Quickstart
pip install unitycatalog-client
from unitycatalog.client import Configuration, ApiClient, CatalogsApi
config = Configuration()
config.host = "http://localhost:8080/api/2.1/unity-catalog"
client = ApiClient(configuration=config)
catalogs_api = CatalogsApi(api_client=client)
my_catalogs = await catalogs_api.list_catalogs()Verify before relying
- Whether the generated OpenAPI client covers all Unity Catalog REST endpoints or if some are missing.
- Performance characteristics and rate-limiting behavior when handling large paginated responses.
- Compatibility with different Unity Catalog server versions and whether breaking changes are tracked.
Package facts
| License | Apache-2.0 permissive |
| Python support | Supports the current Python release >=3.9 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 6 packagesaiohttp-retryaiohttppydanticpython-dateutiltyping-extensionsurllib3 |
| Maintenance | Actively maintained 27 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 1,743,634 / month, #3,598 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 4 - BetaIntended Audience :: DevelopersIntended Audience :: EducationIntended Audience :: End Users/DesktopIntended Audience :: Information TechnologyIntended Audience :: Other AudienceIntended Audience :: Science/ResearchLicense :: OSI Approved :: Apache Software LicenseOperating System :: OS IndependentProgramming Language :: Python :: 3Programming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.9Topic :: Scientific/EngineeringTopic :: Software DevelopmentTopic :: Software Development :: LibrariesTopic :: Software Development :: Libraries :: Python ModulesTopic :: Software Development :: User Interfaces |
Evidence: unitycatalog_client-0.5.1-py3-none-any.whl
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See also unitycatalog-ai · unitycatalog-openai · pyatlan · unitycatalog-langchain · UnityPy · pyiceberg · google-cloud-datacatalog · databricks-feature-engineering · azure-mgmt-datalake-analytics · intake