🦜️🔗 LangChain MongoDB

This is a Monorepo containing partner packages of MongoDB and LangChainAI. It includes integrations between MongoDB, Atlas, LangChain, and LangGraph.

It contains the following packages.

• langchain-mongodb (PyPI)
• langgraph-checkpoint-mongodb (PyPI)

Note: This repository replaces all MongoDB integrations currently present in the langchain-community package. Users are encouraged to migrate to this repository as soon as possible.

Features

LangChain

• Vector store -MongoDBAtlasVectorSearch
• Message histories
  • MongoDBChatMessageHistory
• Model caches
  • MongoDBCache
  • MongoDBAtlasSemanticCache
• Retrievers
  • MongoDBAtlasHybridSearchRetriever
  • MongoDBAtlasFullTextSearchRetriever
  • MongoDBAtlasParentDocumentRetriever - new feature, docs coming soon!
• Indexing
  • MongoDBRecordManager - new feature, docs coming soon!

LangGraph

• Checkpointing
  • MongoDBSaver - new feature, docs coming soon!

Installation

You can install the langchain-mongodb package from PyPI.

pip install langchain-mongodb

You can install the langgraph-checkpoint-mongodb package from PyPI as well:

pip install langgraph-checkpoint-mongodb

Usage

See langchain-mongodb usage and langgraph-checkpoint-mongodb usage.

For more detailed usage examples and documentation, please refer to the LangChain documentation.

Contributing

See the Contributing Guide.

License

This project is licensed under the MIT License.