langchain-classic has 21M monthly downloads and 141K GitHub stars. Version 1.0.8 supports Python <4.0.0,>=3.10.0, first published in 2025.
It is actively maintained under a permissive license, last released in Jun 2026.
It is built on top of async-timeout, langchain-core and langchain-text-splitters. It is used by 76 tracked packages, including langchain-community, open-webui and langchain-mongodb.
GitHub topics include ai, anthropic and gemini.
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Dependencies
- async-timeout <5.0.0,>=4.0.0
- langchain-core <2.0.0,>=1.4.4
- langchain-text-splitters <2.0.0,>=1.1.2
- langsmith <1.0.0,>=0.1.17
- pydantic <3.0.0,>=2.7.4
- pyyaml <7.0.0,>=5.3.0
- requests <3.0.0,>=2.0.0
- sqlalchemy <3.0.0,>=1.4.0
17 optional dependencies
- langchain-anthropic[anthropic]
- langchain-aws[aws]
- langchain-azure-ai[azure-ai]
- langchain-cohere[cohere]
- langchain-community[community]
- langchain-deepseek[deepseek]
- langchain-fireworks[fireworks]
- langchain-google-genai[google-genai]
- langchain-google-vertexai[google-vertexai]
- langchain-groq[groq]
- langchain-huggingface[huggingface]
- langchain-mistralai[mistralai]
- langchain-ollama[ollama]
- langchain-openai[openai]
- langchain-perplexity[perplexity]
- langchain-together[together]
- langchain-xai[xai]
Used By
- langchain-community
- open-webui
- langchain-mongodb
- sap-ai-sdk-gen
- langchain-neo4j
- nvidia-nat-langchain
- gpt-researcher
- neuro-san
- lfx
- scrapegraphai
- langchain-memgraph
- langchain-hana
- aurapro-ui
- rasa-pro
- aidev-agent
- lfx-nightly
- sfn-blueprint
- akasha-terminal
- ws-bom-robot-app
- guard-rag
- wdoc
- kobai-sdk
- nebula-ai
- wizit-open-rag
- langchain-arangodb
- agent-search-core
- pinrag
- ai-hello
- langchain-couchbase
- dev-tools-eagle
- skfeaturellm
- mongodb-ai-widget-challenge
- docseer
- fabriq
- gpt-researcher-tomorrow
- mocksql
- oj-problem-import
- ai-companion-langchain-integrator
- telegram-rag-bot
- hspylib-askai
- gnais
- dj-rag
- agentiva
- keovil
- netweb-sdk
- nishant-ragkit
- langchain-cratedb
- jf-lfx
- schema-miner
- ring-fenced-rag