# Manage knowledge bases

List, inspect, create, update, and delete knowledge bases, including empty knowledge bases and knowledge bases created with data sources. Use the knowledge-base identifier returned by the relevant action for later operations.

## Choose a task

| Task | Description |
| --- | --- |
| [Find readable knowledge bases](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/knowledge-bases/list-knowledge-bases.html.md) | Paginated list of knowledge bases (semantic models) that can be read by the current workspace. |
| [Inspect knowledge-base tag counts](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/knowledge-bases/list-knowledge-base-tags.html.md) | Reading the current workspace can read the tag statistics of the knowledge base. |
| [Inspect a knowledge-base definition](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/knowledge-bases/get-knowledge-base.html.md) | Query model definitions and source quantities by knowledge base ID. |
| [Start with an empty knowledge base](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/knowledge-bases/create-knowledge-base.html.md) | Create an empty knowledge base. |
| [Create a knowledge base without sources](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/knowledge-bases/create-empty-knowledge-base.html.md) | Create a knowledge base without data sources. |
| [Create with initial sources](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/knowledge-bases/create-knowledge-base-with-sources.html.md) | Create a knowledge base with initial sources; success does not mean the content is retrievable. |
| [Change a knowledge-base description](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/knowledge-bases/update-knowledge-base.html.md) | Change the description or compatible legacy source fields; the name cannot be changed. |
| [Remove a knowledge base](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/knowledge-bases/delete-knowledge-base.html.md) | Delete the knowledge-base definition while preserving source Catalog tables and files; handle references first. |