langchain-ai/langchain
The agent engineering platform
This is an agent engineering platform that helps developers build powerful applications powered by large language models (LLMs). It provides tools to connect LLMs to various data sources, external systems, and other models, allowing for complex AI workflows. Developers use it to quickly prototype, integrate, and deploy sophisticated AI agents and LLM-driven applications.
129,354 stars. Used by 290 other packages. Actively maintained with 208 commits in the last 30 days. Available on PyPI.
Use this if you are a software developer creating applications that need to understand natural language, perform complex tasks with AI, or integrate large language models with real-time data and external tools.
Not ideal if you are looking for a ready-to-use application and do not have programming experience, as this is a developer framework.
Stars
129,354
Forks
21,296
Language
Python
License
MIT
Category
Last pushed
Mar 13, 2026
Commits (30d)
208
Dependencies
3
Reverse dependents
290
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