# Knowledge Catalog documentation

[Read product documentation](https://docs.cloud.google.com/knowledge-catalog/docs/introduction)
Knowledge Catalog (formerly Dataplex Universal Catalog) is an AI-powered data catalog that provides business context and
governance for your entire data estate. By automatically extracting semantics from structured and
unstructured data, it builds a dynamic context graph that grounds AI agents in enterprise truth
and reduces hallucinations. Data teams and AI developers use
Knowledge Catalog to discover data, enforce policies, and retrieve rich
context for both traditional data analytics and autonomous agentic applications.
[Learn more](https://docs.cloud.google.com/knowledge-catalog/docs/introduction).

[Go to the Knowledge Catalog product page for more.](https://cloud.google.com/products/knowledge-catalog)

## Documentation resources

Discover guides and best practices for aggregating and enriching metadata, governing data quality and lineage, and retrieving context for AI agents.

### Aggregate and enrich context

-

  [Import metadata from relational databases](https://docs.cloud.google.com/knowledge-catalog/docs/connectors)

-

  [Ingest metadata from custom data sources](https://docs.cloud.google.com/knowledge-catalog/docs/ingest-custom-sources)

-

  [Manage aspects and enrich entry metadata](https://docs.cloud.google.com/knowledge-catalog/docs/enrich-entries-metadata)

-

  [Create and manage business glossaries](https://docs.cloud.google.com/knowledge-catalog/docs/manage-glossaries)

### Govern and trust

-

  [Track end-to-end data lineage across systems](https://docs.cloud.google.com/knowledge-catalog/docs/use-lineage)

-

  [Automate data quality scans and validation](https://docs.cloud.google.com/knowledge-catalog/docs/use-auto-data-quality)

-

  [Generate statistical data profiles for tables](https://docs.cloud.google.com/knowledge-catalog/docs/use-data-profiling)

-

  [Manage access requests with governance workflows](https://docs.cloud.google.com/knowledge-catalog/docs/about-governance-workflows)

### Search and retrieval

-

  [Search catalog resources across your data estate](https://docs.cloud.google.com/knowledge-catalog/docs/search-assets)

-

  [Ground AI agents by using Model Context Protocol](https://docs.cloud.google.com/knowledge-catalog/docs/mcp-overview)

-

  [Retrieve LLM-ready context by using the Context API](https://docs.cloud.google.com/knowledge-catalog/docs/retrieve-data-context)

-

  [View relationships between data assets](https://docs.cloud.google.com/knowledge-catalog/docs/data-relationships)