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

# InMemoryVectorStore integration

> Integrate with the InMemoryVectorStore vector store using LangChain Python.

`InMemoryVectorStore` is the ephemeral, in-process vector store in `langchain-core`.

For API details, see the [`InMemoryVectorStore` reference](https://reference.langchain.com/python/langchain-core/vectorstores/in_memory/InMemoryVectorStore).

***

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