# How Amazon Kendra works

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This page was generated from content adapted from the [AWS Developer Guide](https://github.com/awsdocs/amazon-kendra-developer-guide.git)
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## Data sources

* **Note**\
  To create an index, you don't need a data source. You can add documents directly to an index. For more information, see [Adding documents directly to an index](https://github.com/kevinslin/aws-reference-notes/blob/main/services/amazon_kendra/in-adding-documents.md).