# Connect External Catalogs Connect an external catalog to use tagging capabilities outside of Immuta and pull tags from external table schemas. Once the catalog has been connected, Immuta ingests a data dictionary from the catalog and applies data source and column tags directly to the data source. These tags can then be used to create policies. ## How-to guide [Configure an external catalog](https://documentation.immuta.com/saas/configuration/tags/catalogs/configure): Configure an external catalog to ingest tags into Immuta. ## Reference guides * [External catalog integrations](https://documentation.immuta.com/saas/configuration/tags/catalogs/reference-guides/pre-configuration): This reference guide describes the requirements of the external catalogs Immuta supports. * [Custom REST catalog interface endpoints](https://documentation.immuta.com/saas/configuration/tags/catalogs/reference-guides/interface): This reference guide describes the endpoints for configuring a custom REST catalog. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://documentation.immuta.com/saas/configuration/tags/catalogs.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.