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Unlock the Power of LLM-Oriented Development with LangChain

Develop context-aware AI agents using our powerful open-source toolkit.

shipped Nov 20, 2025pricing & licensingpaid
Pricing & LicensingPricing ModelsOpen-source
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Why it matters

1Leverage a thriving community with over 113,000 stars on GitHub.
2Build production-ready agents with support for advanced workflows and integrations.
3Rapidly prototype and deploy scalable solutions with minimal coding effort.

Specs

API Docs

View Documentation →

GitHub

View Repository →

API Available

Yes, public API

overview

What is LangChain?

LangChain is an Apache 2.0 toolkit designed for orchestrating large language models (LLMs) with community-driven plugins. It empowers developers to craft intelligent applications that incorporate human-like context awareness seamlessly.

  • Open-source framework for flexibility and community contributions.
  • Designed for both beginners and experienced developers.
  • Robust support for various applications across industries.

features

Key Features of LangChain

LangChain enables advanced agent capabilities that enhance AI application development. Our toolkit offers persistent workflows, checkpointing, and more, ensuring reliability and efficiency.

  • Modular architecture for tailored solutions.
  • DeepAgents for subagent orchestration and file system integration.
  • Human-in-the-loop oversight with LangGraph's durable runtime.

use cases

Transformative Use Cases

LangChain is perfect for engineering teams aiming to streamline their AI projects. From autonomous software development to research automation, the toolkit provides the versatility needed to innovate.

  • Accelerate software engineering processes.
  • Facilitate research automation with integrated tools.
  • Power diverse applications across multiple domains.

Policies

Pricing Page

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