# Vespa >[Vespa](https://vespa.ai/) is a fully featured search engine and vector database. > It supports vector search (ANN), lexical search, and search in structured data, all in the same query. ## Installation and Setup ```bash pip install pyvespa ``` ## Retriever See a [usage example](/docs/modules/data_connection/retrievers/integrations/vespa.html). ```python from langchain.retrievers import VespaRetriever ```