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🦜️🔗 LangChain

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Looking for the JS/TS version? Check out LangChain.js.

To help you ship LangChain apps to production faster, check out LangSmith. LangSmith is a unified developer platform for building, testing, and monitoring LLM applications.

Quick Install

uv add langchain

🤔 What is this?

LangChain is the easiest way to start building agents and applications powered by LLMs. With under 10 lines of code, you can connect to OpenAI, Anthropic, Google, and more. LangChain provides a pre-built agent architecture and model integrations to help you get started quickly and seamlessly incorporate LLMs into your agents and applications.

We recommend you use LangChain if you want to quickly build agents and autonomous applications. Use LangGraph, our low-level agent orchestration framework and runtime, when you have more advanced needs that require a combination of deterministic and agentic workflows, heavy customization, and carefully controlled latency.

LangChain agents are built on top of LangGraph in order to provide durable execution, streaming, human-in-the-loop, persistence, and more. (You do not need to know LangGraph for basic LangChain agent usage.)

📖 Documentation

For full documentation, see the API reference. For conceptual guides, tutorials, and examples on using LangChain, see the LangChain Docs. You can also chat with the docs using Chat LangChain.

📕 Releases & Versioning

See our Releases and Versioning policies.

💁 Contributing

As an open-source project in a rapidly developing field, we are extremely open to contributions, whether it be in the form of a new feature, improved infrastructure, or better documentation.

For detailed information on how to contribute, see the Contributing Guide.

Resources

  • LangChain Academy — comprehensive, free courses on LangChain libraries and products, made by the LangChain team
  • Code of Conduct — community guidelines and standards

Metadata

Release files for langchain 1.4.10

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Source distribution (sdist)

Source distribution for langchain 1.4.10
File Size Uploaded Provenance Actions
langchain-1.4.10.tar.gz 771.8 kB Without provenance Details for langchain-1.4.10.tar.gz

Built distribution (wheel)

Table of built distributions (wheels) for langchain 1.4.10
File Interpreter ABI Platform Actions
langchain-1.4.10-py3-none-any.whl Python 3 none any Details for langchain-1.4.10-py3-none-any.whl

Total release size: 943.2 kB

Release files / langchain-1.4.10.tar.gz

Download URL langchain-1.4.10.tar.gz
Size 771.8 kB
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Release files / langchain-1.4.10-py3-none-any.whl

Download URL langchain-1.4.10-py3-none-any.whl
Size 171.4 kB
Tags Python 3
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Yes
Uploaded via twine/7.0.0 CPython/3.13.16

Security for langchain 1.4.10

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This release

1.4.10 This release

2 release files No provenance

Anthropic, PBC Visionary sponsor Bloomberg Visionary sponsor Hudson River Trading Visionary sponsor Meta Visionary sponsor NVIDIA Visionary sponsor Microsoft Sustainability sponsor Depot Continuous Integration AWS Cloud computing and Security Sponsor Datadog Monitoring Fastly CDN Google Download Analytics Sentry Error logging StatusPage Status page