{"library":"langchain-postgres","type":"library","category":null,"description":"langchain-postgres is an integration package that connects LangChain abstractions with PostgreSQL, leveraging its robust features for vector stores, chat message history, and LangGraph checkpoint saving. It is currently at version 0.0.17 and receives regular updates. The package supports asyncpg and psycopg3 drivers, enabling efficient and scalable interactions with PostgreSQL databases.","language":"python","status":"active","version":"0.0.17","tags":["LangChain","PostgreSQL","Vector Store","Chat History","LangGraph","Database","AI","LLM"],"last_verified":"Fri May 22","install":[{"cmd":"pip install -U langchain-postgres","imports":["from langchain_postgres import PGEngine","from langchain_postgres import PGVectorStore","from langchain_postgres.chat_message_histories import PostgresChatMessageHistory","from langgraph.checkpoint.postgres import PostgresSaver","from langchain_postgres.vectorstores import PGVector"]},{"cmd":"pip install -U 'langchain-postgres[psycopg]' # for psycopg3 driver","imports":[]},{"cmd":"pip install -U 'langchain-postgres[asyncpg]' # for asyncpg driver","imports":[]}],"homepage":null,"github":null,"docs":null,"changelog":null,"pypi":"https://pypi.org/project/langchain-postgres/","npm":null,"openapi_spec":null,"status_page":null,"smithery":null,"compatibility":{"summary":{"python_range":"3.10–3.9","success_rate":100,"avg_install_s":11.3,"avg_import_s":3.03,"wheel_type":"wheel"},"url":"https://checklist.day/v1/registry/langchain-postgres/compatibility"}}