> ## 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

> Attach a Knowledge Store to a Flow-based agent so it can answer from your documents.

A Flow-based agent uses a **Knowledge Store** to answer from your documents instead of from the model's general training. You attach it in the **Knowledge Store** step when you [create the agent](https://docs.cognigy.com/ai/agents/develop/flow-agents/overview#create-from-scratch), by choosing one of four options: **None**, **Choose existing Knowledge Store**, **Upload Knowledge Source**, or **Upload URL Knowledge Source**.

An embedding model is required either way. See [Knowledge AI](https://docs.cognigy.com/ai/agents/develop/knowledge-ai/overview).

## More information

* [Flow agents: Knowledge Store step](https://docs.cognigy.com/ai/agents/develop/flow-agents/overview#create-from-scratch)
* [Knowledge Store](https://docs.cognigy.com/ai/agents/develop/knowledge-ai/knowledge-store.md)