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

# Classify document by type

> Score a document's similarity to each document type you defined in your Sensible account and to each reference document in the highest-scoring type.
To retrieve the scores, poll the `download_link` in this endpoint's response until it returns a non-error response.
This endpoint is asynchronous. For more information about scores, expand the 200 response in the synchronous [classification](ref:classify-document-sync) endpoint.

Use this endpoint:

 - In an extraction workflow. For example, determine which documents to extract prior to calling a Sensible extraction endpoint.
 - Outside an extraction workflow. For example, to determine where to route each document or to label each document in a system of record.

To post the document bytes, specify the non-encoded document bytes as the entire request body,and specify the `Content-Type` header, for example,"application/pdf" or "image/jpeg".

For supported file size and types, see [Supported file types](https://sensible.mintlify.app/.app/senseml-reference/concepts/file-types).