> ## Documentation Index
> Fetch the complete documentation index at: https://docs.cognigy.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Knowledge Connector API

The *Knowledge Connector API* is a toolset for developers to create custom [Knowledge Connectors](/ai/agents/develop/knowledge-ai/knowledge-connectors) and integrate external knowledge databases into Cognigy.AI. The toolset is intended be used within the [Knowledge Connector implementation](https://www.npmjs.com/package/@cognigy/extension-tools#user-content-knowledge-connector). This API provides functions to create and delete [Knowledge Sources](/ai/agents/develop/knowledge-ai/knowledge-source/overview) and the relative [Knowledge Chunks](/ai/agents/develop/knowledge-ai/knowledge-chunk/knowledge-chunk).

## Use Cases

* **Create and Update Knowledge Sources** — detect documents that have been created or changed and import them from cloud-based document repositories, for example, SharePoint, Confluence.
* **API Integration** — automate knowledge imports from REST APIs.

## Knowledge Connector API Functions

### [`upsertKnowledgeSource`](/ai/for-developers/knowledge-connector/upsertKnowledgeSource)

**Syntax:** `api.upsertKnowledgeSource(params)`

Creates or updates a Knowledge Source with the specified name, description, Source Tags, and number of Knowledge Chunks. Supports knowledge synchronization.

### [`createKnowledgeSource`](/ai/for-developers/knowledge-connector/createKnowledgeSource) (deprecated)

**Syntax:** `api.createKnowledgeSource(params)`

Creates a new Knowledge Source with the specified name, description, Source Tags, and number of Knowledge Chunks.

### [`deleteKnowledgeSource`](/ai/for-developers/knowledge-connector/deleteKnowledgeSource)

**Syntax:** `api.deleteKnowledgeSource(params)`

Deletes a Knowledge Source.

### [`createKnowledgeChunk`](/ai/for-developers/knowledge-connector/createKnowledgeChunk)

**Syntax:** `api.createKnowledgeChunk(params)`

Creates a Knowledge Chunk in a Knowledge Source, containing text content and optional Chunk metadata.