Retriever | Self-host | Cloud offering | Package |
---|---|---|---|
AmazonKnowledgeBasesRetriever | ❌ | ✅ | langchain-aws |
AzureAISearchRetriever | ❌ | ✅ | langchain-community |
ElasticsearchRetriever | ✅ | ✅ | langchain-elasticsearch |
VertexAISearchRetriever | ❌ | ✅ | langchain-google-community |
Retriever | Source | Package |
---|---|---|
ArxivRetriever | Scholarly articles on arxiv.org | langchain-community |
TavilySearchAPIRetriever | Internet search | langchain-community |
WikipediaRetriever | Wikipedia articles | langchain-community |
Note: The descriptions in the table below are truncated for readability.