> For the complete documentation index, see [llms.txt](https://docs.trycortex.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.trycortex.ai/callable/use-cases/retrievals-from-knowledge-search-blocks.md).

# Retrievals from Knowledge Search Blocks

## Knowledge Search Block

Search blocks allow Callables to make queries to uploaded Knowledges.

<figure><img src="https://3035252822-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FeiBCAl6qTuG0sZpeXLxC%2Fuploads%2Fa0j6GXxmiPTranibQ9el%2FScreenshot%202023-07-19%20at%2012.51.46%20PM.png?alt=media&amp;token=c90a8881-5e4f-477b-bc43-af2f919c423b" alt=""><figcaption></figcaption></figure>

Search Blocks consist of the following fields:

* **Query:** Provide the desired prompt to look for inside your knowledges
* **Knowledge:** Add and select as many knowledges that you have created. Allows for specific include or exclude tags to better refine your retrieval.

<figure><img src="https://3035252822-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FeiBCAl6qTuG0sZpeXLxC%2Fuploads%2FvEAa6lTqBdua10VDNOKO%2FScreenshot%202023-07-18%20at%205.30.43%20PM.png?alt=media&amp;token=48cac3c3-840b-401f-980b-c7250aa084a6" alt=""><figcaption></figcaption></figure>