langchain has 328.7M monthly downloads and 141K GitHub stars. Version 1.3.11 supports Python <4.0.0,>=3.10.0, first published in 2022.
It is actively maintained under a permissive license, last released in Jun 2026.
It is built on top of langchain-core, langgraph and pydantic. It is used by 3,441 tracked packages, including langchain-google-community, deepagents and databricks-langchain.
GitHub topics include ai, anthropic and gemini.
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Dependencies
- langchain-core <2.0.0,>=1.4.7
- langgraph <1.3.0,>=1.2.5
- pydantic <3.0.0,>=2.7.4
17 optional dependencies
- langchain-anthropic[anthropic]
- langchain-aws[aws]
- langchain-azure-ai[azure-ai]
- langchain-baseten[baseten]
- 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-google-community
- deepagents
- databricks-langchain
- braintrust-langchain
- langchain-azure-ai
- unitycatalog-langchain
- open-webui
- ragas
- langchain-mongodb
- openevals
- uipath-langchain
- langchain-tavily
- langmem
- embedchain
- ag-ui-langgraph
- copilotkit
- sap-ai-sdk-gen
- composio-langchain
- uipath-langchain-client
- mcp-use
- nvidia-nat-langchain
- cuga
- langchain-google-calendar-tools
- jupyter-ai-magics
- gllm-inference-binary
- llama-index-llms-langchain
- langgraph-swarm
- opendsstar
- gpt-researcher
- langchain-oci
- langflow-base
- neuro-san
- lfx
- scrapegraphai
- langchain-quickjs
- agentdojo
- garak
- deepagents-cli
- langchain-qwq
- pdd-cli
- karaoke-gen
- zenpyre
- ragatouille
- iatoolkit
- langchain-memgraph
- grading-notes
- python-a2a
- langchain-hana
- langchain-mcp-tools
- deepagents-code