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# OpenSearch |
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This page covers how to use the OpenSearch ecosystem within LangChain. |
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It is broken into two parts: installation and setup, and then references to specific OpenSearch wrappers. |
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## Installation and Setup |
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- Install the Python package with `pip install opensearch-py` |
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## Wrappers |
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### VectorStore |
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There exists a wrapper around OpenSearch vector databases, allowing you to use it as a vectorstore |
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for semantic search using approximate vector search powered by lucene, nmslib and faiss engines |
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or using painless scripting and script scoring functions for bruteforce vector search. |
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To import this vectorstore: |
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```python |
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from langchain.vectorstores import OpenSearchVectorSearch |
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``` |
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For a more detailed walkthrough of the OpenSearch wrapper, see [this notebook](../modules/indexes/vectorstore_examples/opensearch.ipynb) |
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