Aquileo | Retriever integrations

A retriever is an interface that returns documents given an unstructured query. It is more general than a vector store. A retriever does not need to be able to store documents, only to return (or retrieve) them. Retrievers accept a string query as input and return a list of Document objects. For specifics on how to use retrievers, see the relevant how-to guides here. Note that all vector stores can be cast to retrievers. Refer to the vector store integration docs for available vector store retrievers.

All retrievers

Retriever	Package	Downloads
`AWSKendraRetriever`	`@langchain/aws`
`Knowledge bases for Amazon Bedrock`	`@langchain/aws`
`ExaRetriever`	`@langchain/exa`
`PerplexitySearchRetriever`	`@langchain/perplexity`
`Alchemyst AI`	`@alchemystai/langchain-js`
`SourceyRetriever`	`langchain-sourcey`
`Hyde`		N/A
`Self Querying with SAP HANA Cloud Vector Engine`		N/A
`Time-weighted`		N/A