🦜️🔗 LangChain

PyPI - Version PyPI - License PyPI - Downloads Twitter

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

pip install 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.

📕 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.

Project links

Data verified by PyPI on Nov 7, 2025
Data provided by the project maintainers, verified at the time the release was uploaded to PyPI.

Key dates

PyPI data
Data sourced directly from PyPI's database.
  • Released:
Newer release available (1.4.4)

1 maintainer

PyPI data
Data sourced directly from PyPI's database.
Avatar for langchain from gravatar.com langchain

GitHub Statistics

Data verified by PyPI on Nov 7, 2025
The GitHub source repository was provided by the project maintainers and verified by PyPI at the time of upload. Stars, forks, and open issues/PRs are derived from that repository and have not been independently verified.

License

MIT

Requires

Python <4.0.0, >=3.10.0

Provides Extra

anthropic aws azure-ai community deepseek fireworks google-genai google-vertexai groq huggingface mistralai model-profiles ollama openai perplexity together xai

Report project as malware

Metadata

Project links

Data verified by PyPI on Nov 7, 2025
Data provided by the project maintainers, verified at the time the release was uploaded to PyPI.

Key dates

PyPI data
Data sourced directly from PyPI's database.
  • Released:
Newer release available (1.4.4)

1 maintainer

PyPI data
Data sourced directly from PyPI's database.
Avatar for langchain from gravatar.com langchain

GitHub Statistics

Data verified by PyPI on Nov 7, 2025
The GitHub source repository was provided by the project maintainers and verified by PyPI at the time of upload. Stars, forks, and open issues/PRs are derived from that repository and have not been independently verified.

License

MIT

Requires

Python <4.0.0, >=3.10.0

Provides Extra

anthropic aws azure-ai community deepseek fireworks google-genai google-vertexai groq huggingface mistralai model-profiles ollama openai perplexity together xai

Report project as malware

Release files for langchain 1.0.5

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for langchain 1.0.5
File Size Uploaded
langchain-1.0.5.tar.gz 461.9 kB Details

Built distribution (wheel)

Table of built distributions (wheels) for langchain 1.0.5
File Interpreter ABI Platform
langchain-1.0.5-py3-none-any.whl 93.8 kB Python 3 none any Details

Total release size: 555.6 kB

Release files / langchain-1.0.5.tar.gz

Download URL langchain-1.0.5.tar.gz
Size 461.9 kB
Tags Source
SHA-256 checksum
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BLAKE2b-256 checksum
How to use checksums 		0c5dc98f2ffaefc73845a1f6bc66a8c2a643e36ce8ec09cff1307216c115d22c
Upload date
Uploaded using Trusted Publishing?
What is trusted publishing? 		Yes
Uploaded via twine/6.1.0 CPython/3.13.7

Release files / langchain-1.0.5-py3-none-any.whl

Download URL langchain-1.0.5-py3-none-any.whl
Size 93.8 kB
Tags Python 3
SHA-256 checksum
How to use checksums 		d59ce7303f1d9e4bca41855b20a1842f4470a22d09a64fb93fb0ff30a2d36d4b
BLAKE2b-256 checksum
How to use checksums 		e14f2603973fb3b74c717335703851a45914bc9794fbfaeb4ff74f7f08ecf5e8
Upload date
Uploaded using Trusted Publishing?
What is trusted publishing? 		Yes
Uploaded via twine/6.1.0 CPython/3.13.7

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0.0.1

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