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langchain-ai /

langchain

The agent engineering platform.

stars★ 141.3k
forks⑂ 23.5k
Open issues407
Primary languagePython
LicenseMIT
Last updatedtoday

Overview

langchain is a AI & Machine Learning project, described by its maintainers as: "The agent engineering platform.." Written primarily in Python, it ranks among the most-starred projects on GitHub, with roughly 141.3k stars and 23.5k forks as of the latest data. Topics tagged by the maintainers include agents, ai, ai-agents, anthropic — see the "Key topics" section below for a quick explanation of each.

Key topics

Getting started

Installation steps vary depending on how a project is packaged, so the most reliable source is always the official README. As a starting point:

Open the official repository ↗

How it compares

Here is how this project sits alongside a few other tools in the same category:

Questions about this project

What is langchain?
langchain is a AI & Machine Learning project, described by its maintainers as: "The agent engineering platform.." Written primarily in Python, it ranks among the most-starred projects on GitHub, with roughly 141.3k stars and 23.5k forks as of the latest data. Topics tagged by the maintainers include agents, ai, ai-agents, anthropic — see the "Key topics" section below for a quick explanation of each.
What license does langchain use?
MIT
How popular is langchain on GitHub?
langchain has roughly 141.3k stars and 23.5k forks on GitHub as of the latest data.
Is langchain actively maintained?
Based on its GitHub activity, this repository has been updated recently, which is generally a good sign of active maintenance.
What language is langchain written in?
langchain is written primarily in Python.

Repository info

Ownerlangchain-ai
Primary languagePython
LicenseMIT
CreatedOctober 17, 2022
Last updatedJuly 9, 2026
Open issues407
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